NumberResearchThousands-blocks in 240-627
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 240-627 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 240 blocks
Most active assignees, all time — NPA 240
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-10-17 | 240-627-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | WSNGTNZN11 | MD |
| 2024-11-06 | 240-627-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSNGTNZN11 | MD |
| 2024-04-30 | 240-627-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | WSNGTNZN11 | MD |
| — | 240-627-3XXX | 3000–3999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | WSNGTNZN11 | MD |
| 2024-11-06 | 240-627-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSNGTNZN11 | MD |
| 2018-10-12 | 240-627-5XXX | 5000–5999 | Assigned | CORE COMMUNICATIONS, INC.- MD | 2593 | WSNGTNZN11 | MD |
| 2007-08-29 | 240-627-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNGTNZN11 | MD |
| 2008-08-01 | 240-627-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - MD | 281E | WSNGTNZN11 | MD |
| 2008-08-01 | 240-627-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - MD | 281E | WSNGTNZN11 | MD |
| — | 240-627-9XXX | 9000–9999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | WSNGTNZN11 | MD |
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.