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
2013-02-05 901-290-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F ARLINGTON TN
2013-02-05 901-352-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F LAGRANGE TN
2013-02-05 901-509-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MEMPHIS TN
2013-02-05 901-509-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MEMPHIS TN
2013-02-05 901-860-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F COLLIERVL TN
2013-02-05 901-860-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F COLLIERVL TN
2013-01-09 901-228-0XXX 0000–0999Assigned METROPCS, INC. 5562 MEMPHIS TN
2013-01-09 901-228-1XXX 1000–1999Assigned METROPCS, INC. 5562 MEMPHIS TN
2013-01-09 901-228-2XXX 2000–2999Assigned METROPCS, INC. 5562 MEMPHIS TN
2013-01-09 901-228-3XXX 3000–3999Assigned METROPCS, INC. 5562 MEMPHIS TN
2013-01-09 901-228-4XXX 4000–4999Assigned METROPCS, INC. 5562 MEMPHIS TN
2013-01-09 901-228-5XXX 5000–5999Assigned METROPCS, INC. 5562 MEMPHIS TN
2013-01-09 901-228-6XXX 6000–6999Assigned METROPCS, INC. 5562 MEMPHIS TN
2013-01-09 901-228-7XXX 7000–7999Assigned METROPCS, INC. 5562 MEMPHIS TN
2013-01-09 901-228-8XXX 8000–8999Assigned METROPCS, INC. 5562 MEMPHIS TN
2013-01-09 901-228-9XXX 9000–9999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2012-12-27 901-206-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2012-12-27 901-206-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2012-12-27 901-206-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2012-12-27 901-207-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2012-12-27 901-232-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2012-12-27 901-860-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLLIERVL TN
2012-12-03 901-410-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2012-12-03 901-410-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2012-11-26 901-207-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MEMPHIS TN
2012-11-19 901-444-5XXX 5000–5999Assigned ONVOY, LLC - TN 525E ARLINGTON TN
2012-11-19 901-444-8XXX 8000–8999Assigned ONVOY, LLC - TN 525E ARLINGTON TN
2012-11-19 901-444-9XXX 9000–9999Assigned ONVOY, LLC - TN 525E ARLINGTON TN
2012-11-15 901-244-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MEMPHIS TN
2012-11-14 901-505-0XXX 0000–0999Assigned TELEPAK NETWORKS, INC. - TN 948G MEMPHIS TN
2012-11-06 901-208-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2012-10-23 901-410-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2012-10-23 901-410-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2012-10-23 901-410-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2012-10-23 901-410-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2012-10-23 901-410-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2012-10-23 901-410-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2012-10-17 901-407-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MILLINGTON TN
2012-10-15 901-207-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2012-10-15 901-800-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2012-10-05 901-574-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2012-10-05 901-820-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2012-09-27 901-235-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SOMERVILLE TN
2012-09-06 901-500-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2012-09-06 901-500-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2012-09-06 901-500-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2012-09-06 901-500-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2012-08-29 901-402-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MOSCOW TN
2012-08-27 901-321-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MEMPHIS TN
2012-08-22 901-402-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MOSCOW 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.