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

YADKINVL prefixes in area code 336

NANPA records 4 assigned NXX blocks to rate center YADKINVL in area code 336, 0.5% 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. 3 holders hold those blocks, the largest being BRIGHTSPEED OF NORTH CAROLINA, LLC (2), SUNCOM DBA T-MOBILE USA (1), YADKIN VALLEY TELECOM, INC. - NC (1). The earliest assignment on record here is 2001-04-17 and the most recent 2001-04-17. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.5% of 336
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
336-518 T-Mobile SUNCOM DBA T-MOBILE USA – yes yes
336-677 YADKIN VALLEY TELECOM, INC. - NC 2001-04-17 yes yes
336-679 Brightspeed BRIGHTSPEED OF NORTH CAROLINA, LLC – yes yes
336-849 Brightspeed BRIGHTSPEED OF NORTH CAROLINA, 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 NORTH CAROLINA, LLC Brightspeed 2 50%
SUNCOM DBA T-MOBILE USA T-Mobile 1 25%
YADKIN VALLEY TELECOM, INC. - NC – 1 25%

Frequently asked

Which prefixes belong to YADKINVL in area code 336?

4 blocks: 518, 677, 679, 849. The table above gives the holder of each.

Which carriers have numbers in YADKINVL?

BRIGHTSPEED OF NORTH CAROLINA, LLC (2 blocks), SUNCOM DBA T-MOBILE USA (1 block), YADKIN VALLEY TELECOM, INC. - NC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is YADKINVL 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 336

All 783 prefixes in 336