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 |
|---|---|---|---|---|---|---|---|
| 2017-08-21 | 720-650-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2017-08-18 | 720-676-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DENVER | CO |
| 2017-08-16 | 720-594-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2017-08-16 | 720-594-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2017-08-16 | 720-594-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2017-08-16 | 720-594-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2017-08-16 | 720-594-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2017-08-16 | 720-594-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2017-08-15 | 720-594-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2017-08-15 | 720-594-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2017-08-15 | 720-594-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2017-08-15 | 720-602-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2017-08-15 | 720-602-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2017-08-15 | 720-602-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2017-08-15 | 720-602-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2017-08-15 | 720-602-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2017-08-14 | 720-795-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2017-08-11 | 720-602-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2017-08-11 | 720-602-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2017-08-11 | 720-602-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2017-08-01 | 720-602-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | DENVER | CO |
| 2017-07-27 | 720-676-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | DENVER | CO |
| 2017-07-27 | 720-676-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | DENVER | CO |
| 2017-07-27 | 720-676-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | DENVER | CO |
| 2017-07-27 | 720-791-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | GEORGETOWN | CO |
| 2017-07-27 | 720-791-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | GEORGETOWN | CO |
| 2017-07-24 | 720-516-0XXX | 0000–0999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2017-07-24 | 720-516-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2017-07-24 | 720-516-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2017-07-24 | 720-516-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2017-07-24 | 720-516-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2017-07-24 | 720-516-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2017-07-24 | 720-516-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2017-07-24 | 720-516-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2017-07-24 | 720-516-8XXX | 8000–8999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2017-07-24 | 720-516-9XXX | 9000–9999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2017-07-06 | 720-239-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DENVER | CO |
| 2017-07-06 | 720-356-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DENVER | CO |
| 2017-07-06 | 720-510-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DENVER | CO |
| 2017-07-06 | 720-594-1XXX | 1000–1999 | Assigned | AIRUS, INC. - CO | 019J | DENVER | CO |
| 2017-07-05 | 720-735-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | KEENESBURG | CO |
| 2017-06-29 | 720-676-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DENVER | CO |
| 2017-06-29 | 720-795-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF COLORADO, LLC - CO | 278F | DENVER | CO |
| 2017-06-28 | 720-510-0XXX | 0000–0999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 3467 | DENVER | CO |
| 2017-06-28 | 720-510-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 3467 | DENVER | CO |
| 2017-06-28 | 720-510-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 3467 | DENVER | CO |
| 2017-06-28 | 720-795-0XXX | 0000–0999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 3467 | DENVER | CO |
| 2017-06-28 | 720-795-1XXX | 1000–1999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 3467 | DENVER | CO |
| 2017-06-21 | 720-795-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DENVER | CO |
| 2017-06-20 | 720-510-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 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.