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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2018-10-25 901-231-2XXX 2000–2999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F WESTWHITEV TN
2018-10-10 901-243-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F MUNFORD TN
2018-10-09 901-667-9XXX 9000–9999Assigned TELNYX LLC 073H WESTWHITEV TN
2018-09-26 901-306-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MOSCOW TN
2018-09-25 901-407-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F MILLINGTON TN
2018-09-19 901-390-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-09-14 901-441-1XXX 1000–1999Assigned TWIN LAKES COMMUNICATIONS, INC. - TN 204G MEMPHIS TN
2018-09-11 901-245-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARLINGTON TN
2018-09-11 901-245-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARLINGTON TN
2018-08-27 901-436-1XXX 1000–1999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F MEMPHIS TN
2018-08-17 901-306-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MOSCOW TN
2018-08-14 901-250-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F LAGRANGE TN
2018-08-14 901-667-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F WESTWHITEV TN
2018-08-13 901-293-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2018-08-13 901-293-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2018-08-13 901-293-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2018-08-13 901-293-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2018-08-13 901-293-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2018-08-13 901-293-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2018-08-13 901-293-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2018-08-13 901-293-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2018-08-13 901-426-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2018-08-08 901-431-0XXX 0000–0999Assigned AIRESPRING, INC. 996H MEMPHIS TN
2018-07-11 901-427-1XXX 1000–1999Assigned WEST KENTUCKY & TENNESSEE TELECOMMUNICATIONS CO-OP 337J MEMPHIS TN
2018-06-14 901-910-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLLIERVL TN
2018-06-14 901-910-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLLIERVL TN
2018-06-14 901-910-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLLIERVL TN
2018-06-08 901-306-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MOSCOW TN
2018-06-08 901-306-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MOSCOW TN
2018-06-08 901-341-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-06-08 901-341-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-06-08 901-545-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-06-08 901-545-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-05-08 901-520-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MILLINGTON TN
2018-04-30 901-667-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F WESTWHITEV TN
2018-04-16 901-306-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MOSCOW TN
2018-04-16 901-306-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MOSCOW TN
2018-04-16 901-306-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MOSCOW TN
2018-04-16 901-329-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F COVINGTON TN
2018-04-11 901-390-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F MEMPHIS TN
2018-04-11 901-390-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F MEMPHIS TN
2018-04-11 901-501-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-04-11 901-501-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-04-11 901-501-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-04-11 901-701-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-04-11 901-701-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-04-11 901-701-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-04-11 901-701-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2018-03-14 901-245-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARLINGTON TN
2018-03-09 901-245-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F ARLINGTON 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.