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 |
|---|---|---|---|---|---|---|---|
| 2024-12-16 | 503-800-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GERVAIS | OR |
| 2024-11-22 | 503-573-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRESHAM | OR |
| 2024-11-21 | 503-573-0XXX | 0000–0999 | Assigned | ONVOY, LLC - OR | 750E | GRESHAM | OR |
| 2024-11-08 | 503-898-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REDLAND | OR |
| 2024-10-08 | 503-487-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | NEWBERG | OR |
| 2024-10-08 | 503-487-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | NEWBERG | OR |
| 2024-10-03 | 503-343-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | CLACKAMAS | OR |
| 2024-09-17 | 503-344-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLACKAMAS | OR |
| 2024-09-17 | 503-344-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLACKAMAS | OR |
| 2024-09-17 | 503-503-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SHERWOOD | OR |
| 2024-09-17 | 503-503-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SHERWOOD | OR |
| 2024-09-17 | 503-506-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STFRD-SNDY | OR |
| 2024-09-17 | 503-563-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STFRD-SNDY | OR |
| 2024-09-17 | 503-773-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NORTH PL | OR |
| 2024-09-17 | 503-809-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NORTH PL | OR |
| 2024-09-11 | 503-376-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | MCMINNVL | OR |
| 2024-09-11 | 503-549-9XXX | 9000–9999 | Assigned | ONVOY, LLC - OR | 750E | BEAVERTON | OR |
| 2024-07-16 | 503-343-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLACKAMAS | OR |
| 2024-06-21 | 503-600-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | MOLALLA | OR |
| 2024-06-04 | 503-503-5XXX | 5000–5999 | Assigned | ONVOY, LLC - OR | 750E | SHERWOOD | OR |
| 2024-06-04 | 503-503-6XXX | 6000–6999 | Assigned | ONVOY, LLC - OR | 750E | SHERWOOD | OR |
| 2024-06-04 | 503-503-7XXX | 7000–7999 | Assigned | ONVOY, LLC - OR | 750E | SHERWOOD | OR |
| 2024-05-10 | 503-764-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTLAND | OR |
| 2024-04-10 | 503-389-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NORTH PL | OR |
| 2023-12-14 | 503-996-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | MOUNTANGEL | OR |
| 2023-08-30 | 503-420-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF OREGON, LLC - OR | 157F | DALLAS | OR |
| 2023-08-29 | 503-996-9XXX | 9000–9999 | Assigned | ALYRICA TELEPHONE LLC DBA NEXT GEN PHONE SYS-OR | 9882 | MOUNTANGEL | OR |
| 2023-06-28 | 503-898-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | REDLAND | OR |
| 2023-06-28 | 503-996-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | MOUNTANGEL | OR |
| 2023-05-09 | 503-486-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STFRD-SNDY | OR |
| 2023-02-10 | 503-879-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | GRANDRONDE | OR |
| 2022-08-16 | 503-716-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | BEAVERTON | OR |
| 2022-08-09 | 503-609-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | CORBETT | OR |
| 2022-07-01 | 503-658-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | STFRD-SNDY | OR |
| 2022-06-15 | 503-592-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CANBYNEEDY | OR |
| 2022-06-09 | 503-600-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - OR | 7531 | MOLALLA | OR |
| 2022-02-15 | 503-800-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | GERVAIS | OR |
| 2021-11-21 | 503-500-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTLAND | OR |
| 2021-11-21 | 503-500-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTLAND | OR |
| 2021-11-21 | 503-500-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTLAND | OR |
| 2021-11-21 | 503-500-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTLAND | OR |
| 2021-11-21 | 503-500-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTLAND | OR |
| 2021-11-21 | 503-500-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTLAND | OR |
| 2021-11-21 | 503-500-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTLAND | OR |
| 2021-11-21 | 503-500-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTLAND | OR |
| 2021-11-21 | 503-500-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTLAND | OR |
| 2021-11-19 | 503-217-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SHERWOOD | OR |
| 2021-11-19 | 503-592-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - OR | 7531 | CANBYNEEDY | OR |
| 2021-11-19 | 503-822-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SHERWOOD | OR |
| 2021-11-19 | 503-874-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SILVERTON | 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.