NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 |
|---|---|---|---|---|---|---|---|
| 2012-05-04 | 720-539-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-05-04 | 720-599-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-05-04 | 720-599-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-05-04 | 720-599-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-05-04 | 720-599-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-05-04 | 720-599-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-05-04 | 720-599-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-05-04 | 720-599-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-05-04 | 720-599-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-05-04 | 720-599-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-05-03 | 720-924-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DECKERS | CO |
| 2012-05-02 | 720-305-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-04-17 | 720-414-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | ALLNSPKLYN | CO |
| 2012-04-13 | 720-606-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CO | 026D | FORTLUPTON | CO |
| 2012-04-06 | 720-465-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | DENVER | CO |
| 2012-04-05 | 720-491-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LONGMONT | CO |
| 2012-04-05 | 720-789-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DENVER | CO |
| 2012-03-28 | 720-465-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 3467 | DENVER | CO |
| 2012-03-14 | 720-924-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DECKERS | CO |
| 2012-03-09 | 720-305-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-03-09 | 720-305-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-03-09 | 720-305-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-03-09 | 720-729-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | KEENESBURG | CO |
| 2012-03-08 | 720-627-0XXX | 0000–0999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2012-03-08 | 720-627-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2012-03-08 | 720-627-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2012-03-08 | 720-627-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2012-03-08 | 720-627-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2012-02-28 | 720-499-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-02-28 | 720-499-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-02-28 | 720-499-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-02-28 | 720-499-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-02-28 | 720-499-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-02-28 | 720-499-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-02-28 | 720-808-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-02-28 | 720-808-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-02-28 | 720-808-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2012-02-22 | 720-305-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | DENVER | CO |
| 2012-02-22 | 720-305-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | DENVER | CO |
| 2012-02-22 | 720-491-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | LONGMONT | CO |
| 2012-02-22 | 720-623-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-02-22 | 720-623-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-02-22 | 720-623-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-02-22 | 720-623-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-02-22 | 720-623-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-02-22 | 720-623-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-02-22 | 720-623-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-02-22 | 720-623-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-02-22 | 720-623-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2012-02-22 | 720-623-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.