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 |
|---|---|---|---|---|---|---|---|
| 2014-08-07 | 931-553-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLARKSVL | TN |
| 2014-07-15 | 931-674-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF TENNESSEE, LLC - TN | 7517 | SPRINGHILL | TN |
| 2014-07-07 | 931-548-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | COLUMBIA | TN |
| 2014-07-07 | 931-572-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLARKSVL | TN |
| 2014-07-02 | 931-304-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | MCMINNVL | TN |
| 2014-07-02 | 931-304-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | MCMINNVL | TN |
| 2014-06-16 | 931-347-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | PULASKI | TN |
| 2014-06-13 | 931-208-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MCEWEN | TN |
| 2014-05-27 | 931-300-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LAWRENCEBG | TN |
| 2014-05-01 | 931-250-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | CROSSVILLE | TN |
| 2014-03-26 | 931-208-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MCEWEN | TN |
| 2014-03-26 | 931-701-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LYLES | TN |
| 2014-03-18 | 931-219-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CENTERVL | TN |
| 2014-03-12 | 931-300-5XXX | 5000–5999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | LAWRENCEBG | TN |
| 2014-03-12 | 931-300-6XXX | 6000–6999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | LAWRENCEBG | TN |
| 2014-03-12 | 931-300-9XXX | 9000–9999 | Assigned | POWERTEL NASHVILLE LICENSES, INC. | 7476 | LAWRENCEBG | TN |
| 2014-03-10 | 931-551-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLARKSVL | TN |
| 2014-03-10 | 931-553-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CLARKSVL | TN |
| 2014-03-10 | 931-981-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | COLUMBIA | TN |
| 2014-02-26 | 931-214-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | GAINESBORO | TN |
| 2014-02-25 | 931-295-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | HOHENWALD | TN |
| 2014-02-24 | 931-255-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | BAXTER | TN |
| 2014-02-24 | 931-255-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | BAXTER | TN |
| 2014-02-20 | 931-288-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LEWISBURG | TN |
| 2014-02-20 | 931-295-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HOHENWALD | TN |
| 2014-02-20 | 931-298-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ELKTON | TN |
| 2014-02-20 | 931-299-1XXX | 1000–1999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WAVERLY | TN |
| 2014-02-20 | 931-300-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LAWRENCEBG | TN |
| 2014-02-20 | 931-305-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DOVER | TN |
| 2014-02-20 | 931-325-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MTPLEASANT | TN |
| 2014-02-20 | 931-326-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PALMYRA | TN |
| 2014-02-20 | 931-387-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CUNNINGHAM | TN |
| 2014-02-20 | 931-447-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PULASKI | TN |
| 2014-02-20 | 931-452-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LYNNVILLE | TN |
| 2014-02-20 | 931-477-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SUMMERTOWN | TN |
| 2014-02-20 | 931-603-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FREDONIA | TN |
| 2014-02-20 | 931-671-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SANTA FE | TN |
| 2014-02-20 | 931-674-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SPRINGHILL | TN |
| 2014-02-20 | 931-706-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WILLIAMSPT | TN |
| 2014-02-20 | 931-764-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | W VANLEER | TN |
| 2014-02-20 | 931-805-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HAMPSHIRE | TN |
| 2014-02-20 | 931-820-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SANGO | TN |
| 2014-02-19 | 931-219-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CENTERVL | TN |
| 2014-02-19 | 931-240-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FAYETTEVL | TN |
| 2014-02-19 | 931-313-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WINCHESTER | TN |
| 2014-02-19 | 931-354-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | FLINTVILLE | TN |
| 2014-02-19 | 931-408-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | TULLAHOMA | TN |
| 2014-02-19 | 931-463-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SEWANEE | TN |
| 2014-02-19 | 931-492-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SHELBYVL | TN |
| 2014-02-19 | 931-516-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CUMBERLDCY | 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.