NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

NEWBRITAIN prefixes in area code 860

NANPA records 26 assigned NXX blocks to rate center NEWBRITAIN in area code 860, 3.3% of the 783 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 7 holders hold those blocks, the largest being SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (12), OMNIPOINT COMMUNICATIONS, INC. - CT (4), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3). The earliest assignment on record here is 2002-05-30 and the most recent 2016-10-12. 17 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area code 959 – overlay codes cover the same geography, so a rate center is served by all of them.

26 assigned blocks – 3.3% of 860
7 holders of record
17 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
860-223 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-224 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-225 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-229 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-259 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
860-348 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-356 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
860-357 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
860-438 AT&T AT&T - LOCAL – yes yes
860-505 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CT – yes yes
860-515 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CT – yes yes
860-518 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT – no yes
860-538 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT 2002-09-03 yes yes
860-612 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-770 Windstream PAETEC ITEL, LLC – yes yes
860-797 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT – yes yes
860-801 Windstream PAETEC ITEL, LLC – yes yes
860-826 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-827 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-828 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-829 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-832 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-839 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2002-05-30 yes yes
860-893 Windstream PAETEC ITEL, LLC – yes yes
860-914 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT 2016-10-12 yes yes
860-991 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes

The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.

Who holds the blocks

HolderBrandBlocksShare here
SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT AT&T 12 46.2%
OMNIPOINT COMMUNICATIONS, INC. - CT T-Mobile 4 15.4%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 3 11.5%
PAETEC ITEL, LLC Windstream 3 11.5%
TELEPORT COMMUNICATIONS AMERICA, LLC - CT AT&T 2 7.7%
AT&T - LOCAL AT&T 1 3.8%
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 1 3.8%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to NEWBRITAIN in area code 860?

26 blocks: 223, 224, 225, 229, 259, 348, 356, 357, 438, 505, 515, 518 and 14 more, all listed in the table above.

Which carriers have numbers in NEWBRITAIN?

SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (12 blocks), OMNIPOINT COMMUNICATIONS, INC. - CT (4 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3 blocks), PAETEC ITEL, LLC (3 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - CT (2 blocks), AT&T - LOCAL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is NEWBRITAIN a city?

It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.

Other rate centers in 860

All 783 prefixes in 860