NumberResearchThousands-blocks in 330-913
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 330-913 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 330 blocks
Most active assignees, all time — NPA 330
New assignments by month
Sep 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-10-29 | 330-913-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF OHIO, LLC - OH | 284F | ALLIANCE | OH |
| 2014-08-27 | 330-913-1XXX | 1000–1999 | Assigned | ONVOY, LLC - OH | 464C | ALLIANCE | OH |
| 2013-07-12 | 330-913-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - OH | 7532 | ALLIANCE | OH |
| 2012-01-06 | 330-913-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OH | 464C | ALLIANCE | OH |
| 2014-08-27 | 330-913-4XXX | 4000–4999 | Assigned | ONVOY, LLC - OH | 464C | ALLIANCE | OH |
| 2013-09-16 | 330-913-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ALLIANCE | OH |
| 2014-05-02 | 330-913-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ALLIANCE | OH |
| 2009-12-07 | 330-913-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ALLIANCE | OH |
| 2011-07-26 | 330-913-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ALLIANCE | OH |
| 2011-07-26 | 330-913-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ALLIANCE | OH |
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.