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

FIELDALE prefixes in area code 276

NANPA records 3 assigned NXX blocks to rate center FIELDALE in area code 276, 0.8% 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. 2 holders hold those blocks, the largest being BRIGHTSPEED OF VIRGINIA, LLC (2), TWILIO INTERNATIONAL, INC. (1). The earliest assignment on record here is 2021-04-30 and the most recent 2021-04-30. 2 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

3 assigned blocks – 0.8% of 276
2 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
276-256 Twilio TWILIO INTERNATIONAL, INC. 2021-04-30 yes yes
276-673 Brightspeed BRIGHTSPEED OF VIRGINIA, LLC – no yes
276-681 Brightspeed BRIGHTSPEED OF VIRGINIA, 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
BRIGHTSPEED OF VIRGINIA, LLC Brightspeed 2 66.7%
TWILIO INTERNATIONAL, INC. Twilio 1 33.3%

Frequently asked

Which prefixes belong to FIELDALE in area code 276?

3 blocks: 256, 673, 681. The table above gives the holder of each.

Which carriers have numbers in FIELDALE?

BRIGHTSPEED OF VIRGINIA, LLC (2 blocks), TWILIO INTERNATIONAL, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is FIELDALE 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