NumberResearchThousands-blocks in 682-503
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 682-503 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 682 blocks
Most active assignees, all time — NPA 682
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 682-503-0XXX | 0000–0999 | Reserved | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | EULESS | TX |
| 2010-09-23 | 682-503-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | EULESS | TX |
| 2006-04-13 | 682-503-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | EULESS | TX |
| 2025-01-07 | 682-503-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | EULESS | TX |
| 2007-05-31 | 682-503-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EULESS | TX |
| — | 682-503-5XXX | 5000–5999 | Reserved | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | EULESS | TX |
| 2006-08-17 | 682-503-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EULESS | TX |
| 2006-04-13 | 682-503-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | EULESS | TX |
| 2007-06-14 | 682-503-8XXX | 8000–8999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | EULESS | TX |
| 2010-10-01 | 682-503-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | EULESS | TX |
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.