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 |
|---|---|---|---|---|---|---|---|
| 2015-01-12 | 720-537-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2015-01-12 | 720-772-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2015-01-12 | 720-899-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | LONGMONT | CO |
| 2015-01-07 | 720-662-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2015-01-07 | 720-662-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2015-01-07 | 720-662-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2015-01-07 | 720-662-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2014-12-15 | 720-573-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | DENVER | CO |
| 2014-12-15 | 720-669-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | HUDSON | CO |
| 2014-12-15 | 720-669-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | HUDSON | CO |
| 2014-12-15 | 720-669-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | HUDSON | CO |
| 2014-12-15 | 720-772-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 3467 | DENVER | CO |
| 2014-12-09 | 720-619-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | GEORGETOWN | CO |
| 2014-12-09 | 720-619-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | GEORGETOWN | CO |
| 2014-12-09 | 720-893-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | ALLNSPKLYN | CO |
| 2014-12-09 | 720-893-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | ALLNSPKLYN | CO |
| 2014-11-24 | 720-707-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-24 | 720-707-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-24 | 720-707-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-24 | 720-707-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-19 | 720-500-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-19 | 720-500-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-19 | 720-500-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-19 | 720-500-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-19 | 720-573-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | DENVER | CO |
| 2014-11-18 | 720-899-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | LONGMONT | CO |
| 2014-11-18 | 720-899-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | LONGMONT | CO |
| 2014-11-18 | 720-899-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | LONGMONT | CO |
| 2014-11-11 | 720-575-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-575-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-575-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-575-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-575-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-575-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-575-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-575-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-575-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-575-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-699-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-699-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-699-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-699-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-699-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-699-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-699-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-699-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-699-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-699-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2014-11-11 | 720-899-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | LONGMONT | CO |
| 2014-11-11 | 720-899-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | LONGMONT | 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.