NumberResearchRecent thousands-block assignments
5 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 731
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 |
|---|---|---|---|---|---|---|---|
| 2021-06-11 | 731-529-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | MICHIE | TN |
| 2021-05-26 | 731-330-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF TENNESSEE, LLC - TN | 276F | TRENTON | TN |
| 2021-05-25 | 731-252-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | BRUCETON | TN |
| 2021-05-24 | 731-630-8XXX | 8000–8999 | Assigned | STRATUS NETWORKS | 495J | BROWNSVL | TN |
| 2021-05-19 | 731-361-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF TENNESSEE, LLC - TN | 276F | BOLIVAR | TN |
| 2021-05-19 | 731-931-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF TENNESSEE, LLC - TN | 276F | DYERSBURG | TN |
| 2021-05-15 | 731-961-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | BELLS | TN |
| 2021-04-22 | 731-200-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | TRENTON | TN |
| 2021-04-22 | 731-200-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | TRENTON | TN |
| 2021-04-22 | 731-200-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | TRENTON | TN |
| 2021-04-22 | 731-200-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | TRENTON | TN |
| 2021-04-22 | 731-258-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | KENTON | TN |
| 2021-04-22 | 731-258-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | KENTON | TN |
| 2021-04-22 | 731-258-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | KENTON | TN |
| 2021-04-22 | 731-258-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | KENTON | TN |
| 2021-04-22 | 731-289-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | MEDINA | TN |
| 2021-04-22 | 731-310-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | TROY | TN |
| 2021-04-22 | 731-312-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | CEDARGROVE | TN |
| 2021-04-22 | 731-315-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | ADAMSVILLE | TN |
| 2021-04-22 | 731-699-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | DRESDEN | TN |
| 2021-04-22 | 731-703-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | SHARON | TN |
| 2021-04-22 | 731-703-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | SHARON | TN |
| 2021-04-16 | 731-931-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2021-04-05 | 731-666-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF TENNESSEE, LLC - TN | 276F | CAMDEN | TN |
| 2021-03-19 | 731-290-1XXX | 1000–1999 | Assigned | STRATUS NETWORKS | 495J | BETHEL SPG | TN |
| 2021-03-11 | 731-800-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | LEXINGTON | TN |
| 2021-03-11 | 731-800-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | LEXINGTON | TN |
| 2021-03-11 | 731-858-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | SARDIS | TN |
| 2021-03-11 | 731-858-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | SARDIS | TN |
| 2021-03-08 | 731-206-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | SCOTTSHILL | TN |
| 2021-03-08 | 731-206-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | SCOTTSHILL | TN |
| 2021-03-08 | 731-251-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | DECATURVL | TN |
| 2021-03-08 | 731-251-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | DECATURVL | TN |
| 2021-03-08 | 731-252-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | BRUCETON | TN |
| 2021-03-08 | 731-252-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | BRUCETON | TN |
| 2021-03-08 | 731-257-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | PARSONS | TN |
| 2021-03-08 | 731-257-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | PARSONS | TN |
| 2021-02-16 | 731-214-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | CEDARGROVE | TN |
| 2021-02-16 | 731-248-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | GIBSON | TN |
| 2021-02-16 | 731-274-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | SIDONIA | TN |
| 2021-02-16 | 731-275-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | PALMERSVL | TN |
| 2021-02-16 | 731-276-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | LATHAM | TN |
| 2021-02-16 | 731-280-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | SHILOH | TN |
| 2021-02-16 | 731-283-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | DYER | TN |
| 2021-02-16 | 731-284-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | HORNBEAK | TN |
| 2021-02-16 | 731-309-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | MILLEDGEVL | TN |
| 2021-02-16 | 731-310-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | TROY | TN |
| 2021-02-16 | 731-315-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | ADAMSVILLE | TN |
| 2021-02-16 | 731-330-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | TRENTON | TN |
| 2021-02-16 | 731-393-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | MCKENZIE | 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.