NumberResearchRecent prefix assignments
371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
New assignments by month
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 931-506 | CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC | 4336 | MCMINNVL | TN | |
| 931-507 | BEN LOMAND COMMUNICATIONS, INC. | 4586 | MCMINNVL | TN | |
| 931-510 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | COOKEVILLE | TN | |
| 931-511 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | TN | |
| 931-520 | CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC | 4336 | COOKEVILLE | TN | |
| 931-525 | CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC | 4336 | COOKEVILLE | TN | |
| 931-526 | CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC | 4336 | COOKEVILLE | TN | |
| 931-527 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | LYNNVILLE | TN | |
| 931-528 | CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC | 4336 | COOKEVILLE | TN | |
| 931-529 | POWERTEL NASHVILLE LICENSES, INC. | 7476 | COOKEVILLE | TN | |
| 931-534 | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | DOVER | TN | |
| 931-535 | HUMPHREYS COUNTY TEL. CO. | 0566 | NEWJHNSNVL | TN | |
| 931-536 | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | SHELBYVL | TN | |
| 931-537 | CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC | 4336 | COOKEVILLE | TN | |
| 931-538 | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | CLARKSVL | TN | |
| 931-540 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | COLUMBIA | TN | |
| 931-542 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | CLARKSVL | TN | |
| 931-544 | UNITED STATES CELLULAR - TN | 6278 | COOKEVILLE | TN | |
| 931-545 | UNITED STATES CELLULAR - TN | 6278 | COOKEVILLE | TN | |
| 931-546 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | SOOAKGROVE | TN | |
| 931-548 | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | COLUMBIA | TN | |
| 931-551 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | CLARKSVL | TN | |
| 931-552 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | CLARKSVL | TN | |
| 931-553 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | CLARKSVL | TN | |
| 931-555 | MULTIPLE OCN LISTING | MULT | DIR ASST | TN | |
| 931-556 | LORETTO TEL. CO., INC. | 0570 | FIVEPOINTS | TN | |
| 931-557 | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | FAYETTEVL | TN | |
| 931-559 | TWIN LAKES COMMUNICATIONS, INC. - TN | 204G | COOKEVILLE | TN | |
| 931-560 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | COLUMBIA | TN | |
| 931-561 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN | |
| 931-563 | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | TULLAHOMA | TN | |
| 931-565 | ARDMORE TEL. CO., INC. | 0280 | MINOR HILL | TN | |
| 931-572 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | CLARKSVL | TN | |
| 931-576 | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | WILLIAMSPT | TN | |
| 931-580 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | SHELBYVL | TN | |
| 931-581 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | TULLAHOMA | TN | |
| 931-582 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MCEWEN | TN | |
| 931-583 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | WILLIAMSPT | TN | |
| 931-589 | TENNESSEE TEL. CO. | 0575 | LINDEN | TN | |
| 931-591 | POWERTEL NASHVILLE LICENSES, INC. | 7476 | CLARKSVL | TN | |
| 931-592 | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | TRACY CITY | TN | |
| 931-593 | TENNESSEE TEL. CO. | 0575 | LOBELVILLE | TN | |
| 931-596 | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | HILLSBORO | TN | |
| 931-598 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | SEWANEE | TN | |
| 931-600 | ONVOY, LLC - TN | 525E | COLLINWOOD | TN | |
| 931-607 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | SHELBYVL | TN | |
| 931-611 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | TN | |
| 931-615 | TN | ||||
| 931-619 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | SHELBYVL | TN | |
| 931-621 | TWIN LAKES TEL. COOP. CORP. | 0579 | NORTH SPG | TN |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.