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

WISE prefixes in area code 276

NANPA records 5 assigned NXX blocks to rate center WISE in area code 276, 1.3% of the 374 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. 3 holders hold those blocks, the largest being VERIZON VIRGINIA, INC. (3), LEVEL 3 COMMUNICATIONS, LLC - VA (1), COMCAST IP PHONE, LLC (1). The earliest assignment on record here is 2014-11-04 and the most recent 2021-08-03. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

5 assigned blocks – 1.3% of 276
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
276-255 Lumen LEVEL 3 COMMUNICATIONS, LLC - VA 2021-08-03 yes yes
276-321 Verizon VERIZON VIRGINIA, INC. – yes yes
276-328 Verizon VERIZON VIRGINIA, INC. – no yes
276-376 Verizon VERIZON VIRGINIA, INC. – yes yes
276-533 Comcast COMCAST IP PHONE, LLC 2014-11-04 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
VERIZON VIRGINIA, INC. Verizon 3 60%
LEVEL 3 COMMUNICATIONS, LLC - VA Lumen 1 20%
COMCAST IP PHONE, LLC Comcast 1 20%

Frequently asked

Which prefixes belong to WISE in area code 276?

5 blocks: 255, 321, 328, 376, 533. The table above gives the holder of each.

Which carriers have numbers in WISE?

VERIZON VIRGINIA, INC. (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - VA (1 block), COMCAST IP PHONE, 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 WISE 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 276

All 374 prefixes in 276