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 503
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 |
|---|---|---|---|---|---|---|---|
| 2015-01-05 | 503-878-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | STFRD-SNDY | OR |
| 2014-04-18 | 503-917-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | DALLAS | OR |
| 2013-11-19 | 503-594-8XXX | 8000–8999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CLACKAMAS | OR |
| 2013-06-17 | 503-718-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2012-10-04 | 503-783-7XXX | 7000–7999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | STFRD-SNDY | OR |
| 2012-01-06 | 503-924-8XXX | 8000–8999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2011-09-28 | 503-597-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2011-09-28 | 503-924-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2011-01-07 | 503-783-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | STFRD-SNDY | OR |
| 2010-11-03 | 503-213-1XXX | 1000–1999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2010-11-03 | 503-597-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2010-01-21 | 503-619-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2010-01-19 | 503-214-1XXX | 1000–1999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2009-11-19 | 503-902-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | WOODBURN | OR |
| 2009-11-10 | 503-907-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | GRESHAM | OR |
| 2009-09-14 | 503-619-1XXX | 1000–1999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2009-05-27 | 503-214-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2009-03-03 | 503-847-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
| 2009-03-02 | 503-567-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2009-01-20 | 503-575-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
| 2008-11-11 | 503-814-0XXX | 0000–0999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | SALEM | OR |
| 2008-11-11 | 503-814-8XXX | 8000–8999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | SALEM | OR |
| 2008-11-11 | 503-814-9XXX | 9000–9999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | SALEM | OR |
| 2008-10-28 | 503-906-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2008-09-26 | 503-278-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
| 2008-09-26 | 503-814-1XXX | 1000–1999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | SALEM | OR |
| 2008-09-26 | 503-814-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | SALEM | OR |
| 2008-09-26 | 503-814-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | SALEM | OR |
| 2008-09-26 | 503-814-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | SALEM | OR |
| 2008-09-26 | 503-814-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | SALEM | OR |
| 2008-09-26 | 503-814-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | SALEM | OR |
| 2008-09-26 | 503-814-7XXX | 7000–7999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | SALEM | OR |
| 2008-09-04 | 503-210-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CLACKAMAS | OR |
| 2008-07-29 | 503-594-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CLACKAMAS | OR |
| 2008-07-29 | 503-594-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CLACKAMAS | OR |
| 2008-06-19 | 503-953-1XXX | 1000–1999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
| 2008-06-04 | 503-505-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
| 2008-05-28 | 503-501-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
| 2008-04-18 | 503-808-7XXX | 7000–7999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
| 2008-03-19 | 503-496-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CLACKAMAS | OR |
| 2008-02-20 | 503-896-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
| 2008-02-19 | 503-594-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CLACKAMAS | OR |
| 2008-02-19 | 503-783-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | STFRD-SNDY | OR |
| 2008-02-19 | 503-935-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
| 2007-10-12 | 503-953-7XXX | 7000–7999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
| 2007-10-12 | 503-953-8XXX | 8000–8999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
| 2007-07-19 | 503-606-7XXX | 7000–7999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | DALLAS | OR |
| 2007-06-29 | 503-496-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CLACKAMAS | OR |
| 2007-06-21 | 503-210-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CLACKAMAS | OR |
| 2007-06-07 | 503-200-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | PORTLAND | OR |
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.