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

NORWICH prefixes in area code 860

NANPA records 35 assigned NXX blocks to rate center NORWICH in area code 860, 4.5% 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. 10 holders hold those blocks, the largest being SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (14), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (7), NEW CINGULAR WIRELESS PCS, LLC - DC (5). The earliest assignment on record here is 2001-03-26 and the most recent 2016-01-28. 23 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 codes 607, 620, 740, 802 – overlay codes cover the same geography, so a rate center is served by all of them.

35 assigned blocks – 4.5% of 860
10 holders of record
23 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
860-204 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-213 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT – yes yes
860-215 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 2011-12-06 yes yes
860-222 Bandwidth BANDWIDTH.COM CLEC, LLC - CT 2010-08-23 yes yes
860-237 Lumen LEVEL 3 COMMUNICATIONS, LLC - CT – yes yes
860-300 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 2016-01-28 yes yes
860-303 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – no yes
860-312 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-319 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
860-334 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT – no yes
860-367 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-373 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT – yes yes
860-383 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CT – yes yes
860-425 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-608 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT – no yes
860-639 Windstream PAETEC ITEL, LLC – yes yes
860-705 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – no yes
860-710 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT 2001-03-26 yes yes
860-800 Peerless PEERLESS NETWORK OF CONNECTICUT, LLC - CT 2012-11-20 yes yes
860-822 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-823 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-848 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-859 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-861 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – no yes
860-862 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-884 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – no yes
860-885 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-886 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-887 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-889 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-892 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-908 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – no yes
860-917 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 2001-07-26 yes yes
860-934 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT 2014-12-09 yes yes
860-949 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 2006-07-20 yes 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 14 40%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT Verizon 7 20%
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 5 14.3%
OMNIPOINT COMMUNICATIONS, INC. - CT T-Mobile 3 8.6%
BANDWIDTH.COM CLEC, LLC - CT Bandwidth 1 2.9%
LEVEL 3 COMMUNICATIONS, LLC - CT Lumen 1 2.9%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 2.9%
TELEPORT COMMUNICATIONS AMERICA, LLC - CT AT&T 1 2.9%
PAETEC ITEL, LLC Windstream 1 2.9%
PEERLESS NETWORK OF CONNECTICUT, LLC - CT Peerless 1 2.9%

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 NORWICH in area code 860?

35 blocks: 204, 213, 215, 222, 237, 300, 303, 312, 319, 334, 367, 373 and 23 more, all listed in the table above.

Which carriers have numbers in NORWICH?

SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (14 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (7 blocks), NEW CINGULAR WIRELESS PCS, LLC - DC (5 blocks), OMNIPOINT COMMUNICATIONS, INC. - CT (3 blocks), BANDWIDTH.COM CLEC, LLC - CT (1 block), LEVEL 3 COMMUNICATIONS, LLC - CT (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is NORWICH 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