NumberResearchThousands-blocks in 973-250
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 973-250 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 973 blocks
Most active assignees, all time — NPA 973
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-11-21 | 973-250-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | BRANCHVL | NJ |
| 2023-08-29 | 973-250-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | BRANCHVL | NJ |
| 2008-09-23 | 973-250-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | BRANCHVL | NJ |
| 2009-05-28 | 973-250-3XXX | 3000–3999 | Assigned | SERVICE ELECTRIC TELEPHONE COMPANY, LLC - NJ | 420F | BRANCHVL | NJ |
| 2005-08-22 | 973-250-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | BRANCHVL | NJ |
| 2006-03-01 | 973-250-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | BRANCHVL | NJ |
| 2009-04-16 | 973-250-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BRANCHVL | NJ |
| 2010-07-27 | 973-250-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | BRANCHVL | NJ |
| 2008-11-05 | 973-250-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BRANCHVL | NJ |
| 2010-07-27 | 973-250-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | BRANCHVL | NJ |
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.