NumberResearchThousands-blocks in 713-234
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/21/2026
The ten 1,000-number thousand-blocks inside prefix 713-234 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 713 blocks
Most active assignees, all time — NPA 713
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2007-11-20 | 713-234-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SUGAR LAND | TX |
| 2009-06-22 | 713-234-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SUGAR LAND | TX |
| 2007-09-07 | 713-234-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL TELEPHONE COMPANY - TX | 7726 | SUGAR LAND | TX |
| 2011-06-03 | 713-234-3XXX | 3000–3999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | SUGAR LAND | TX |
| 2022-12-20 | 713-234-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | SUGAR LAND | TX |
| 2009-01-15 | 713-234-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | SUGAR LAND | TX |
| 2011-01-12 | 713-234-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SUGAR LAND | TX |
| 2008-03-05 | 713-234-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | SUGAR LAND | TX |
| 2009-01-26 | 713-234-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SUGAR LAND | TX |
| 2009-01-26 | 713-234-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SUGAR LAND | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.