NumberResearchThousands-blocks in 208-603
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 208-603 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
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-11-01 | 208-603-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | SANDPOINT | ID |
| 2020-06-23 | 208-603-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | SANDPOINT | ID |
| 2020-10-29 | 208-603-2XXX | 2000–2999 | Assigned | ONVOY, LLC - ID | 689F | SANDPOINT | ID |
| 2018-09-19 | 208-603-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ID | 678B | SANDPOINT | ID |
| 2021-02-08 | 208-603-4XXX | 4000–4999 | Assigned | ONVOY, LLC - ID | 689F | SANDPOINT | ID |
| 2021-02-08 | 208-603-5XXX | 5000–5999 | Assigned | ONVOY, LLC - ID | 689F | SANDPOINT | ID |
| 2022-05-09 | 208-603-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | SANDPOINT | ID |
| 2021-03-16 | 208-603-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANDPOINT | ID |
| 2020-09-28 | 208-603-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANDPOINT | ID |
| 2018-10-18 | 208-603-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANDPOINT | 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.