NumberResearchThousands-blocks in 401-213
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 401-213 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
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 |
|---|---|---|---|---|---|---|---|
| 2005-12-08 | 401-213-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | CAROLINA | RI |
| 2012-05-02 | 401-213-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - RI | 003F | CAROLINA | RI |
| 2006-06-26 | 401-213-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7351 | CAROLINA | RI |
| 2004-08-05 | 401-213-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - RI | 4016 | CAROLINA | RI |
| 2013-01-23 | 401-213-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | CAROLINA | RI |
| 2015-04-29 | 401-213-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - RI | 003F | CAROLINA | RI |
| — | 401-213-6XXX | 6000–6999 | Reserved | COMCAST IP PHONE, LLC | 318J | CAROLINA | RI |
| 2015-11-06 | 401-213-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CAROLINA | RI |
| 2015-09-28 | 401-213-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF RHODE ISLAND, LLC - RI | 631G | CAROLINA | RI |
| 2008-10-29 | 401-213-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - RI | 003F | CAROLINA | 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.