NumberResearchThousands-blocks in 601-746
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 601-746 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 601 blocks
Most active assignees, all time — NPA 601
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 601-746-0XXX | 0000–0999 | Reserved | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | POPLARVL | MS |
| 2016-07-21 | 601-746-1XXX | 1000–1999 | Assigned | AIRUS, INC. - MS | 459H | POPLARVL | MS |
| 2010-02-04 | 601-746-2XXX | 2000–2999 | Assigned | CELLULAR SOUTH, INC. | 6581 | POPLARVL | MS |
| 2016-02-05 | 601-746-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MS | 4886 | POPLARVL | MS |
| 2017-07-17 | 601-746-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MS | 992E | POPLARVL | MS |
| 2009-10-28 | 601-746-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | POPLARVL | MS |
| 2020-12-15 | 601-746-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | POPLARVL | MS |
| 2019-09-10 | 601-746-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | POPLARVL | MS |
| 2018-07-12 | 601-746-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | POPLARVL | MS |
| 2017-12-01 | 601-746-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | POPLARVL | MS |
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.