NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 509
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-08-23 | 509-867-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2016-09-27 | 509-558-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2016-08-01 | 509-558-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2016-08-01 | 509-558-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2016-08-01 | 509-558-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2016-08-01 | 509-558-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2014-12-01 | 509-598-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2014-07-24 | 509-367-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | YAKIMA | WA |
| 2014-06-23 | 509-319-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2013-05-02 | 509-578-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | RICHLAND | WA |
| 2013-04-30 | 509-412-7XXX | 7000–7999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | PASCO | WA |
| 2013-04-30 | 509-491-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | KENNEWICK | WA |
| 2012-07-09 | 509-424-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | YAKIMA | WA |
| 2012-05-18 | 509-822-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2011-03-31 | 509-759-7XXX | 7000–7999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | YAKIMA | WA |
| 2010-06-17 | 509-795-7XXX | 7000–7999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2010-02-23 | 509-795-8XXX | 8000–8999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2009-09-09 | 509-853-0XXX | 0000–0999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | YAKIMA | WA |
| 2009-08-17 | 509-321-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
| 2007-02-09 | 509-853-1XXX | 1000–1999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | YAKIMA | WA |
| 2006-10-31 | 509-321-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SPOKANE | WA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.