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

PIEDMONT prefixes in area code 864

NANPA records 6 assigned NXX blocks to rate center PIEDMONT in area code 864, 0.8% of the 784 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. 6 holders hold those blocks, the largest being AT&T ENTERPRISES, LLC (1), ONVOY, LLC - SC (1), BANDWIDTH.COM CLEC, LLC - SC (1). The earliest assignment on record here is 2005-08-04 and the most recent 2021-12-14. 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 256, 304, 405, 572 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 0.8% of 864
6 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
864-625 AT&T AT&T ENTERPRISES, LLC 2009-12-23 yes yes
864-740 Onvoy ONVOY, LLC - SC 2016-03-09 yes yes
864-781 Bandwidth BANDWIDTH.COM CLEC, LLC - SC 2021-12-14 yes yes
864-832 SOUTH CAROLINA NET, INC. - SC 2005-08-04 yes yes
864-845 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – yes yes
864-846 Windstream PAETEC ITEL, 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
AT&T ENTERPRISES, LLC AT&T 1 16.7%
ONVOY, LLC - SC Onvoy 1 16.7%
BANDWIDTH.COM CLEC, LLC - SC Bandwidth 1 16.7%
SOUTH CAROLINA NET, INC. - SC – 1 16.7%
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL AT&T 1 16.7%
PAETEC ITEL, LLC Windstream 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 PIEDMONT in area code 864?

6 blocks: 625, 740, 781, 832, 845, 846. The table above gives the holder of each.

Which carriers have numbers in PIEDMONT?

AT&T ENTERPRISES, LLC (1 block), ONVOY, LLC - SC (1 block), BANDWIDTH.COM CLEC, LLC - SC (1 block), SOUTH CAROLINA NET, INC. - SC (1 block), BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (1 block), PAETEC ITEL, 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 PIEDMONT 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 864

All 784 prefixes in 864