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
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Jun 2026
May 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-10-20 | 707-910-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SEBASTOPOL | CA |
| 2021-12-23 | 707-930-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ANNAPOLIS | CA |
| 2019-08-05 | 707-457-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CRESCENTCY | CA |
| 2016-06-24 | 707-305-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VACAVILLE | CA |
| 2016-06-24 | 707-819-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | NAPA | CA |
| 2016-06-22 | 707-308-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2015-10-19 | 707-512-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ST HELENA | CA |
| 2015-07-24 | 707-890-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2015-03-04 | 707-983-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | COVELO | CA |
| 2015-02-17 | 707-378-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RIO VISTA | CA |
| 2015-02-17 | 707-482-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | KLAMATH | CA |
| 2015-02-17 | 707-487-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SMITHRIVER | CA |
| 2015-02-17 | 707-488-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ORICK | CA |
| 2014-09-30 | 707-798-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | EUREKA | CA |
| 2014-08-14 | 707-701-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LOWER LAKE | CA |
| 2014-01-08 | 707-791-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2013-09-05 | 707-800-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2013-07-25 | 707-595-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2013-01-24 | 707-398-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FRFLD-SUIS | CA |
| 2012-11-19 | 707-518-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WILLITS | CA |
| 2012-10-17 | 707-387-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2012-07-17 | 707-392-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VACAVILLE | CA |
| 2012-07-09 | 707-266-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | NAPA | CA |
| 2012-07-09 | 707-285-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PTLM SWIFT | CA |
| 2012-07-09 | 707-674-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VALLEJO | CA |
| 2012-06-28 | 707-800-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2012-05-31 | 707-931-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SONOMA | CA |
| 2012-02-10 | 707-651-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VALLEJO | CA |
| 2012-01-04 | 707-800-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2011-12-15 | 707-560-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CLERLAOAKS | CA |
| 2011-11-17 | 707-999-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VACAVILLE | CA |
| 2011-08-09 | 707-382-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | EUREKA | CA |
| 2011-07-13 | 707-549-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CLERLAOAKS | CA |
| 2011-03-25 | 707-376-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | UKIAH | CA |
| 2011-02-19 | 707-921-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2011-01-11 | 707-200-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ST HELENA | CA |
| 2010-11-09 | 707-563-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VALLEJO | CA |
| 2010-10-29 | 707-595-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2010-01-08 | 707-981-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PTLM MAIN | CA |
| 2009-12-29 | 707-241-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PTLM MAIN | CA |
| 2009-12-07 | 707-284-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2009-09-30 | 707-639-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FRFLD-SUIS | CA |
| 2009-07-29 | 707-921-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2008-08-25 | 707-408-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | KENWOOD | CA |
| 2008-08-04 | 707-825-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ARCATA | CA |
| 2008-07-08 | 707-304-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2008-07-08 | 707-331-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ROSA | CA |
| 2008-05-07 | 707-879-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | TOMALES | CA |
| 2008-05-06 | 707-385-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | HEALDSBURG | CA |
| 2008-04-14 | 707-766-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PTLM MAIN | 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.