NumberResearchThousands-blocks in 903-722
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 903-722 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 903 blocks
Most active assignees, all time — NPA 903
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 |
|---|---|---|---|---|---|---|---|
| — | 903-722-0XXX | 0000–0999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HENDERSON | TX |
| 2007-02-27 | 903-722-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HENDERSON | TX |
| 2014-01-29 | 903-722-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | HENDERSON | TX |
| 2009-02-25 | 903-722-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HENDERSON | TX |
| 2009-09-30 | 903-722-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HENDERSON | TX |
| 2009-12-18 | 903-722-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HENDERSON | TX |
| 2012-01-24 | 903-722-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HENDERSON | TX |
| 2010-05-27 | 903-722-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HENDERSON | TX |
| 2012-06-20 | 903-722-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | HENDERSON | TX |
| 2014-01-29 | 903-722-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | HENDERSON | TX |
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.