NumberResearchRecent thousands-block assignments
0 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, all time — NPA 720
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-10-09 | 720-569-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-09 | 720-569-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-09 | 720-569-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-09 | 720-569-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-09 | 720-569-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-09 | 720-569-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-09 | 720-569-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-09 | 720-569-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-08 | 720-236-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-08 | 720-236-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-08 | 720-236-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-08 | 720-256-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-08 | 720-256-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-08 | 720-256-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-08 | 720-256-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-08 | 720-256-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-10-08 | 720-256-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-09-30 | 720-318-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-09-30 | 720-384-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-09-30 | 720-519-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-09-30 | 720-544-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2008-09-30 | 720-951-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2008-09-29 | 720-235-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DENVER | CO |
| 2008-09-29 | 720-239-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DENVER | CO |
| 2008-09-29 | 720-240-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DENVER | CO |
| 2008-09-29 | 720-250-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DENVER | CO |
| 2008-09-29 | 720-253-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DENVER | CO |
| 2008-09-29 | 720-253-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DENVER | CO |
| 2008-09-29 | 720-255-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DENVER | CO |
| 2008-09-29 | 720-256-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DENVER | CO |
| 2008-09-26 | 720-863-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO |
| 2008-09-26 | 720-863-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO |
| 2008-09-25 | 720-252-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-252-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-998-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-998-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-998-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-998-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-998-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-998-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-998-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-998-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-999-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-999-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-999-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-999-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-999-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-999-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-999-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-09-25 | 720-999-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
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.