NumberResearchThousands-blocks in 319-576
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 319-576 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 319 blocks
Most active assignees, all time — NPA 319
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 319-576-0XXX | 0000–0999 | Reserved | PAETEC ITEL, LLC | 829J | BURLINGTON | IA |
| 2012-09-10 | 319-576-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | BURLINGTON | IA |
| 2020-10-30 | 319-576-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | BURLINGTON | IA |
| 2016-04-12 | 319-576-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | BURLINGTON | IA |
| 2016-07-05 | 319-576-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BURLINGTON | IA |
| 2016-09-15 | 319-576-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BURLINGTON | IA |
| 2014-06-06 | 319-576-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | BURLINGTON | IA |
| 2011-11-15 | 319-576-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | BURLINGTON | IA |
| 2018-03-13 | 319-576-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BURLINGTON | IA |
| 2018-03-13 | 319-576-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BURLINGTON | IA |
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.