NumberResearchThousands-blocks in 201-300
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 201-300 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 201 blocks
Most active assignees, all time — NPA 201
New assignments by month
Sep 2026
Aug 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 |
|---|---|---|---|---|---|---|---|
| — | 201-300-0XXX | 0000–0999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FAIR LAWN | NJ |
| — | 201-300-1XXX | 1000–1999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FAIR LAWN | NJ |
| 2004-08-27 | 201-300-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FAIR LAWN | NJ |
| 2005-07-07 | 201-300-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FAIR LAWN | NJ |
| 2005-07-07 | 201-300-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FAIR LAWN | NJ |
| 2011-07-11 | 201-300-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | FAIR LAWN | NJ |
| 2008-02-06 | 201-300-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | FAIR LAWN | NJ |
| 2010-12-16 | 201-300-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | FAIR LAWN | NJ |
| — | 201-300-8XXX | 8000–8999 | Reserved | PAETEC ITEL, LLC | 829J | FAIR LAWN | NJ |
| 2009-10-12 | 201-300-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | FAIR LAWN | NJ |
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.