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

RUFFIN prefixes in area code 336

NANPA records 4 assigned NXX blocks to rate center RUFFIN 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 BANDWIDTH.COM CLEC, LLC - NC (2), ONVOY, LLC - NC (1), BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (1). The earliest assignment on record here is 2010-02-15 and the most recent 2019-06-21. 4 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 743 – overlay codes cover the same geography, so a rate center is served by all of them.

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
336-396 Onvoy ONVOY, LLC - NC 2016-05-09 yes yes
336-891 Bandwidth BANDWIDTH.COM CLEC, LLC - NC 2010-02-15 yes yes
336-939 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – yes yes
336-974 Bandwidth BANDWIDTH.COM CLEC, LLC - NC 2019-06-21 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
BANDWIDTH.COM CLEC, LLC - NC Bandwidth 2 50%
ONVOY, LLC - NC Onvoy 1 25%
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL AT&T 1 25%

Frequently asked

Which prefixes belong to RUFFIN in area code 336?

4 blocks: 396, 891, 939, 974. The table above gives the holder of each.

Which carriers have numbers in RUFFIN?

BANDWIDTH.COM CLEC, LLC - NC (2 blocks), ONVOY, LLC - NC (1 block), BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is RUFFIN 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