NumberResearchThousands-blocks in 940-663
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 940-663 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 |
|---|---|---|---|---|---|---|---|
| 2023-12-04 | 940-663-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | QUANAH | TX |
| — | 940-663-1XXX | 1000–1999 | Reserved | SOUTHWESTERN BELL | 9533 | QUANAH | TX |
| — | 940-663-2XXX | 2000–2999 | Reserved | SOUTHWESTERN BELL | 9533 | QUANAH | TX |
| 2017-02-03 | 940-663-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | QUANAH | TX |
| 2011-12-12 | 940-663-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | QUANAH | TX |
| — | 940-663-5XXX | 5000–5999 | Reserved | SOUTHWESTERN BELL | 9533 | QUANAH | TX |
| — | 940-663-6XXX | 6000–6999 | Reserved | SOUTHWESTERN BELL | 9533 | QUANAH | TX |
| 2017-07-28 | 940-663-7XXX | 7000–7999 | Assigned | SANTA ROSA TELEPHONE COOPERATIVE, INC. | 4046 | QUANAH | TX |
| 2026-04-01 | 940-663-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | QUANAH | TX |
| 2015-07-29 | 940-663-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | QUANAH | 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.