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

OLDHICKORY prefixes in area code 615

NANPA records 11 assigned NXX blocks to rate center OLDHICKORY in area code 615, 1.4% of the 781 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. 7 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - TN (2), PAETEC ITEL, LLC (2), ONVOY, LLC - TN (2). The earliest assignment on record here is 2001-10-04 and the most recent 2010-01-11. 10 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 629 – overlay codes cover the same geography, so a rate center is served by all of them.

11 assigned blocks – 1.4% of 615
7 holders of record
10 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
615-240 Lumen LEVEL 3 COMMUNICATIONS, LLC - TN – yes yes
615-357 Lumen LEVEL 3 COMMUNICATIONS, LLC - TN – yes yes
615-475 Windstream PAETEC ITEL, LLC – yes yes
615-526 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN – yes yes
615-530 Onvoy ONVOY, LLC - TN 2006-11-27 yes yes
615-541 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
615-608 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TN – yes yes
615-704 Onvoy ONVOY, LLC - TN – yes yes
615-755 Windstream PAETEC ITEL, LLC 2001-10-04 yes yes
615-847 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – no yes
615-894 AT&T AT&T ENTERPRISES, LLC 2010-01-11 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
LEVEL 3 COMMUNICATIONS, LLC - TN Lumen 2 18.2%
PAETEC ITEL, LLC Windstream 2 18.2%
ONVOY, LLC - TN Onvoy 2 18.2%
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL AT&T 2 18.2%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN Verizon 1 9.1%
TELEPORT COMMUNICATIONS AMERICA, LLC - TN AT&T 1 9.1%
AT&T ENTERPRISES, LLC AT&T 1 9.1%

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 OLDHICKORY in area code 615?

11 blocks: 240, 357, 475, 526, 530, 541, 608, 704, 755, 847, 894. The table above gives the holder of each.

Which carriers have numbers in OLDHICKORY?

LEVEL 3 COMMUNICATIONS, LLC - TN (2 blocks), PAETEC ITEL, LLC (2 blocks), ONVOY, LLC - TN (2 blocks), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - TN (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is OLDHICKORY 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 615

All 781 prefixes in 615