NumberResearchRecent thousands-block assignments
7 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, 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 |
|---|---|---|---|---|---|---|---|
| 2016-03-25 | 503-966-2XXX | 2000–2999 | Assigned | ONVOY, LLC - OR | 750E | WESTPORT | OR |
| 2016-03-25 | 503-966-8XXX | 8000–8999 | Assigned | ONVOY, LLC - OR | 750E | WESTPORT | OR |
| 2016-03-21 | 503-966-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OR | 750E | WESTPORT | OR |
| 2016-03-21 | 503-966-4XXX | 4000–4999 | Assigned | ONVOY, LLC - OR | 750E | WESTPORT | OR |
| 2016-03-11 | 503-496-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | CLACKAMAS | OR |
| 2016-03-11 | 503-509-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | STAYTON | OR |
| 2016-03-11 | 503-607-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | CLACKAMAS | OR |
| 2016-03-11 | 503-660-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | GRESHAM | OR |
| 2016-03-11 | 503-676-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | GRESHAM | OR |
| 2016-02-29 | 503-305-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLACKAMAS | OR |
| 2016-02-29 | 503-305-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLACKAMAS | OR |
| 2016-02-29 | 503-451-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLACKAMAS | OR |
| 2016-02-29 | 503-451-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLACKAMAS | OR |
| 2016-02-29 | 503-451-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLACKAMAS | OR |
| 2016-02-18 | 503-303-0XXX | 0000–0999 | Assigned | ONVOY, LLC - OR | 750E | CLACKAMAS | OR |
| 2016-02-18 | 503-303-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OR | 750E | CLACKAMAS | OR |
| 2016-02-18 | 503-783-8XXX | 8000–8999 | Assigned | ONVOY, LLC - OR | 750E | STFRD-SNDY | OR |
| 2016-02-18 | 503-832-9XXX | 9000–9999 | Assigned | ONVOY, LLC - OR | 750E | STFRD-SNDY | OR |
| 2016-02-10 | 503-843-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF OREGON, LLC - OR | 157F | SHERIDAN | OR |
| 2016-02-03 | 503-660-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | GRESHAM | OR |
| 2015-12-22 | 503-300-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BAY CITY | OR |
| 2015-12-09 | 503-979-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STAYTON | OR |
| 2015-12-09 | 503-979-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STAYTON | OR |
| 2015-12-08 | 503-801-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TILLAMOOK | OR |
| 2015-11-25 | 503-676-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRESHAM | OR |
| 2015-11-25 | 503-676-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRESHAM | OR |
| 2015-11-25 | 503-676-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRESHAM | OR |
| 2015-11-25 | 503-878-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-11-25 | 503-878-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-11-25 | 503-878-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-11-25 | 503-878-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-11-11 | 503-462-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | CLACKAMAS | OR |
| 2015-11-11 | 503-462-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | CLACKAMAS | OR |
| 2015-11-11 | 503-462-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CLACKAMAS | OR |
| 2015-10-19 | 503-966-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | WESTPORT | OR |
| 2015-09-23 | 503-479-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF OREGON, LLC - OR | 157F | CLACKAMAS | OR |
| 2015-09-16 | 503-966-5XXX | 5000–5999 | Assigned | ONVOY, LLC - OR | 750E | WESTPORT | OR |
| 2015-09-03 | 503-462-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLACKAMAS | OR |
| 2015-09-03 | 503-462-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLACKAMAS | OR |
| 2015-09-03 | 503-462-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLACKAMAS | OR |
| 2015-09-03 | 503-462-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLACKAMAS | OR |
| 2015-09-03 | 503-766-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRESHAM | OR |
| 2015-09-03 | 503-766-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRESHAM | OR |
| 2015-08-21 | 503-405-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GRESHAM | OR |
| 2015-08-17 | 503-594-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CLACKAMAS | OR |
| 2015-08-17 | 503-660-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | GRESHAM | OR |
| 2015-08-17 | 503-660-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | GRESHAM | OR |
| 2015-08-17 | 503-660-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | GRESHAM | OR |
| 2015-07-23 | 503-855-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | STFRD-SNDY | OR |
| 2015-07-17 | 503-770-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | CHARBONNEU | OR |
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.