NumberResearchThousands-blocks in 973-576
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 973-576 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
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 973-576-0XXX | 0000–0999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | WHIPPANY | NJ |
| — | 973-576-1XXX | 1000–1999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | WHIPPANY | NJ |
| — | 973-576-2XXX | 2000–2999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | WHIPPANY | NJ |
| 2004-07-19 | 973-576-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | WHIPPANY | NJ |
| 2006-03-01 | 973-576-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | WHIPPANY | NJ |
| 2020-07-20 | 973-576-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | WHIPPANY | NJ |
| — | 973-576-6XXX | 6000–6999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | WHIPPANY | NJ |
| 2004-07-21 | 973-576-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | WHIPPANY | NJ |
| 2019-11-25 | 973-576-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | WHIPPANY | NJ |
| — | 973-576-9XXX | 9000–9999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | WHIPPANY | 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.