NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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, all time — 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 |
|---|---|---|---|---|---|---|---|
| 2023-05-24 | 615-759-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | KINGSTNSPG | TN |
| 2023-04-20 | 615-621-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2023-04-20 | 615-621-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2023-04-20 | 615-621-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2023-04-20 | 615-621-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2023-04-14 | 615-996-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | TN |
| 2023-04-14 | 615-996-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | TN |
| 2023-04-14 | 615-996-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | TN |
| 2023-04-14 | 615-996-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | TN |
| 2023-04-14 | 615-996-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | TN |
| 2023-04-14 | 615-996-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | TN |
| 2022-10-17 | 615-899-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALLATIN | TN |
| 2022-10-17 | 615-899-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALLATIN | TN |
| 2022-10-17 | 615-899-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALLATIN | TN |
| 2020-11-06 | 615-845-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | ASHLAND CY | TN |
| 2020-07-14 | 615-575-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALLATIN | 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 |
| 2016-10-18 | 615-471-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | LAVERGNE | TN |
| 2016-08-16 | 615-922-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2016-08-03 | 615-701-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | MT JULIET | TN |
| 2016-07-19 | 615-814-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | TN |
| 2016-05-05 | 615-600-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2016-02-01 | 615-265-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | HENDERSNVL | TN |
| 2015-10-28 | 615-716-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | TN |
| 2015-10-20 | 615-808-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | HARTSVILLE | TN |
| 2015-10-01 | 615-546-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | MURFREESBO | TN |
| 2015-09-02 | 615-991-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | HENDERSNVL | TN |
| 2015-08-28 | 615-608-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | OLDHICKORY | TN |
| 2015-08-28 | 615-675-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALLATIN | TN |
| 2015-08-11 | 615-922-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2015-08-04 | 615-863-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | GREENBRIER | TN |
| 2015-07-29 | 615-930-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | SMYRNA | TN |
| 2015-07-23 | 615-721-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | TN |
| 2015-05-27 | 615-991-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | HENDERSNVL | TN |
| 2015-05-19 | 615-546-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | MURFREESBO | TN |
| 2015-05-06 | 615-540-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2015-04-14 | 615-588-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | CARTHAGE | TN |
| 2015-03-11 | 615-266-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | FAIRVIEW | TN |
| 2015-03-06 | 615-994-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | LEBANON | TN |
| 2015-02-20 | 615-645-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2014-12-19 | 615-992-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | GOODLETSVL | TN |
| 2014-12-16 | 615-560-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | DICKSON | TN |
| 2014-12-02 | 615-928-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2014-11-19 | 615-580-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | SMITHVILLE | TN |
| 2014-10-10 | 615-721-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | TN |
| 2014-09-23 | 615-645-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHVILLE | TN |
| 2014-09-15 | 615-667-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | SPRINGFLD | TN |
| 2014-09-10 | 615-288-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MT JULIET | TN |
| 2014-08-19 | 615-905-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | TN |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.