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
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-09-21 | 615-527-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GALLATIN | TN |
| 2016-09-19 | 615-470-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LEBANON | TN |
| 2015-10-09 | 615-991-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HENDERSNVL | TN |
| 2015-09-02 | 615-930-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SMYRNA | TN |
| 2015-06-11 | 615-540-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NASHVILLE | TN |
| 2015-04-23 | 615-721-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FRANKLIN | TN |
| 2015-01-08 | 615-928-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NASHVILLE | TN |
| 2014-08-14 | 615-928-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NASHVILLE | TN |
| 2014-04-28 | 615-679-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NASHVILLE | TN |
| 2014-03-25 | 615-203-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MURFREESBO | TN |
| 2013-11-15 | 615-920-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NASHVILLE | TN |
| 2013-02-28 | 615-647-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NASHVILLE | TN |
| 2011-10-20 | 615-722-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | EAGLEVILLE | TN |
| 2011-09-06 | 615-953-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NASHVILLE | TN |
| 2011-07-05 | 615-455-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SCUNNINGHA | TN |
| 2011-05-20 | 615-307-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SOFREDONIA | TN |
| 2011-05-20 | 615-379-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CRSPLORLND | TN |
| 2011-05-20 | 615-486-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CARTHAGE | TN |
| 2011-05-20 | 615-592-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TRIUNE | TN |
| 2011-05-20 | 615-680-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HARTSVILLE | TN |
| 2011-05-20 | 615-682-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ADMSCDARHL | TN |
| 2011-05-20 | 615-697-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WATERTOWN | TN |
| 2011-02-23 | 615-492-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | VANLEER | TN |
| 2010-12-15 | 615-505-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | EASTSANGO | TN |
| 2010-12-13 | 615-671-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CHARLOTTE | TN |
| 2010-09-10 | 615-649-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NASHVILLE | TN |
| 2010-01-12 | 615-894-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | OLDHICKORY | TN |
| 2010-01-07 | 615-845-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ASHLAND CY | TN |
| 2009-09-25 | 615-266-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FAIRVIEW | TN |
| 2009-09-25 | 615-285-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WHITEHOUSE | TN |
| 2009-09-25 | 615-412-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPENCERMIL | TN |
| 2009-09-25 | 615-745-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PORTLAND | TN |
| 2009-09-25 | 615-787-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WHITEBLUFF | TN |
| 2009-09-25 | 615-863-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GREENBRIER | TN |
| 2009-09-25 | 615-952-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | KINGSTNSPG | TN |
| 2009-06-17 | 615-985-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPRINGFLD | TN |
| 2009-06-15 | 615-375-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DICKSON | TN |
| 2009-06-15 | 615-392-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NSPRINGHIL | TN |
| 2009-06-15 | 615-398-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PLEASANTVW | TN |
| 2009-06-15 | 615-614-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FRANKLIN | TN |
| 2009-06-15 | 615-675-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GALLATIN | TN |
| 2009-06-15 | 615-757-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HENDERSNVL | TN |
| 2009-06-15 | 615-766-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GOODLETSVL | TN |
| 2009-06-15 | 615-768-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SMYRNA | TN |
| 2009-06-15 | 615-965-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LEBANON | TN |
| 2009-06-04 | 615-624-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MURFREESBO | TN |
| 2009-06-02 | 615-964-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NASHVILLE | 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.