NumberResearchRecent thousands-block assignments
0 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, all time — NPA 931
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-08-14 | 931-285-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HAMPSHIRE | TN |
| 2024-08-14 | 931-425-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BLANCHE | TN |
| 2024-08-14 | 931-764-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | W VANLEER | TN |
| 2024-05-03 | 931-430-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PALMYRA | TN |
| 2016-11-21 | 931-263-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CLARKSVL | TN |
| 2014-08-25 | 931-905-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CLARKSVL | TN |
| 2013-12-11 | 931-516-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CUMBERLDCY | TN |
| 2013-01-28 | 931-452-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LYNNVILLE | TN |
| 2013-01-28 | 931-675-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PETERSBURG | TN |
| 2011-11-14 | 931-485-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SO GUTHRIE | TN |
| 2011-10-20 | 931-228-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MCEWEN | TN |
| 2011-10-20 | 931-269-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SUMMERTOWN | TN |
| 2011-10-20 | 931-299-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WAVERLY | TN |
| 2011-10-20 | 931-306-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOHENWALD | TN |
| 2011-10-20 | 931-671-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SANTA FE | TN |
| 2011-10-20 | 931-683-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CULLEOKA | TN |
| 2011-10-20 | 931-706-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WILLIAMSPT | TN |
| 2011-10-20 | 931-792-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FLINTVILLE | TN |
| 2011-05-20 | 931-387-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CUNNINGHAM | TN |
| 2011-05-20 | 931-463-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SEWANEE | TN |
| 2011-05-20 | 931-603-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FREDONIA | TN |
| 2011-05-20 | 931-632-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LYNCHBURG | TN |
| 2011-05-20 | 931-807-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NORMANDY | TN |
| 2011-05-20 | 931-810-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HUNTLAND | TN |
| 2011-05-20 | 931-813-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WARTRACE | TN |
| 2010-12-13 | 931-219-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CENTERVL | TN |
| 2010-12-13 | 931-325-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MTPLEASANT | TN |
| 2010-12-13 | 931-820-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SANGO | TN |
| 2010-07-19 | 931-557-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FAYETTEVL | TN |
| 2009-09-25 | 931-954-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MANCHESTER | TN |
| 2009-09-25 | 931-996-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LYLES | TN |
| 2009-07-15 | 931-298-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ELKTON | TN |
| 2009-07-15 | 931-347-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PULASKI | TN |
| 2009-07-15 | 931-634-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DOVER | TN |
| 2009-06-15 | 931-201-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LAWRENCEBG | TN |
| 2009-06-15 | 931-327-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WINCHESTER | TN |
| 2009-06-15 | 931-422-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LEWISBURG | TN |
| 2009-06-15 | 931-492-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SHELBYVL | TN |
| 2009-06-15 | 931-494-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CLARKSVL | TN |
| 2009-06-15 | 931-546-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SOOAKGROVE | TN |
| 2009-06-15 | 931-588-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TULLAHOMA | TN |
| 2009-06-15 | 931-674-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPRINGHILL | TN |
| 2009-06-15 | 931-982-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | COLUMBIA | 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.