Lookup Area Code 203, Central Office & Exchange Code 421

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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.

203421 is phone number first 6-digit, in the full phone number 203421xxxx, 203 is the Area Code, 421 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 203, determine the regional location

State: Connecticut

Region: Connecticut

Center City: Bridgeport, Danbury, Meriden

Area Code: 203 Area Code

State: Connecticut

Center City: New Haven

Phone Used: (203) 421-

Primary City: Madison, CT

Owned Company: Southern New England Telephone Co.

County: New Haven

Owned Type: Landline

Owned Carrier: Southern New England Telephone Co.

Counties: New Haven County

Full Zip Code: 06443 (99%)

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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What do you want about the number 203421?

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How do you know Phone Lookuper?

203421 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, 203421-xxxx, 203 is the area code, 421 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, (203)421-xxxx active phone numbers, contains used, unused, and possibly deregistered phone numbers.

2034211003 2034211008 2034211002 2034211007 2034211000 2034211005 2034211009 2034211004 2034211001 2034211006 2034211013 2034211018 2034211012 2034211017 2034211010 2034211015 2034211019 2034211014 2034211011 2034211016 2034211023 2034211028 2034211022 2034211027 2034211020 2034211025 2034211029 2034211024 2034211021 2034211026 2034211033 2034211038 2034211032 2034211037 2034211030 2034211035 2034211039 2034211034 2034211031 2034211036 2034211043 2034211048 2034211042 2034211047 2034211040 2034211045 2034211049 2034211044 2034211041 2034211046 2034211053 2034211058 2034211052 2034211057 2034211050 2034211055 2034211059 2034211054 2034211051 2034211056 2034211063 2034211068 2034211062 2034211067 2034211060 2034211065 2034211069 2034211064 2034211061 2034211066 2034211073 2034211078 2034211072 2034211077 2034211070 2034211075 2034211079 2034211074 2034211071 2034211076 2034211083 2034211088 2034211082 2034211087 2034211080 2034211085 2034211089 2034211084 2034211081 2034211086 2034211093 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Above active phone number (203)421-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.


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