NumberResearchThousands-blocks in 720-239
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 720-239 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 720 blocks
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 |
|---|---|---|---|---|---|---|---|
| — | 720-239-0XXX | 0000–0999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 7378 | DENVER | CO |
| 2008-09-29 | 720-239-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DENVER | CO |
| 2008-10-24 | 720-239-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DENVER | CO |
| 2006-12-29 | 720-239-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| — | 720-239-4XXX | 4000–4999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 7378 | DENVER | CO |
| 2026-03-02 | 720-239-5XXX | 5000–5999 | Assigned | AHOI LLC | 883K | DENVER | CO |
| 2026-01-13 | 720-239-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CO | 026D | DENVER | CO |
| 2017-07-06 | 720-239-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DENVER | CO |
| — | 720-239-8XXX | 8000–8999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 7378 | DENVER | CO |
| 2026-03-13 | 720-239-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | 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.