NumberResearchRecent thousands-block assignments
7 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, last 30 days — NPA 503
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 |
|---|---|---|---|---|---|---|---|
| 2010-01-12 | 503-894-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2010-01-12 | 503-894-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-12-30 | 503-446-8XXX | 8000–8999 | Assigned | ONVOY, LLC - OR | 750E | PORTLAND | OR |
| 2009-12-30 | 503-446-9XXX | 9000–9999 | Assigned | ONVOY, LLC - OR | 750E | PORTLAND | OR |
| 2009-11-19 | 503-902-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | WOODBURN | OR |
| 2009-11-12 | 503-877-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | SALEM | OR |
| 2009-11-10 | 503-907-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | GRESHAM | OR |
| 2009-11-06 | 503-787-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FALLS CITY | OR |
| 2009-11-04 | 503-828-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | BEAVERTON | OR |
| 2009-11-04 | 503-828-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | BEAVERTON | OR |
| 2009-10-26 | 503-483-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | PACIFIC CY | OR |
| 2009-10-08 | 503-964-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-10-08 | 503-964-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-10-08 | 503-964-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-10-08 | 503-964-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-10-08 | 503-983-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | SALEM | OR |
| 2009-10-08 | 503-983-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | SALEM | OR |
| 2009-10-08 | 503-983-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | SALEM | OR |
| 2009-10-02 | 503-983-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | SALEM | OR |
| 2009-09-23 | 503-915-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTLAND | OR |
| 2009-09-23 | 503-915-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTLAND | OR |
| 2009-09-23 | 503-915-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTLAND | OR |
| 2009-09-23 | 503-915-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTLAND | OR |
| 2009-09-23 | 503-915-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTLAND | OR |
| 2009-09-23 | 503-915-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTLAND | OR |
| 2009-09-22 | 503-534-6XXX | 6000–6999 | Assigned | ONVOY, LLC - OR | 750E | CLACKAMAS | OR |
| 2009-09-22 | 503-742-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OR | 750E | CLACKAMAS | OR |
| 2009-09-21 | 503-403-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | BEAVERTON | OR |
| 2009-09-21 | 503-403-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | BEAVERTON | OR |
| 2009-09-21 | 503-410-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | ST HELENS | OR |
| 2009-09-21 | 503-616-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | BEAVERTON | OR |
| 2009-09-17 | 503-855-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | STFRD-SNDY | OR |
| 2009-09-14 | 503-619-1XXX | 1000–1999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEAVERTON | OR |
| 2009-08-31 | 503-894-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-08-31 | 503-894-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-08-27 | 503-278-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-08-27 | 503-568-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-08-27 | 503-568-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-08-27 | 503-915-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-08-27 | 503-915-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2009-08-13 | 503-505-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | PORTLAND | OR |
| 2009-08-13 | 503-505-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | PORTLAND | OR |
| 2009-08-13 | 503-505-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | PORTLAND | OR |
| 2009-08-11 | 503-877-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | SALEM | OR |
| 2009-08-10 | 503-308-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | CLATSKANIE | OR |
| 2009-08-10 | 503-983-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | SALEM | OR |
| 2009-08-05 | 503-278-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | PORTLAND | OR |
| 2009-08-05 | 503-899-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | NEWBERG | OR |
| 2009-07-20 | 503-583-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | MCMINNVL | OR |
| 2009-07-20 | 503-707-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | BEAVERTON | 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.