NumberResearchThousands-blocks in 660-279
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 660-279 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 660 blocks
Most active assignees, all time — NPA 660
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2009-01-13 | 660-279-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | BLACKBURN | MO |
| 2014-03-27 | 660-279-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | BLACKBURN | MO |
| 2019-09-12 | 660-279-2XXX | 2000–2999 | Assigned | VONAGE AMERICA LLC | 197D | BLACKBURN | MO |
| 2020-07-01 | 660-279-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | BLACKBURN | MO |
| — | 660-279-4XXX | 4000–4999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | BLACKBURN | MO |
| 2025-06-11 | 660-279-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | BLACKBURN | MO |
| 2021-06-03 | 660-279-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BLACKBURN | MO |
| 2013-10-03 | 660-279-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BLACKBURN | MO |
| — | 660-279-8XXX | 8000–8999 | Available | BLACKBURN | MO | ||
| — | 660-279-9XXX | 9000–9999 | Available | BLACKBURN | MO |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.