NumberResearchThousands-blocks in 830-351
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 830-351 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 830 blocks
Most active assignees, all time — NPA 830
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 |
|---|---|---|---|---|---|---|---|
| 2004-03-09 | 830-351-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LULING | TX |
| 2017-03-10 | 830-351-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | LULING | TX |
| 2014-04-08 | 830-351-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | LULING | TX |
| 2012-04-09 | 830-351-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LULING | TX |
| 2010-09-23 | 830-351-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LULING | TX |
| 2010-09-28 | 830-351-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LULING | TX |
| 2011-09-20 | 830-351-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | LULING | TX |
| 2011-11-14 | 830-351-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LULING | TX |
| 2014-01-14 | 830-351-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | LULING | TX |
| 2014-03-31 | 830-351-9XXX | 9000–9999 | Assigned | TWILIO INTERNATIONAL, INC. | 506J | LULING | 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.