NumberResearchThousands-blocks in 401-764
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 401-764 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 401 blocks
Most active assignees, all time — NPA 401
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 401-764-0XXX | 0000–0999 | Reserved | COMCAST IP PHONE, LLC | 318J | SCITUATE | RI |
| 2004-03-23 | 401-764-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | SCITUATE | RI |
| 2018-07-27 | 401-764-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - RI | 003F | SCITUATE | RI |
| 2008-04-16 | 401-764-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | SCITUATE | RI |
| 2002-05-29 | 401-764-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - RI | 003F | SCITUATE | RI |
| 2006-09-07 | 401-764-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | SCITUATE | RI |
| 2021-03-17 | 401-764-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SCITUATE | RI |
| 2015-11-06 | 401-764-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SCITUATE | RI |
| 2016-02-23 | 401-764-8XXX | 8000–8999 | Assigned | ONVOY, LLC - RI | 977E | SCITUATE | RI |
| 2016-02-23 | 401-764-9XXX | 9000–9999 | Assigned | ONVOY, LLC - RI | 977E | SCITUATE | RI |
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.