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 707
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 |
|---|---|---|---|---|---|---|---|
| 2024-10-08 | 707-243-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | OCCIDENTAL | CA |
| 2024-10-08 | 707-650-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PEPPERWOOD | CA |
| 2024-10-08 | 707-705-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | VALLEYFORD | CA |
| 2024-10-08 | 707-855-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | POTTER VLY | CA |
| 2024-10-07 | 707-203-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ELK | CA |
| 2024-10-07 | 707-353-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | POINTARENA | CA |
| 2024-10-07 | 707-412-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GUALALA | CA |
| 2024-10-07 | 707-598-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LKBERRYESS | CA |
| 2024-10-07 | 707-719-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BLUE LAKE | CA |
| 2024-10-07 | 707-851-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HYDESVILLE | CA |
| 2016-11-16 | 707-715-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | COBB MT | CA |
| 2016-07-15 | 707-305-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | VACAVILLE | CA |
| 2015-01-09 | 707-890-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SANTA ROSA | CA |
| 2014-09-04 | 707-389-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FRFLD-SUIS | CA |
| 2014-07-09 | 707-492-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NAPA | CA |
| 2014-07-09 | 707-641-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | VALLEJO | CA |
| 2013-05-14 | 707-724-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | VACAVILLE | CA |
| 2012-02-01 | 707-706-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ANNAPOLIS | CA |
| 2012-01-13 | 707-521-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SANTA ROSA | CA |
| 2012-01-12 | 707-803-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FRFLD-SUIS | CA |
| 2011-09-14 | 707-682-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FORTUNA | CA |
| 2011-09-14 | 707-901-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BOONVILLE | CA |
| 2011-08-01 | 707-532-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LOLETA | CA |
| 2011-07-28 | 707-506-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | RIO DELL | CA |
| 2011-07-28 | 707-517-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WEOTT | CA |
| 2011-07-28 | 707-602-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MIRANDA | CA |
| 2011-07-28 | 707-809-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MIDDLETOWN | CA |
| 2011-07-28 | 707-879-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOMALES | CA |
| 2011-06-08 | 707-840-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ARCATA | CA |
| 2011-05-16 | 707-273-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | EUREKA | CA |
| 2011-05-16 | 707-900-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LAKEPORT | CA |
| 2011-05-05 | 707-303-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SANTA ROSA | CA |
| 2011-05-04 | 707-244-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ST HELENA | CA |
| 2011-05-04 | 707-275-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | UPPER LAKE | CA |
| 2011-05-04 | 707-279-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | KELSEYVL | CA |
| 2011-05-04 | 707-397-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MENDOCINO | CA |
| 2011-05-04 | 707-403-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CALISTOGA | CA |
| 2011-05-04 | 707-409-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FORT BRAGG | CA |
| 2011-05-04 | 707-415-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | YOUNTVILLE | CA |
| 2011-05-04 | 707-461-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LOWER LAKE | CA |
| 2011-05-04 | 707-500-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NICE | CA |
| 2011-05-04 | 707-520-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MONTE RIO | CA |
| 2011-05-04 | 707-560-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CLERLAOAKS | CA |
| 2011-05-04 | 707-589-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BODEGA BAY | CA |
| 2011-05-04 | 707-604-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GUERNEVL | CA |
| 2011-05-04 | 707-621-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | UKIAH | CA |
| 2011-05-04 | 707-669-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CLOVERDALE | CA |
| 2011-05-04 | 707-670-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOPLAND | CA |
| 2011-05-04 | 707-756-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HEALDSBURG | CA |
| 2011-05-04 | 707-820-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FORESTVL | CA |
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.