NumberResearchThousands-blocks in 573-772
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 573-772 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 573 blocks
Most active assignees, all time — NPA 573
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 573-772-0XXX | 0000–0999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | POPLAR BLF | MO |
| — | 573-772-1XXX | 1000–1999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | POPLAR BLF | MO |
| — | 573-772-2XXX | 2000–2999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | POPLAR BLF | MO |
| 2016-04-27 | 573-772-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | POPLAR BLF | MO |
| 2013-04-09 | 573-772-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | POPLAR BLF | MO |
| 2009-03-09 | 573-772-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | POPLAR BLF | MO |
| 2013-04-09 | 573-772-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | POPLAR BLF | MO |
| 2009-06-25 | 573-772-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | POPLAR BLF | MO |
| 2025-08-27 | 573-772-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | POPLAR BLF | MO |
| — | 573-772-9XXX | 9000–9999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | POPLAR BLF | MO |
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.