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 |
|---|---|---|---|---|---|---|---|
| 2015-06-30 | 503-826-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-06-30 | 503-826-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-06-30 | 503-826-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-06-30 | 503-826-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-06-30 | 503-826-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-06-03 | 503-917-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DALLAS | OR |
| 2015-05-27 | 503-994-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | WARRENTON | OR |
| 2015-05-14 | 503-303-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLACKAMAS | OR |
| 2015-05-11 | 503-354-8XXX | 8000–8999 | Assigned | HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR | 660C | TILLAMOOK | OR |
| 2015-04-24 | 503-405-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRESHAM | OR |
| 2015-04-24 | 503-405-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRESHAM | OR |
| 2015-04-24 | 503-405-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRESHAM | OR |
| 2015-04-24 | 503-855-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-04-24 | 503-855-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-04-24 | 503-855-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2015-04-24 | 503-917-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | DALLAS | OR |
| 2015-04-24 | 503-917-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | DALLAS | OR |
| 2015-04-21 | 503-563-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | STFRD-SNDY | OR |
| 2015-04-21 | 503-563-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | STFRD-SNDY | OR |
| 2015-04-21 | 503-673-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | STFRD-SNDY | OR |
| 2015-04-21 | 503-673-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | STFRD-SNDY | OR |
| 2015-04-20 | 503-785-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | CLACKAMAS | OR |
| 2015-04-20 | 503-809-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | NORTH PL | OR |
| 2015-04-20 | 503-850-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | CLACKAMAS | OR |
| 2015-04-20 | 503-882-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | CLACKAMAS | OR |
| 2015-04-20 | 503-908-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | CLACKAMAS | OR |
| 2015-04-20 | 503-919-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | CLACKAMAS | OR |
| 2015-04-10 | 503-354-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | TILLAMOOK | OR |
| 2015-04-08 | 503-484-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2015-04-08 | 503-509-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | STAYTON | OR |
| 2015-03-26 | 503-917-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OR | 750E | DALLAS | OR |
| 2015-03-11 | 503-607-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | CLACKAMAS | OR |
| 2015-03-11 | 503-607-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | CLACKAMAS | OR |
| 2015-02-16 | 503-917-7XXX | 7000–7999 | Assigned | ASTOUND BROADBAND, LLC - OR | 936F | DALLAS | OR |
| 2015-02-12 | 503-825-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | SHERWOOD | OR |
| 2015-01-22 | 503-825-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | SHERWOOD | OR |
| 2015-01-05 | 503-878-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | STFRD-SNDY | OR |
| 2014-12-16 | 503-832-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | STFRD-SNDY | OR |
| 2014-12-16 | 503-832-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | STFRD-SNDY | OR |
| 2014-12-16 | 503-832-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | STFRD-SNDY | OR |
| 2014-11-14 | 503-862-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | SHERWOOD | OR |
| 2014-11-14 | 503-862-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | SHERWOOD | OR |
| 2014-11-04 | 503-420-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | DALLAS | OR |
| 2014-11-04 | 503-420-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - OR | 076F | DALLAS | OR |
| 2014-10-21 | 503-420-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DALLAS | OR |
| 2014-10-17 | 503-800-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GERVAIS | OR |
| 2014-10-16 | 503-489-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | GRESHAM | OR |
| 2014-10-16 | 503-573-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | GRESHAM | OR |
| 2014-10-16 | 503-919-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | CLACKAMAS | OR |
| 2014-10-16 | 503-919-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | CLACKAMAS | 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.