NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

6 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 901
ONVOY, LLC - TN 4
NEW CINGULAR WIRELESS PCS, LLC - GA 1
E. RITTER COMMUNICATIONS, LLC 1
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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2014-08-18 901-567-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2014-08-18 901-567-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2014-08-18 901-567-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2014-08-18 901-609-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2014-08-18 901-609-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2014-08-18 901-609-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2014-08-18 901-609-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2014-08-18 901-609-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2014-08-18 901-609-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2014-08-18 901-609-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2014-08-14 901-504-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F ARLINGTON TN
2014-08-04 901-567-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MEMPHIS TN
2014-07-29 901-296-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F COVINGTON TN
2014-07-29 901-567-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J MEMPHIS TN
2014-07-14 901-609-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2014-07-11 901-509-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MEMPHIS TN
2014-07-08 901-567-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MEMPHIS TN
2014-06-27 901-410-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MEMPHIS TN
2014-06-27 901-531-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MEMPHIS TN
2014-06-20 901-414-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLLIERVL TN
2014-06-13 901-352-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F LAGRANGE TN
2014-06-13 901-352-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F LAGRANGE TN
2014-06-04 901-425-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2014-05-15 901-425-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MEMPHIS TN
2014-05-15 901-425-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MEMPHIS TN
2014-05-15 901-512-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J MEMPHIS TN
2014-05-09 901-512-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MEMPHIS TN
2014-05-09 901-512-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2014-05-09 901-512-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2014-04-17 901-425-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MEMPHIS TN
2014-04-17 901-425-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MEMPHIS TN
2014-04-15 901-512-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2014-04-15 901-512-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2014-04-15 901-512-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MEMPHIS TN
2014-04-04 901-296-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COVINGTON TN
2014-04-04 901-352-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAGRANGE TN
2014-04-04 901-401-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WESTWHITEV TN
2014-04-04 901-402-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MOSCOW TN
2014-04-04 901-414-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLLIERVL TN
2014-04-04 901-424-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SOMERVILLE TN
2014-04-04 901-504-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ARLINGTON TN
2014-04-02 901-296-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F COVINGTON TN
2014-04-02 901-401-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F WESTWHITEV TN
2014-04-02 901-424-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F SOMERVILLE TN
2014-04-02 901-424-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F SOMERVILLE TN
2014-03-21 901-296-8XXX 8000–8999Assigned E. RITTER COMMUNICATIONS, LLC 128L COVINGTON TN
2014-03-18 901-425-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MEMPHIS TN
2014-03-18 901-425-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MEMPHIS TN
2014-03-18 901-443-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2014-03-18 901-443-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN

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.