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

OLD SAYBRK prefixes in area code 860

NANPA records 15 assigned NXX blocks to rate center OLD SAYBRK in area code 860, 1.9% 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. 9 holders hold those blocks, the largest being SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (5), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (2), NEW CINGULAR WIRELESS PCS, LLC - DC (2). The earliest assignment on record here is 2001-06-21 and the most recent 2001-06-21. 13 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.

15 assigned blocks – 1.9% of 860
9 holders of record
13 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
860-227 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT – no yes
860-304 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – yes yes
860-339 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
860-388 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-391 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-395 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-399 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – no yes
860-510 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-575 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT – yes yes
860-577 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CT – yes yes
860-661 Lumen LEVEL 3 COMMUNICATIONS, LLC - CT – yes yes
860-853 T-Mobile METROPCS, INC. – yes yes
860-876 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – yes yes
860-943 Windstream PAETEC ITEL, LLC – yes yes
860-964 T-Mobile OMNIPOINT COMMUNICATIONS, INC. - CT 2001-06-21 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 5 33.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT Verizon 2 13.3%
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 2 13.3%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 6.7%
TELEPORT COMMUNICATIONS AMERICA, LLC - CT AT&T 1 6.7%
LEVEL 3 COMMUNICATIONS, LLC - CT Lumen 1 6.7%
METROPCS, INC. T-Mobile 1 6.7%
PAETEC ITEL, LLC Windstream 1 6.7%
OMNIPOINT COMMUNICATIONS, INC. - CT T-Mobile 1 6.7%

Frequently asked

Which prefixes belong to OLD SAYBRK in area code 860?

15 blocks: 227, 304, 339, 388, 391, 395, 399, 510, 575, 577, 661, 853 and 3 more, all listed in the table above.

Which carriers have numbers in OLD SAYBRK?

SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (5 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - DC (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, 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 OLD SAYBRK 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