Changes and History of Maryland Area Codes: 01/01/1947 Area code 301 was put into service. In 1991 area code 301 was split to form area code 410. In 1997 area codes 301 was overlaid with area code 240. 10/06/1991 Area code 410 was put into service. Area code 410 was created from a split of area code 301. In 1997 area code 410 was overlaid with ... Area codes 301, 240, and 227 are telephone area codes in the North American Numbering Plan (NANP) for the western part of the U.S. state of Maryland. The numbering plan area (NPA) comprises Maryland's portion of the Greater Washington, D.C. metro area, portions of southern Maryland, along with rural … See moreWhen the original phone systems were put in place, 7-digit dialing (without the area code) could be used to make local calls, and 10-digit dialing (with the area code) only needed to be used for long distance calls. In 1997, area code 301 was introduced as the firstThe Maryland Public Service Commission has announced a new area code — 227 — that will serve the same locations as the 240 and 301 area codes. The 240 and 301 calling area serves residents and ...Area Codes Search Notes. Fixed phone numbers in Pakistan are comprised of a single country code (+92), a 2-4 digit area code, and a 50-80 digit line code. Making a call with the wrong country, area, or region code can be costly. Browse our sites area and region codes by region and city to ensure you have the correct information for your calls.Reverse Phone Lookup - 301 Phone Number Search Best results for Maryland Reverse Phone Lookup; 1 + 301 + 7-digits! International dialing format: Exit Code + Country Code + Subscriber Number Exit Code …The correct area code is 03 and it's used by UK Wide phone numbers , the following number (301) is a part of the local number. Please use the search box at the top to input the full phone number that called you. If you received a call beginning with this exact sequence (03301), it's likely a spoofed call, often used by scammers.A 301 Permanent Redirect is an HTTP response status code that indicates the new location of a requested resource; this new location URL is to be used with future requests. In search engines, 301 redirects are used to help direct web traffic from one page to another and communicate ‘moved permanently’ messages between servers and …What is area code 301 and what location is it coming from? The telephone area code 301 was created for the entire U.S. state of Maryland. It covers the Western …Bolivia. Brazil. Area Codes Search Notes. Fixed phone numbers in Colombia are comprised of a single country code (+57), a 4-7 digit area code, and a 30-60 digit line code. Making …BASKING RIDGE, N.J. - All customers with a 240 or 301 area code should be aware of the introduction of the new 227 area code. Beginning June 14, 2023, customers ordering new telephone lines or services in Aspen Hill, Bethesda, Bowie, Frederick, Gaithersburg, Germantown, Hagerstown, Potomac, Silver Spring, Waldorf, Wheaton, …Find all NPA NXX used in geographic area. This lookup uses the North American NPA NXX Rate Center Edition Database to determine the telephone exchange Rate Centers, area codes (NPA), and prefixes (NXX) used in the area surrounding any United States, Canadian, or Caribbean location. This lookup is used to find the active telephone …Enter the full 10 digit number, including area code, to find results. Please note that unlisted phone numbers may not appear in search results. If your initial phone lookup doesn't turn up results, see if you entered the right phone number. You might have mixed up the numbers, whether when you wrote them down or typed them in.Markham. Cluj-Napoca. Fierbinti-Targ. You are here: home Homepage. Country Code +92: Phone Calls from Pakistan. Search By Number. Country Dialling Code +92: Search for and report possible spam calls from Pakistan. Received a missed or unknown call starting with the international dialing code +92.Nokia 301 android secret codes to access the hidden features of the phone and get detailed information about the health of your phone. ... Nokia secret codes *#06# - IMEI (International Mobile Equipment Identity) number GSM codes for Nokia 301 Change PIN code - **04* and enter the old PIN code, and twice a new PIN code. ...Telephone numbers in Israel consist of an area code and a subscriber number. The dial plan type in Israel is closed, and "0" is the internal trunk prefix in Israel. Israel's country calling code is +972.. When dialing an Israeli number from inside of Israel, the format is : "0 - area/network operator code (A/N) - subscriber number (X)"unauthorised use. You can set your phone to ask for the lock code. that you define. The default lock code is 12345. Keep the code secret and in a safe place, separate from your phone. If you forget the code and your phone is locked, your …Browse area code 701 phone numbers, prefixes and exchanges. The 701 area code serves Fargo, Bismarck, Minot, Hazen, Dickinson, covering 105 ZIP codes in 55 counties. Menu. ... 1-701-301 : Mercer : Hazen : Cellco Partnership Dba Verizon Wireless - Nd : 1-701-302 : Cass : Fargo : New Cingular Wireless Pcs, Llc - Il : 1-701-303 : Cass : 1-301-679-XXXX is a Landline prefix hosted by the carrier Teleport Communications America, Llc - Dc. It includes 444 phone numbers. The city is Washington within District of Columbia County. This number is from the 20009 Zip Code. 444 results found for 1-301-679 Complete resource on dialing to the United States of America: country code, mobile and geographic area codes, phone number format and other helpful information. HowtoCallAbroad.com Toggle navigation. Home; ... 301/240/227: Baltimore, Columbia, Dundalk, Ellicott City, Towson: 410/443/667: Maine: Statewide: 207: Michigan: Did you get a call or text from 301-800-2722? View owner's full name, address, public records, and background check for +13018002722 with Whitepages reverse phone lookup. The correct area code is 03 and it's used by UK Wide phone numbers , the following number (301) is a part of the local number. Please use the search box at the top to input the full phone number that called you. If you received a call beginning with this exact sequence (03301), it's likely a spoofed call, often used by scammers.The USPhoneBook phone number lookup contains a wealth of data, making it easier than ever before to learn more about the people on the other end of the line. The more than two billion records in our reverse phone lookup directory can help you pinpoint where a phone call is coming from, who is making it, and shed light on even more information.Boone. Integrated Path Communications, Llc - Ia. 1-515-501. 1-515-502. Browse area code 515 phone numbers, prefixes and exchanges. The 515 area code serves Des Moines, Urbandale, Johnston, Ames, Gowrie, covering 90 ZIP codes in 19 counties.To faciltiate the millions of phone users, ... On January 1, 1947, the first North American area codes were issued in regions where standard 7 digit dialing codes were scheduled to be exhaused the soonest. ... 301, 410: Maine: 207: Michigan: 231, 248, 269, 313, 517, 586, 616, 734, 810, 906, 989:Lookup information on Area Code 301 - get demographic, NPA NXX, and other data by area codeTheft. 45-6-301. Theft. (1) A person commits the offense of theft when the person purposely or knowingly obtains or exerts unauthorized control over property of the owner and: (a) has the purpose of depriving the owner of the property; (b) purposely or knowingly uses, conceals, or abandons the property in a manner that deprives the owner of the ...The 301 area code is a telephone area code in the North American Numbering Plan (NANP) for parts of Maryland, including Montgomery County and Prince …Area code 301 is in Maryland covering Germantown , along with Accident, Accokeek and 310 towns and cities. 301 Area Code Phone Lookup. 301 - Search. 203/475. + −. Leaflet | …1-301-200-XXXX is a Landline prefix hosted by the carrier Bandwidth.com Clec, Llc - Md. It includes 297 phone numbers. The city is Washington within District of Columbia County. This number is from the 20009 Zip Code. 297 results found for 1-301-200Lookup information on Area Code 301 - get demographic, NPA NXX, and other data by area code3 days ago · 301-998. WSNGTNZN11, MD. VERIZON MARYLAND, INC. 301-999. VERIZON MARYLAND, INC. [UNASSIGNED] Back to top ». Area code 301 is located in W Maryland and includes Silver Spring. View the 301 area code map, major cities, location, timezone and more on TeraCodes.com. February 23, 2024 was the day with the highest activity due to 25 reports for phone numbers with the country code +31. Phone Numbers from Netherlands with currently high activity. phone +3197010205725 6 Requests. phone +31107910133 2 Requests. phone +31207153335 2 Requests. phone +31202596688 2 Requests. phone +31103180983 1 …The USPhoneBook phone number lookup contains a wealth of data, making it easier than ever before to learn more about the people on the other end of the line. The more than two billion records in our reverse phone lookup directory can help you pinpoint where a phone call is coming from, who is making it, and shed light on even more information.Phone codes of countries and regions. Samples: +91 8413 307 , 918413307 , +1441. . Last update: Apr 11, 2024. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * … The 202, 301, and 703area codes are the places to be. There are two Fortune 500 companies in Washington DC. The first is Fannie Mae, which came in at #21 on the 2018 list, and the second is Danaher, which was ranked #162. In addition to these, area code 212, 301, and 703 is also home to two companies on the Fortune 1000 list. Lookup information on Area Code 301 - get demographic, NPA NXX, and other data by area code 1-301-200-XXXX is a Landline prefix hosted by the carrier Bandwidth.com Clec, Llc - Md. It includes 297 phone numbers. The city is Washington within District of Columbia County. This number is from the 20009 Zip Code. 297 results found for 1-301-200 1-301-200-XXXX is a Landline prefix hosted by the carrier Bandwidth.com Clec, Llc - Md. It includes 297 phone numbers. The city is Washington within District of Columbia County. This number is from the 20009 Zip Code. 297 results found for 1-301-200Telephone country code +1 is North America, including the USA, Canada, and certain Caribbean-ish islands. Area code +1 301 is the southern and western parts of the state of Maryland, including the ...Country Dialling Code +60: Search for and report possible spam calls from Malaysia. Received a missed or unknown call starting with the international dialing code +60. ... March 13, 2024 was the day with the highest activity due to 14 reports for phone numbers with the country code +60. Phone Numbers from Malaysia with currently high …A 301 Permanent Redirect is an HTTP response status code that indicates the new location of a requested resource; this new location URL is to be used with future requests. In search engines, 301 redirects are used to help direct web traffic from one page to another and communicate ‘moved permanently’ messages between servers and …Country Dialling Code +216: Search for and report possible spam calls from Tunisia. Received a missed or unknown call starting with the international dialing code +216. ... January 25, 2024 was the day with the highest activity due to 8 reports for phone numbers with the country code +216. Phone Numbers from Tunisia with currently high …The USPhoneBook phone number lookup contains a wealth of data, making it easier than ever before to learn more about the people on the other end of the line. The more than two billion records in our reverse phone lookup directory can help you pinpoint where a phone call is coming from, who is making it, and shed light on even more information.January 26, 2024. BY Baltimore Examiner. No Comments. When we flip through the annals of telecommunications history, the 301 area code emerges not simply as a collection of …Most current and detailed information for Maryland area codes and telephone prefixes / exchanges and associated cities and towns. Area Codes Country Codes Zip Codes Telecoms. Area Codes Country Codes Zip Codes ... 240-301 [UNASSIGNED] 240-302. LAUREL236, MD. NEW CINGULAR WIRELESS PCS, LLC - …Numbering plan areas in California (blue) and border states. In 1947, the American Telephone and Telegraph Company (AT&T) devised the first nationwide telephone numbering plan and assigned the original North American area codes.The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, …Area Codes Search Notes. Fixed phone numbers in the United States are comprised of a single country code (+1), a 3 digit area code, a 3 digit local office code (or region code), and a 4 digit line code. Making a call with the wrong country, area, or region code can be costly. Browse our sites area and region codes by state and city to ensure you have the …City Data. Browse Phone Numbers by Prefix. Our database includes 678 area code 301 prefixes with phone numbers: Area Code 301 Information. Area code 301 belongs to …Area code 301 is located in W Maryland and includes Silver Spring. View the 301 area code map, major cities, location, ... CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD . 9/20/11. 301-330. GAITHERSBG, MD. VERIZON MARYLAND, INC. 301-331. HAGERSTOWN, MD. NEW CINGULAR WIRELESS ...Agent Code. 318-301-5947; Minor Coupons. 110-349-1707; 437-315-4229; ... Just type the coupon code on the phone, screenshot below: Agent17 Coupon Code FAQs. How to Cheat More Resources in the game? Press SHIFT + O to call console (if not work, make sure that the developer console has been enabled)The international dialing code for United States is +1. You must enter this number if you are calling from another country. United States. International phone number: +1. IDD. 011. ISO code 2: US. ISO code 3:Top searched (301) phone numbers. Most frequently searched (301) phone numbers in the past 24 hours. (301) 301-9117. 84 searches (301) 301-9124 ... Area code 301 serves the western and southern parts of Maryland, including cities like Bethesda, Rockville, and Gaithersburg. The region offers a blend of suburban and rural landscapes.YOU MUST also submit 300/301 data if your establishment(s) ... you must provide a valid 6-digit 2012, 2017, or 2022 NAICS code. Choose the code that represents the activity that generates the most revenue for your establishment and/or has the most employees, whichever is more applicable to your business. ... Telephone numbers; Home addresses;301 : Calling Cards to Colombia : Calling Instructions for Colombia ... For Domestic Calls in the U.S., Canada & Caribbean: 1+ area code + the phone number. 4. For international calls: 011 + Country code + city code + The phone number. if you are not using our calling cards you can skip step 1 & 2 : Best Selling Phone Cards to Colombia:However, when dialing from abroad, the trunk code '0' must be replaced with the country code '+359'. Mobile numbers. This article needs to be updated. ... Smolyan Province codes (301: Smolyan, 309: Pamporovo) 30xx 30xxx 31x: Plovdiv Province codes 31xx 31xxx 32: Plovdiv 33x: Plovdiv Province codes (331: Asenovgrad) 33xx 34:The international dialing code for United States is +1. You must enter this number if you are calling from another country. United States. International phone number: +1. IDD. 011. ISO code 2: US. ISO code 3: 1-270-301-XXXX is a Landline prefix hosted by the carrier Level 3 Communications, Llc - Ky. It includes 48 phone numbers. The city is Bowling Green within Warren County. This number is from the 42101 Zip Code. 48 results found for 1-270-301 Area Code 301 phone numbers. In Service Since 1947. Primarily serving the state of Maryland • Across 16 counties and 95 zip codes. Major Cities Served: Washington • …Most frequently searched (301) phone numbers in the past 24 hours. (301) 440-2300. 144 searches (301) 381-1150. 26 searches (301) 973-6485. 10 searches ... Montgomery County, covered by area code 301, is one of the most affluent counties in the United States, with a strong focus on education and a highly educated population.Each US area code may contain up to 7,919,000 phone numbers, and formats are always NPA-NXX-XXXX: ... 301 Maryland ; 302 Delaware ; 303 Colorado ; 304 West Virginia ; 305 Florida ; 307 Wyoming ; 308 Nebraska ; 309 Illinois ; 310 California ; 312 Illinois ; 313 Michigan ; 314 Missouri ; 315 New York ;What Is Area Code 301? 301 is a Maryland telephone area code. It was one of the original area codes established in 1947. The area code covers the northwestern suburbs of …301 is an area code located in the state of Maryland, US. The largest city it serves is Baltimore. Location, time zone and map of the 301 area code. Local time. …This area code was assigned on July 2nd, 1987. On July 16th, 1988 it went into service. 508 is a General Purpose Code. 508 service area does overlap with 774 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.BASKING RIDGE, N.J. - All customers with a 240 or 301 area code should be aware of the introduction of the new 227 area code. Beginning June 14, 2023, customers ordering new telephone lines or services in Aspen Hill, Bethesda, Bowie, Frederick, Gaithersburg, Germantown, Hagerstown, Potomac, Silver Spring, Waldorf, Wheaton, …Renumbered from Occupations Code, Section 301.353 by Acts 2007, 80th Leg., R.S., Ch. 921 (H.B. 3167), Sec. 17.001(57), eff. September 1, 2007. Sec. 301.356. REFUSAL OF MANDATORY OVERTIME. The refusal by a nurse to work mandatory overtime as authorized by Chapter 258, Health and Safety Code, does not constitute patient …Area codes 202 and 771. Coordinates: 38°54′N 77°2′W. The red area is the District of Columbia, served by area codes 202 and 771. Area codes 202 and 771 are telephone area codes in the North American Numbering Plan (NANP) for Washington, D.C. Area code 202 was one of the original North American area codes established in October …Phone codes of countries and regions. Samples: +91 8413 307 , 918413307 , +1441. . Last update: Apr 11, 2024. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * …301 Area Code. W Maryland. April 21, 2024. U.S. STATE Capitals: Learn the state capitals | Take the State Capitals Quiz. 301 Prefixes/Exchanges. Prefix. Location. …This area code was assigned on July 2nd, 1987. On July 16th, 1988 it went into service. 508 is a General Purpose Code. 508 service area does overlap with 774 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.240 Area Code. Area code 240 serves the state of Maryland. This area code was assigned on June 21st, 1996. On June 1st, 1997 it went into service. 240 is a General Purpose Code. 240 service area does overlap with 301 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.Most frequently searched (301) phone numbers in the past 24 hours. (301) 301-9132. 201 searches (301) 301-9124. 52 searches (301) 635-9267. 9 searches ... Montgomery County, covered by area code 301, is one of the most affluent counties in the United States, with a strong focus on education and a highly educated population.Area Code 301 is one of the original area codes created in the NANP (North American Numbering Plan). It was introduced in 1947 to serve the entire state of Maryland. At first, the 301 area code was split to form area code 410. In 1997, the 301 area code overlaid with the 240 area code.Nokia 301 android secret codes to access the hidden features of the phone and get detailed information about the health of your phone. ... Nokia secret codes *#06# - IMEI (International Mobile Equipment Identity) number GSM codes for Nokia 301 Change PIN code - **04* and enter the old PIN code, and twice a new PIN code. ...Agent Code. 318-301-5947; Minor Coupons. 110-349-1707; 437-315-4229; ... Just type the coupon code on the phone, screenshot below: Agent17 Coupon Code FAQs. How to Cheat More Resources in the game? Press SHIFT + O to call console (if not work, make sure that the developer console has been enabled)To faciltiate the millions of phone users, ... On January 1, 1947, the first North American area codes were issued in regions where standard 7 digit dialing codes were scheduled to be exhaused the soonest. ... 301, 410: Maine: 207: Michigan: 231, 248, 269, 313, 517, 586, 616, 734, 810, 906, 989:These phone numbers include 227, 240, 301, 410, 443, and 667 area codes, which you can use anytime, anywhere. Pricing. Product. Use cases. Company. Blog. Resources. ... Retire your outdated business phone service and switch to virtual phone numbers led by local area codes. OpenPhone's free 7 day trial is all you need to get started. Get started. 800notes is a good US-based option. Type in the phone number in the "Search" box, and you'll get user reviews based on experiences with the number. YouMail is a more advanced option for US numbers ... Whitepages is the leader in helping consumers and small businesses find accurate and up-to-date phone numbers, addresses, and emails. Since 1997, Whitepages has been the largest and most trusted U.S. phone book and address directory online with contact information, public records and property records for 260 million people nation-wide.The Federal Trade Commission previously linked these area codes to the scam: 268, 284, 473, 664, 649, 767, 809, 829, 849 and 876. Bottom line: If you receive an unexpected call or text from an area code you don’t recognize, don’t answer it. Do a Google search to see where the number is registered. If it’s someone you know, they’ll call ...Extended search being performed may take a significant time so a forking proxy must send a 100 Trying response. [1] : §21.1.1. 180 Ringing. Destination user agent received INVITE, and is alerting user of call. [1] : §21.1.2. 181 Call is Being Forwarded. Servers can optionally send this response to indicate a call is being forwarded. [1 ...Area codes 703 and 571 are telephone area codes in the North American Numbering Plan (NANP) for Northern Virginia, ... The same issue had forced the split of area code 410 from 301 four years earlier. The 1995 split was intended to be a long-term solution. However, within four years, 703 was close to exhaustion due to the proliferation of cell ... In service since January 01, 1947, area code 301 is the parent Numbering Plan Area in overlay complex 301/240/227 (overlaying NPAs cover the same area). The current time for places served by area code 301 is 06:19:15 PM (Eastern Time Zone). Reverse phone lookup The 301 Area Code is located in the state of Maryland. Area Code 301 is one of the 269 three-digit telephone area codes in the USA. It covers roughly 7,744,994 unique phone … In 1997 area codes 301 was overlaid with area code 240. Area code 227 was put into service as a distributed overlay of area codes 240 and 301 in Maryland on 06/14/23. Ten digit dialing (area code + seven digit number) is necessary in the 227/240/301 overlay because different homes in the same geographic area can have the same seven digit phone ... Agent Code. 318-301-5947; Minor Coupons. 110-349-1707; 437-315-4229; ... Just type the coupon code on the phone, screenshot below: Agent17 Coupon Code FAQs. How to Cheat More Resources in the game? Press SHIFT + O to call console (if not work, make sure that the developer console has been enabled) What Is Area Code 301? 301 is a Maryland telephone area code. It was one of the original area codes established in 1947. The area code covers the northwestern suburbs of Washington, D.C., including Montgomery County and most of Prince George's County.
With that in mind, the Federal Trade Commission says you should never call back numbers in these area codes: 268: Antigua and Barbuda. 284: British Virgin Islands. 473: Grenada, Carriacou and Petite Martinique. 664: Montserrat. 649: Turks and Caicos Islands. 767: Commonwealth of Dominica.. Fall just
To use the site, simply enter the full 10-digit phone number you want to perform a reverse search on and click Search . You can get details about most businesses and many personal phone numbers at ...How to Call A Phone Number with the 202, 301, and 703 Area Codes? You may dial any phone number with the 202, 301, and 703 area codes by following these two simple steps – In this situation, dial 202, 301, and 703 on your phone, which is the area code. Then dial the seven-digit phone number. That is all you need to do!3 days ago · 301-998. WSNGTNZN11, MD. VERIZON MARYLAND, INC. 301-999. VERIZON MARYLAND, INC. [UNASSIGNED] Back to top ». Area code 301 is located in W Maryland and includes Silver Spring. View the 301 area code map, major cities, location, timezone and more on TeraCodes.com. Find locations of telephone numbers. Detailed Location Information for any telephone number / prefix in any area code. Search in Area Code 301 MARYLAND Enter prefix in box. This is a directory of U.S./Canada/Caribbean telephone prefixes and …301 Area Code. W Maryland. April 21, 2024. U.S. STATE Capitals: Learn the state capitals | Take the State Capitals Quiz. 301 Prefixes/Exchanges. Prefix. Location. …Area Code 301 has 700 prefixes. Browse area code 301 phone numbers, …Area code 301 is located in W Maryland and includes Silver Spring. View the 301 area code map, major cities, location, ... CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD . 9/20/11. 301-330. GAITHERSBG, MD. VERIZON MARYLAND, INC. 301-331. HAGERSTOWN, MD. NEW CINGULAR WIRELESS ...Lookup phone numbers & find out more about who is calling you. 411. 411 reverse phone lookup service is free. Enter a phone number, search and find the phone owner’s full name, address and more. Find out who called you.Area code 301 is assigned for use in Maryland since Jan 01, 1947. View all phone prefixes used in area code 301 or other area codes in Maryland . Included with …The 0141 area code will allow you to make calls to Glasgow from wherever in the world you are. For those who wish to call Glasgow from abroad, follow these simple steps: 1. Dial the international access code. 2. Enter the UK country code (44) 3. Dial the local 0141 Glasgow, without the first zero. 4.Area Code 301 is one of the original area codes created in the NANP (North American Numbering Plan). It was introduced in 1947 to serve the entire state of Maryland. At first, the 301 area code was split to form area code 410. In 1997, the 301 area code overlaid with the 240 area code.YOU MUST also submit 300/301 data if your establishment(s) ... you must provide a valid 6-digit 2012, 2017, or 2022 NAICS code. Choose the code that represents the activity that generates the most revenue for your establishment and/or has the most employees, whichever is more applicable to your business. ... Telephone numbers; Home addresses;The USPhoneBook phone number lookup contains a wealth of data, making it easier than ever before to learn more about the people on the other end of the line. The more than two billion records in our reverse phone lookup directory can help you pinpoint where a phone call is coming from, who is making it, and shed light on even more information. Country Codes, Phone Codes, Dialing Codes, Telephone Codes, ISO Country Codes. CountryCode.org is your complete guide to call anywhere in the world. The calling chart above will help you find the dialing codes you need to make long distance phone calls to friends, family, and business partners around the globe. 1-270-301-XXXX is a Landline prefix hosted by the carrier Level 3 Communications, Llc - Ky. It includes 48 phone numbers. The city is Bowling Green within Warren County. This number is from the 42101 Zip Code. 48 results found for 1-270-301 301 : Calling Cards to Colombia : Calling Instructions for Colombia ... For Domestic Calls in the U.S., Canada & Caribbean: 1+ area code + the phone number. 4. For international calls: 011 + Country code + city code + The phone number. if you are not using our calling cards you can skip step 1 & 2 : Best Selling Phone Cards to Colombia:What Is Area Code 301? 301 is a Maryland telephone area code. It was one of the original area codes established in 1947. The area code covers the northwestern suburbs of ….