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

E HAMPTON prefixes in area code 860

NANPA records 6 assigned NXX blocks to rate center E HAMPTON in area code 860, 0.8% 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. 4 holders hold those blocks, the largest being SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (3), TELEPORT COMMUNICATIONS AMERICA, LLC - CT (1), ONVOY, LLC - CT (1). 6 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 631, 934, 959 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 0.8% of 860
4 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
860-267 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-295 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-365 AT&T SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT – yes yes
860-467 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CT – yes yes
860-775 Onvoy ONVOY, LLC - CT – yes yes
860-813 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – 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 3 50%
TELEPORT COMMUNICATIONS AMERICA, LLC - CT AT&T 1 16.7%
ONVOY, LLC - CT Onvoy 1 16.7%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 16.7%

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 E HAMPTON in area code 860?

6 blocks: 267, 295, 365, 467, 775, 813. The table above gives the holder of each.

Which carriers have numbers in E HAMPTON?

SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (3 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - CT (1 block), ONVOY, LLC - CT (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is E HAMPTON 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