NumberResearchThousands-blocks in 346-206
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 346-206 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 346 blocks
Most active assignees, all time — NPA 346
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 |
|---|---|---|---|---|---|---|---|
| 2014-12-24 | 346-206-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | SATSUMA | TX |
| 2014-12-24 | 346-206-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | SATSUMA | TX |
| 2015-06-18 | 346-206-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | SATSUMA | TX |
| 2015-03-26 | 346-206-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | SATSUMA | TX |
| 2015-04-30 | 346-206-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SATSUMA | TX |
| 2015-04-16 | 346-206-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SATSUMA | TX |
| 2015-03-13 | 346-206-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | SATSUMA | TX |
| 2015-03-17 | 346-206-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SATSUMA | TX |
| 2015-07-01 | 346-206-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SATSUMA | TX |
| 2015-07-01 | 346-206-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SATSUMA | 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.