Lookup Area Code 301, Central Office & Exchange Code 378

The area code indicates the regional location of the phone number. According to NANP, there are 405 area codes in North America.

Of these, 326 are in the US, 42 are in Canada, 17 are non-geographic virtual number, and 20 are others(mostly Caribbean).

The number of area codes is different for each area, in the future, the area with the most phone number users will have more area codes.

301378 is phone number first 6-digit, in the full phone number 301378xxxx, 301 is the Area Code, 378 is the Central Office & Exchange Code, xxxx is the subscriber number.

All North American phone numbers are in a three-part format.

Determine the phone number format, it can accurately lookup phone number information.

According to area code 301, determine the regional location

State: Maryland

Region: Maryland

Center City: Aspen Hill, Bethesda, Bowie

Area Code: 301 Area Code

State: Maryland

Center City: Rockville

Phone Used: (301) 378-

Primary City: Frederick, MD

Owned Company: Comcast Phone Of Northern Maryland

County:

Owned Type: Unknown

Owned Carrier: Comcast Phone Of Northern Maryland, Inc. - MD

Counties:

Full Zip Code: 21701

State & Region & County & City & Location map with Area Code

Too many area codes, map size limit, all area codes may not be displayed, only major area codes.

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301378 is the first 6-digit of the phone number, it can only lookup the regional location.

Lookup a phone number, the number must be complete. The full phone number is 10-digit, 301378-xxxx, 301 is the area code, 378 is the central office number, telephone exchange code, the last four digits, xxxx is the subscriber number, real phone users number.

Below is the complete, (301)378-xxxx active phone numbers, contains used, unused, and possibly deregistered phone numbers.

3013780003 3013780008 3013780002 3013780007 3013780000 3013780005 3013780009 3013780004 3013780001 3013780006 3013780013 3013780018 3013780012 3013780017 3013780010 3013780015 3013780019 3013780014 3013780011 3013780016 3013780023 3013780028 3013780022 3013780027 3013780020 3013780025 3013780029 3013780024 3013780021 3013780026 3013780033 3013780038 3013780032 3013780037 3013780030 3013780035 3013780039 3013780034 3013780031 3013780036 3013780043 3013780048 3013780042 3013780047 3013780040 3013780045 3013780049 3013780044 3013780041 3013780046 3013780053 3013780058 3013780052 3013780057 3013780050 3013780055 3013780059 3013780054 3013780051 3013780056 3013780063 3013780068 3013780062 3013780067 3013780060 3013780065 3013780069 3013780064 3013780061 3013780066 3013780073 3013780078 3013780072 3013780077 3013780070 3013780075 3013780079 3013780074 3013780071 3013780076 3013780083 3013780088 3013780082 3013780087 3013780080 3013780085 3013780089 3013780084 3013780081 3013780086 3013780093 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Above active phone number (301)378-xxxx list, from the telephone operator number database. Phone Lookuper does not provide number identification services. If you have any questions about this information, welcome to contact us.