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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-11-10 | 720-831-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2021-11-10 | 720-831-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2021-11-10 | 720-831-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2021-11-10 | 720-831-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2021-11-10 | 720-831-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2021-11-10 | 720-861-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GEORGETOWN | CO |
| 2021-11-10 | 720-869-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2021-11-10 | 720-869-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2021-11-10 | 720-921-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2021-11-05 | 720-853-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | LONGMONT | CO |
| 2021-11-05 | 720-853-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | LONGMONT | CO |
| 2021-11-05 | 720-856-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | FORTLUPTON | CO |
| 2021-11-05 | 720-856-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | FORTLUPTON | CO |
| 2021-11-05 | 720-856-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | FORTLUPTON | CO |
| 2021-11-05 | 720-894-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | DECKERS | CO |
| 2021-11-05 | 720-894-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | DECKERS | CO |
| 2021-11-05 | 720-894-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | DECKERS | CO |
| 2021-10-29 | 720-894-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | DECKERS | CO |
| 2021-10-27 | 720-824-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF COLORADO, LLC - CO | 278F | HUDSON | CO |
| 2021-10-27 | 720-853-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF COLORADO, LLC - CO | 278F | LONGMONT | CO |
| 2021-10-26 | 720-861-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | GEORGETOWN | CO |
| 2021-10-25 | 720-831-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 7378 | DENVER | CO |
| 2021-10-25 | 720-831-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 7378 | DENVER | CO |
| 2021-10-25 | 720-853-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | LONGMONT | CO |
| 2021-10-25 | 720-853-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | LONGMONT | CO |
| 2021-10-25 | 720-853-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | LONGMONT | CO |
| 2021-10-25 | 720-853-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | LONGMONT | CO |
| 2021-10-25 | 720-853-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | LONGMONT | CO |
| 2021-10-25 | 720-856-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | FORTLUPTON | CO |
| 2021-10-25 | 720-869-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2021-10-25 | 720-869-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2021-10-25 | 720-869-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2021-10-25 | 720-869-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2021-10-25 | 720-869-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2021-10-25 | 720-869-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2021-10-25 | 720-869-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2021-10-25 | 720-869-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2021-10-25 | 720-894-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DECKERS | CO |
| 2021-10-21 | 720-637-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2021-10-21 | 720-637-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2021-10-21 | 720-637-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2021-10-21 | 720-637-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2021-10-21 | 720-637-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2021-10-21 | 720-637-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2021-10-21 | 720-637-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2021-10-21 | 720-637-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2021-10-21 | 720-637-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2021-10-21 | 720-637-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2021-10-21 | 720-843-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DENVER | CO |
| 2021-10-20 | 720-794-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | ALLNSPKLYN | 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.