NumberResearchRecent thousands-block assignments
7 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 615
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 |
|---|---|---|---|---|---|---|---|
| 2018-03-07 | 615-205-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | GREENBRIER | TN |
| 2018-03-07 | 615-258-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | NASHVILLE | TN |
| 2018-03-07 | 615-258-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | NASHVILLE | TN |
| 2018-03-07 | 615-258-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | NASHVILLE | TN |
| 2018-03-07 | 615-258-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | NASHVILLE | TN |
| 2018-03-07 | 615-302-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | NSPRINGHIL | TN |
| 2018-03-07 | 615-401-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | NASHVILLE | TN |
| 2018-03-07 | 615-510-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | ASHLAND CY | TN |
| 2018-03-07 | 615-560-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | DICKSON | TN |
| 2018-03-07 | 615-709-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | CARTHAGE | TN |
| 2018-03-07 | 615-733-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | NASHVILLE | TN |
| 2018-03-07 | 615-733-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | NASHVILLE | TN |
| 2018-03-07 | 615-813-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | CRSPLORLND | TN |
| 2018-02-22 | 615-237-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TN | 525E | WATERTOWN | TN |
| 2018-02-22 | 615-412-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | SPENCERMIL | TN |
| 2018-02-22 | 615-685-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | SOFREDONIA | TN |
| 2018-02-22 | 615-729-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | SPRINGFLD | TN |
| 2018-02-22 | 615-764-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | FRANKLIN | TN |
| 2018-02-22 | 615-819-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | NOLENSVL | TN |
| 2018-02-22 | 615-819-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | NOLENSVL | TN |
| 2018-02-22 | 615-857-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | CHARLOTTE | TN |
| 2018-02-22 | 615-908-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | WHITEBLUFF | TN |
| 2018-02-14 | 615-455-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SCUNNINGHA | TN |
| 2018-02-08 | 615-821-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SMYRNA | TN |
| 2018-02-08 | 615-821-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SMYRNA | TN |
| 2018-02-06 | 615-541-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | OLDHICKORY | TN |
| 2018-02-05 | 615-235-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | LEBANON | TN |
| 2018-02-05 | 615-265-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | HENDERSNVL | TN |
| 2018-02-05 | 615-619-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | PLEASANTVW | TN |
| 2018-02-05 | 615-814-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TN | 525E | FRANKLIN | TN |
| 2018-02-05 | 615-821-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | SMYRNA | TN |
| 2018-02-05 | 615-894-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | OLDHICKORY | TN |
| 2018-01-19 | 615-359-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | LAFAYETTE | TN |
| 2018-01-17 | 615-392-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | NSPRINGHIL | TN |
| 2018-01-16 | 615-205-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TN | 525E | GREENBRIER | TN |
| 2018-01-11 | 615-570-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | DICKSON | TN |
| 2018-01-11 | 615-570-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | DICKSON | TN |
| 2018-01-11 | 615-570-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | DICKSON | TN |
| 2017-12-12 | 615-709-1XXX | 1000–1999 | Assigned | NORTH CENTRAL COMMUNICATIONS, INC. - TN | 656H | CARTHAGE | TN |
| 2017-11-30 | 615-561-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | LAFAYETTE | TN |
| 2017-11-20 | 615-231-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | NASHVILLE | TN |
| 2017-11-20 | 615-769-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | NASHVILLE | TN |
| 2017-11-15 | 615-762-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | NASHVILLE | TN |
| 2017-11-15 | 615-814-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | FRANKLIN | TN |
| 2017-10-18 | 615-894-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | OLDHICKORY | TN |
| 2017-09-27 | 615-588-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CARTHAGE | TN |
| 2017-09-21 | 615-769-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | NASHVILLE | TN |
| 2017-09-21 | 615-902-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | NASHVILLE | TN |
| 2017-09-21 | 615-902-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | NASHVILLE | TN |
| 2017-09-06 | 615-526-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | OLDHICKORY | 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.