NumberResearchThousands-blocks in 940-580
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 940-580 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 940 blocks
Most active assignees, all time — NPA 940
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2005-05-03 | 940-580-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | GAINESVL | TX |
| 2013-03-28 | 940-580-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | GAINESVL | TX |
| 2005-08-15 | 940-580-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | GAINESVL | TX |
| 2006-12-20 | 940-580-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | GAINESVL | TX |
| — | 940-580-4XXX | 4000–4999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | GAINESVL | TX |
| 2011-02-25 | 940-580-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | GAINESVL | TX |
| 2021-08-25 | 940-580-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GAINESVL | TX |
| 2010-11-08 | 940-580-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GAINESVL | TX |
| 2009-03-05 | 940-580-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | GAINESVL | TX |
| 2009-01-23 | 940-580-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | GAINESVL | TX |
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.