NumberResearchThousands-blocks in 208-561
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 208-561 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 208 blocks
Most active assignees, all time — NPA 208
New assignments by month
Sep 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2002-11-14 | 208-561-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | BAYVIEW | ID |
| 2006-11-01 | 208-561-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BAYVIEW | ID |
| 2008-03-06 | 208-561-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | BAYVIEW | ID |
| 2022-05-11 | 208-561-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | BAYVIEW | ID |
| 2024-12-17 | 208-561-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BAYVIEW | ID |
| 2007-07-11 | 208-561-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BAYVIEW | ID |
| 2006-08-15 | 208-561-6XXX | 6000–6999 | Assigned | ONVOY, LLC - ID | 689F | BAYVIEW | ID |
| 2006-08-15 | 208-561-7XXX | 7000–7999 | Assigned | ONVOY, LLC - ID | 689F | BAYVIEW | ID |
| 2006-08-15 | 208-561-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BAYVIEW | ID |
| 2007-07-19 | 208-561-9XXX | 9000–9999 | Assigned | ONVOY, LLC - ID | 689F | BAYVIEW | ID |
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.