OAK RIDGE prefixes in area code 865
NANPA records 21 assigned NXX blocks to rate center OAK RIDGE in area code 865, 4.2% of the 506 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 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (6), TELEPORT COMMUNICATIONS AMERICA, LLC - TN (6), PAETEC ITEL, LLC (3). The earliest assignment on record here is 2001-09-18 and the most recent 2026-07-20. 14 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 318, 573 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 865-220 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 865-241 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TN | – | no | yes |
| 865-272 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TN | – | yes | yes |
| 865-275 | INTRADO COMMUNICATIONS, LLC | 2002-02-21 | yes | yes |
| 865-276 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 865-294 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | – | yes | yes |
| 865-298 | Windstream PAETEC ITEL, LLC | 2001-09-18 | yes | yes |
| 865-303 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 2024-04-24 | yes | yes |
| 865-341 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 2018-08-30 | yes | yes |
| 865-425 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 865-434 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 2024-04-24 | yes | yes |
| 865-481 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 865-482 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 865-483 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 865-515 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 2026-07-20 | yes | no |
| 865-535 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TN | – | yes | yes |
| 865-574 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TN | – | no | yes |
| 865-576 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TN | – | no | yes |
| 865-685 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TN | 2002-04-30 | yes | yes |
| 865-813 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 865-835 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 2006-02-28 | 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
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | AT&T | 6 | 28.6% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - TN | AT&T | 6 | 28.6% |
| PAETEC ITEL, LLC | Windstream | 3 | 14.3% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | Verizon | 3 | 14.3% |
| LEVEL 3 COMMUNICATIONS, LLC - TN | Lumen | 2 | 9.5% |
| INTRADO COMMUNICATIONS, LLC | – | 1 | 4.8% |
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 OAK RIDGE in area code 865?
21 blocks: 220, 241, 272, 275, 276, 294, 298, 303, 341, 425, 434, 481 and 9 more, all listed in the table above.
Which carriers have numbers in OAK RIDGE?
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (6 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - TN (6 blocks), PAETEC ITEL, LLC (3 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - TN (2 blocks), INTRADO COMMUNICATIONS, 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 OAK RIDGE 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.