NumberResearchThousands-blocks in 781-922
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 781-922 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 781 blocks
Most active assignees, all time — NPA 781
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2004-09-08 | 781-922-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | REVERE | MA |
| 2004-11-01 | 781-922-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | REVERE | MA |
| 2004-12-01 | 781-922-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | REVERE | MA |
| 2017-04-12 | 781-922-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | REVERE | MA |
| 2008-07-16 | 781-922-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | REVERE | MA |
| 2015-12-03 | 781-922-5XXX | 5000–5999 | Assigned | BARR TELL USA, INC. - MA | 732H | REVERE | MA |
| 2017-01-04 | 781-922-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | REVERE | MA |
| 2016-01-26 | 781-922-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | REVERE | MA |
| 2008-10-30 | 781-922-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | REVERE | MA |
| — | 781-922-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | REVERE | MA |
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.