NumberResearchRecent thousands-block assignments
15 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, last 30 days — NPA 931
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-04-26 | 931-871-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LIVINGSTON | TN |
| 2017-04-25 | 931-288-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | LEWISBURG | TN |
| 2017-04-25 | 931-536-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | SHELBYVL | TN |
| 2017-04-25 | 931-616-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | MANCHESTER | TN |
| 2017-04-25 | 931-632-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | LYNCHBURG | TN |
| 2017-04-25 | 931-634-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | DOVER | TN |
| 2017-04-25 | 931-701-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | LYLES | TN |
| 2017-04-25 | 931-716-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | CENTERVL | TN |
| 2017-04-13 | 931-272-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLARKSVL | TN |
| 2017-03-22 | 931-272-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | CLARKSVL | TN |
| 2017-03-22 | 931-324-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | LAWRENCEBG | TN |
| 2017-03-17 | 931-240-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | FAYETTEVL | TN |
| 2017-03-17 | 931-283-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | WINCHESTER | TN |
| 2017-03-17 | 931-286-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | COLUMBIA | TN |
| 2017-03-17 | 931-371-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | PULASKI | TN |
| 2017-03-17 | 931-800-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | TULLAHOMA | TN |
| 2017-03-01 | 931-291-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | CLARKSVL | TN |
| 2017-02-28 | 931-828-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ETHRIDGE | TN |
| 2017-02-24 | 931-843-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LORETTO | TN |
| 2017-02-24 | 931-846-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ST JOSEPH | TN |
| 2017-02-24 | 931-851-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LEOMA | TN |
| 2017-02-24 | 931-888-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | WAVERLY | TN |
| 2017-02-21 | 931-534-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | DOVER | TN |
| 2017-02-13 | 931-534-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | DOVER | TN |
| 2017-02-09 | 931-291-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CLARKSVL | TN |
| 2017-02-09 | 931-291-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CLARKSVL | TN |
| 2017-02-09 | 931-291-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CLARKSVL | TN |
| 2017-02-08 | 931-291-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | CLARKSVL | TN |
| 2017-02-08 | 931-536-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | SHELBYVL | TN |
| 2017-01-25 | 931-477-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SUMMERTOWN | TN |
| 2017-01-18 | 931-291-0XXX | 0000–0999 | Assigned | JACKSON ENERGY AUTHORITY - TN | 150G | CLARKSVL | TN |
| 2017-01-11 | 931-386-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7977 | WINCHESTER | TN |
| 2017-01-03 | 931-505-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | COLUMBIA | TN |
| 2016-12-01 | 931-263-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLARKSVL | TN |
| 2016-11-30 | 931-814-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | PETERSBURG | TN |
| 2016-11-21 | 931-263-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CLARKSVL | TN |
| 2016-10-31 | 931-408-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | TULLAHOMA | TN |
| 2016-10-19 | 931-709-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | W VANLEER | TN |
| 2016-10-11 | 931-286-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | COLUMBIA | TN |
| 2016-10-06 | 931-254-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | SPENCER | TN |
| 2016-10-05 | 931-207-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | PULASKI | TN |
| 2016-09-28 | 931-202-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CROSSVILLE | TN |
| 2016-09-27 | 931-286-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | COLUMBIA | TN |
| 2016-09-16 | 931-202-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CROSSVILLE | TN |
| 2016-09-16 | 931-400-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | COOKEVILLE | TN |
| 2016-09-08 | 931-412-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | WAVERLY | TN |
| 2016-07-29 | 931-701-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LYLES | TN |
| 2016-07-19 | 931-263-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CLARKSVL | TN |
| 2016-06-30 | 931-263-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | CLARKSVL | TN |
| 2016-06-23 | 931-313-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | WINCHESTER | TN |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.