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 |
|---|---|---|---|---|---|---|---|
| 2015-03-30 | 720-598-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2015-03-30 | 720-598-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2015-03-30 | 720-799-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2015-03-18 | 720-598-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | DENVER | CO |
| 2015-03-18 | 720-598-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | DENVER | CO |
| 2015-03-18 | 720-799-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2015-03-18 | 720-799-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2015-03-18 | 720-799-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2015-03-05 | 720-717-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2015-03-05 | 720-717-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2015-03-02 | 720-598-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-03-02 | 720-598-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-03-02 | 720-598-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-25 | 720-662-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2015-02-25 | 720-662-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2015-02-23 | 720-577-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-577-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-577-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-772-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-772-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-772-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-772-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-772-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-773-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-773-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-773-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-773-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-773-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-773-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2015-02-23 | 720-773-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-773-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-23 | 720-773-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2015-02-17 | 720-573-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | DENVER | CO |
| 2015-02-17 | 720-573-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | DENVER | CO |
| 2015-02-10 | 720-772-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | DENVER | CO |
| 2015-02-10 | 720-773-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO |
| 2015-02-04 | 720-573-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO |
| 2015-01-28 | 720-707-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | DENVER | CO |
| 2015-01-28 | 720-707-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | DENVER | CO |
| 2015-01-28 | 720-707-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | DENVER | CO |
| 2015-01-23 | 720-772-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 3467 | DENVER | CO |
| 2015-01-16 | 720-662-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2015-01-12 | 720-537-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2015-01-12 | 720-537-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2015-01-12 | 720-537-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2015-01-12 | 720-537-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2015-01-12 | 720-537-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2015-01-12 | 720-537-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2015-01-12 | 720-537-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2015-01-12 | 720-537-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | 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.