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

NEW LONDON prefixes in area code 860

NANPA records 40 assigned NXX blocks to rate center NEW LONDON in area code 860, 5.1% 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. 8 holders hold those blocks, the largest being SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (22), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (5), OMNIPOINT COMMUNICATIONS, INC. - CT (4). The earliest assignment on record here is 2001-05-01 and the most recent 2009-12-03. 25 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 274, 319, 320, 419 – overlay codes cover the same geography, so a rate center is served by all of them.

40 assigned blocks – 5.1% of 860
8 holders of record
25 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
860-235 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT – no yes
860-271 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-287 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 2002-10-22 yes yes
860-326 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CT – yes yes
860-333 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-389 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – yes yes
860-405 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-433 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-437 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-439 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-440 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-441 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-442 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-443 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-444 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-445 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-446 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-447 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-448 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-449 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-460 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT – no yes
860-501 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2002-11-04 yes yes
860-514 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT – no yes
860-574 T-Mobile METROPCS, INC. 2009-12-03 yes yes
860-625 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT – yes yes
860-629 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-686 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-694 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-701 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-715 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-732 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-772 IDT AMERICA, CORP. - CT 2008-10-01 yes yes
860-857 T-Mobile METROPCS, INC. – yes yes
860-865 Lumen LEVEL 3 COMMUNICATIONS, LLC - CT – yes yes
860-867 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT 2002-02-19 yes yes
860-910 Lumen LEVEL 3 COMMUNICATIONS, LLC - CT 2001-05-01 yes yes
860-912 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT – yes yes
860-941 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT – yes yes
860-961 T-Mobile METROPCS, INC. – yes yes
860-984 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT – 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 22 55%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT Verizon 5 12.5%
OMNIPOINT COMMUNICATIONS, INC. - CT T-Mobile 4 10%
METROPCS, INC. T-Mobile 3 7.5%
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 2 5%
LEVEL 3 COMMUNICATIONS, LLC - CT Lumen 2 5%
TELEPORT COMMUNICATIONS AMERICA, LLC - CT AT&T 1 2.5%
IDT AMERICA, CORP. - CT – 1 2.5%

Frequently asked

Which prefixes belong to NEW LONDON in area code 860?

40 blocks: 235, 271, 287, 326, 333, 389, 405, 433, 437, 439, 440, 441 and 28 more, all listed in the table above.

Which carriers have numbers in NEW LONDON?

SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (22 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (5 blocks), OMNIPOINT COMMUNICATIONS, INC. - CT (4 blocks), METROPCS, INC. (3 blocks), NEW CINGULAR WIRELESS PCS, LLC - DC (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - CT (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is NEW LONDON 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