NumberResearchThousands-blocks in 603-322
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 603-322 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 603 blocks
Most active assignees, last 30 days — NPA 603
New assignments by month
Sep 2026
Aug 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-05-17 | 603-322-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | W LEBANON | NH |
| 2021-05-04 | 603-322-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | W LEBANON | NH |
| — | 603-322-2XXX | 2000–2999 | Available | W LEBANON | NH | ||
| — | 603-322-3XXX | 3000–3999 | Reserved | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | W LEBANON | NH |
| 2026-09-10 | 603-322-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | W LEBANON | NH |
| 2023-03-27 | 603-322-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | W LEBANON | NH |
| — | 603-322-6XXX | 6000–6999 | Available | W LEBANON | NH | ||
| — | 603-322-7XXX | 7000–7999 | Available | W LEBANON | NH | ||
| 2017-01-05 | 603-322-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | W LEBANON | NH |
| — | 603-322-9XXX | 9000–9999 | Available | W LEBANON | NH |
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.