NumberResearchThousands-blocks in 903-386
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 903-386 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
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 903-386-0XXX | 0000–0999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | ATHENS | TX |
| 2021-11-03 | 903-386-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ATHENS | TX |
| 2021-11-03 | 903-386-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ATHENS | TX |
| 2009-01-23 | 903-386-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | ATHENS | TX |
| 2021-07-23 | 903-386-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ATHENS | TX |
| 2007-07-23 | 903-386-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ATHENS | TX |
| 2007-07-23 | 903-386-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ATHENS | TX |
| 2011-12-16 | 903-386-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ATHENS | TX |
| 2012-02-03 | 903-386-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ATHENS | TX |
| 2007-07-23 | 903-386-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ATHENS | 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.