NumberResearchRecent thousands-block assignments
5 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 206
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 |
|---|---|---|---|---|---|---|---|
| 2009-12-11 | 206-249-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DES MOINES | WA |
| 2009-12-11 | 206-397-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2009-12-11 | 206-397-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2009-12-08 | 206-397-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | SEATTLE | WA |
| 2009-12-08 | 206-397-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | SEATTLE | WA |
| 2009-12-08 | 206-707-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-12-08 | 206-707-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-11-10 | 206-445-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-11-10 | 206-445-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-10-09 | 206-445-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-10-09 | 206-445-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-10-09 | 206-445-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-10-09 | 206-445-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-10-09 | 206-552-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-10-09 | 206-552-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-10-01 | 206-395-0XXX | 0000–0999 | Assigned | ONVOY, LLC - WA | 483E | SEATTLE | WA |
| 2009-09-28 | 206-445-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WA | 6121 | SEATTLE | WA |
| 2009-09-22 | 206-451-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | BAINBDG IS | WA |
| 2009-09-14 | 206-552-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-09-14 | 206-552-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-08-31 | 206-445-7XXX | 7000–7999 | Assigned | ONVOY, LLC - WA | 483E | SEATTLE | WA |
| 2009-08-14 | 206-452-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-08-14 | 206-458-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-08-13 | 206-651-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | DES MOINES | WA |
| 2009-08-13 | 206-787-8XXX | 8000–8999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SEATTLE | WA |
| 2009-08-11 | 206-414-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | SEATTLE | WA |
| 2009-08-11 | 206-414-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | SEATTLE | WA |
| 2009-08-11 | 206-552-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SEATTLE | WA |
| 2009-08-11 | 206-588-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | SEATTLE | WA |
| 2009-08-11 | 206-588-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | SEATTLE | WA |
| 2009-08-11 | 206-659-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | SEATTLE | WA |
| 2009-08-11 | 206-659-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | SEATTLE | WA |
| 2009-08-11 | 206-659-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | SEATTLE | WA |
| 2009-08-11 | 206-659-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | SEATTLE | WA |
| 2009-08-11 | 206-659-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | SEATTLE | WA |
| 2009-08-11 | 206-659-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | SEATTLE | WA |
| 2009-07-31 | 206-659-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | SEATTLE | WA |
| 2009-07-28 | 206-458-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA |
| 2009-07-28 | 206-458-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA |
| 2009-07-17 | 206-414-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA |
| 2009-07-10 | 206-659-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-07-10 | 206-659-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SEATTLE | WA |
| 2009-07-10 | 206-707-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | SEATTLE | WA |
| 2009-06-22 | 206-707-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SEATTLE | WA |
| 2009-06-10 | 206-432-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | SEATTLE | WA |
| 2009-06-04 | 206-653-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DES MOINES | WA |
| 2009-05-27 | 206-588-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | SEATTLE | WA |
| 2009-05-13 | 206-787-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2009-05-13 | 206-787-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2009-05-07 | 206-249-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WA | 483E | DES MOINES | WA |
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.