NumberResearchThousands-blocks in 361-646
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 361-646 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 361 blocks
Most active assignees, all time — NPA 361
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-08-21 | 361-646-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | REFUGIO | TX |
| 2016-04-21 | 361-646-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | REFUGIO | TX |
| 2022-01-21 | 361-646-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | REFUGIO | TX |
| — | 361-646-3XXX | 3000–3999 | Reserved | STPCS JOINT VENTURE, LLC | 4290 | REFUGIO | TX |
| 2012-04-19 | 361-646-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | REFUGIO | TX |
| 2017-11-29 | 361-646-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | REFUGIO | TX |
| 2021-05-18 | 361-646-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | REFUGIO | TX |
| — | 361-646-7XXX | 7000–7999 | Available | REFUGIO | TX | ||
| — | 361-646-8XXX | 8000–8999 | Available | REFUGIO | TX | ||
| — | 361-646-9XXX | 9000–9999 | Reserved | STPCS JOINT VENTURE, LLC | 4290 | REFUGIO | 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.