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 |
|---|---|---|---|---|---|---|---|
| 2016-01-15 | 931-771-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | SOOAKGROVE | TN |
| 2016-01-14 | 931-717-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | BLANCHE | TN |
| 2016-01-12 | 931-214-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | GAINESBORO | TN |
| 2016-01-12 | 931-278-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLARKSVL | TN |
| 2016-01-08 | 931-740-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | NORMANDY | TN |
| 2016-01-04 | 931-634-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | DOVER | TN |
| 2015-12-22 | 931-288-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7977 | LEWISBURG | TN |
| 2015-12-22 | 931-333-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | TRACY CITY | TN |
| 2015-12-16 | 931-263-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | CLARKSVL | TN |
| 2015-12-16 | 931-263-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | CLARKSVL | TN |
| 2015-12-15 | 931-254-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SPENCER | TN |
| 2015-12-04 | 931-250-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CROSSVILLE | TN |
| 2015-12-03 | 931-401-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLARKSVL | TN |
| 2015-11-18 | 931-716-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CENTERVL | TN |
| 2015-10-22 | 931-503-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7977 | CLARKSVL | TN |
| 2015-10-20 | 931-354-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | FLINTVILLE | TN |
| 2015-10-19 | 931-223-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLUMBIA | TN |
| 2015-10-09 | 931-412-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | WAVERLY | TN |
| 2015-10-09 | 931-814-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | PETERSBURG | TN |
| 2015-10-07 | 931-234-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | OLD ZION | TN |
| 2015-10-07 | 931-318-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | VIOLA | TN |
| 2015-10-07 | 931-331-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ROCKISLAND | TN |
| 2015-10-07 | 931-352-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | DOYLE | TN |
| 2015-10-07 | 931-402-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | DIBRELL | TN |
| 2015-10-07 | 931-406-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BONDECROFT | TN |
| 2015-10-07 | 931-407-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BEERSHEBA | TN |
| 2015-10-07 | 931-954-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MANCHESTER | TN |
| 2015-10-05 | 931-401-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLARKSVL | TN |
| 2015-10-01 | 931-202-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | CROSSVILLE | TN |
| 2015-10-01 | 931-230-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | HOHENWALD | TN |
| 2015-10-01 | 931-240-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | FAYETTEVL | TN |
| 2015-10-01 | 931-288-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | LEWISBURG | TN |
| 2015-10-01 | 931-301-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LAAGER | TN |
| 2015-10-01 | 931-304-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MCMINNVL | TN |
| 2015-10-01 | 931-313-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | WINCHESTER | TN |
| 2015-10-01 | 931-317-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MONTEAGLE | TN |
| 2015-10-01 | 931-330-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | ELKTON | TN |
| 2015-10-01 | 931-387-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | CUNNINGHAM | TN |
| 2015-10-01 | 931-400-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | COOKEVILLE | TN |
| 2015-10-01 | 931-452-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | LYNNVILLE | TN |
| 2015-10-01 | 931-463-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | SEWANEE | TN |
| 2015-10-01 | 931-477-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | SUMMERTOWN | TN |
| 2015-10-01 | 931-534-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | DOVER | TN |
| 2015-10-01 | 931-536-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | SHELBYVL | TN |
| 2015-10-01 | 931-632-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | LYNCHBURG | TN |
| 2015-10-01 | 931-671-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | SANTA FE | TN |
| 2015-10-01 | 931-709-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | W VANLEER | TN |
| 2015-10-01 | 931-729-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | CENTERVL | TN |
| 2015-10-01 | 931-774-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | MTPLEASANT | TN |
| 2015-10-01 | 931-807-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | NORMANDY | 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.