NumberResearchThousands-blocks in 610-422
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/21/2026
The ten 1,000-number thousand-blocks inside prefix 610-422 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 610 blocks
Most active assignees, all time — NPA 610
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 610-422-0XXX | 0000–0999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHOENIXVL | PA |
| 2013-08-15 | 610-422-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | PHOENIXVL | PA |
| 2004-12-03 | 610-422-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | PHOENIXVL | PA |
| 2005-03-31 | 610-422-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PHOENIXVL | PA |
| — | 610-422-4XXX | 4000–4999 | Available | PHOENIXVL | PA | ||
| 2008-07-11 | 610-422-5XXX | 5000–5999 | Assigned | VERIZON PENNSYLVANIA, INC. | 9208 | PHOENIXVL | PA |
| — | 610-422-6XXX | 6000–6999 | Available | PHOENIXVL | PA | ||
| 2009-06-15 | 610-422-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | PHOENIXVL | PA |
| 2020-01-10 | 610-422-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | PHOENIXVL | PA |
| 2021-10-12 | 610-422-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PHOENIXVL | PA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.