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 |
|---|---|---|---|---|---|---|---|
| 2017-08-30 | 615-526-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | OLDHICKORY | TN |
| 2017-08-01 | 615-814-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | FRANKLIN | TN |
| 2017-07-20 | 615-470-6XXX | 6000–6999 | Assigned | LEVEL 3 TELECOM OF TENNESSEE, LLC - TN | 7517 | LEBANON | TN |
| 2017-07-13 | 615-762-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | NASHVILLE | TN |
| 2017-06-26 | 615-729-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SPRINGFLD | TN |
| 2017-06-23 | 615-762-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2017-06-23 | 615-762-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2017-06-23 | 615-814-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | FRANKLIN | TN |
| 2017-06-13 | 615-580-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | SMITHVILLE | TN |
| 2017-06-07 | 615-265-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | HENDERSNVL | TN |
| 2017-06-07 | 615-814-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TN | 525E | FRANKLIN | TN |
| 2017-05-23 | 615-819-3XXX | 3000–3999 | Assigned | UNITED TELEPHONE COMPANY DBA UNITED COMMUNICATIONS | 0581 | NOLENSVL | TN |
| 2017-05-23 | 615-819-7XXX | 7000–7999 | Assigned | UNITED TELEPHONE COMPANY DBA UNITED COMMUNICATIONS | 0581 | NOLENSVL | TN |
| 2017-05-23 | 615-819-8XXX | 8000–8999 | Assigned | UNITED TELEPHONE COMPANY DBA UNITED COMMUNICATIONS | 0581 | NOLENSVL | TN |
| 2017-05-23 | 615-819-9XXX | 9000–9999 | Assigned | UNITED TELEPHONE COMPANY DBA UNITED COMMUNICATIONS | 0581 | NOLENSVL | TN |
| 2017-05-09 | 615-814-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | FRANKLIN | TN |
| 2017-05-04 | 615-619-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | PLEASANTVW | TN |
| 2017-05-03 | 615-338-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | HENDERSNVL | TN |
| 2017-05-03 | 615-436-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SPENCERMIL | TN |
| 2017-04-28 | 615-270-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | EASTSANGO | TN |
| 2017-04-25 | 615-436-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | SPENCERMIL | TN |
| 2017-04-25 | 615-510-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | ASHLAND CY | TN |
| 2017-04-25 | 615-570-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | DICKSON | TN |
| 2017-04-25 | 615-616-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | WHITEHOUSE | TN |
| 2017-04-25 | 615-805-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | PORTLAND | TN |
| 2017-04-24 | 615-757-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7977 | HENDERSNVL | TN |
| 2017-04-19 | 615-583-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | MT JULIET | TN |
| 2017-03-20 | 615-729-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | SPRINGFLD | TN |
| 2017-03-17 | 615-235-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | LEBANON | TN |
| 2017-03-17 | 615-281-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | CARTHAGE | TN |
| 2017-03-17 | 615-575-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | GALLATIN | TN |
| 2017-03-17 | 615-716-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | FRANKLIN | TN |
| 2017-03-17 | 615-757-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | HENDERSNVL | TN |
| 2017-03-17 | 615-808-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | HARTSVILLE | TN |
| 2017-03-17 | 615-821-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | SMYRNA | TN |
| 2017-03-17 | 615-894-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | OLDHICKORY | TN |
| 2017-03-17 | 615-903-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | LAVERGNE | TN |
| 2017-03-01 | 615-755-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | OLDHICKORY | TN |
| 2017-02-22 | 615-307-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SOFREDONIA | TN |
| 2017-02-22 | 615-392-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | NSPRINGHIL | TN |
| 2017-01-30 | 615-857-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CHARLOTTE | TN |
| 2017-01-24 | 615-492-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | VANLEER | TN |
| 2016-12-28 | 615-288-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MT JULIET | TN |
| 2016-11-16 | 615-762-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2016-11-16 | 615-762-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2016-11-16 | 615-762-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2016-11-14 | 615-902-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2016-11-08 | 615-581-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | WHITEHOUSE | TN |
| 2016-11-07 | 615-762-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2016-11-02 | 615-894-3XXX | 3000–3999 | 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.