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
2020-06-04 901-584-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2020-06-04 901-677-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2020-06-04 901-677-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2020-06-04 901-713-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2020-06-04 901-713-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2020-06-04 901-759-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2020-06-04 901-821-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2020-05-20 901-209-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E MOSCOW TN
2020-05-01 901-459-5XXX 5000–5999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F SOMERVILLE TN
2020-04-23 901-546-2XXX 2000–2999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-04-23 901-546-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-04-23 901-546-4XXX 4000–4999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-03-26 901-467-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2020-03-26 901-467-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2020-03-26 901-467-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MEMPHIS TN
2020-03-09 901-499-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARLINGTON TN
2020-03-09 901-499-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARLINGTON TN
2020-03-09 901-499-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARLINGTON TN
2020-03-09 901-499-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARLINGTON TN
2020-03-04 901-320-2XXX 2000–2999Assigned METROPCS, INC. 5562 MEMPHIS TN
2020-03-04 901-370-0XXX 0000–0999Assigned METROPCS, INC. 5562 MEMPHIS TN
2020-02-27 901-403-5XXX 5000–5999Assigned ONVOY, LLC - TN 525E ARLINGTON TN
2020-02-27 901-403-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E ARLINGTON TN
2020-02-27 901-403-7XXX 7000–7999Assigned ONVOY, LLC - TN 525E ARLINGTON TN
2020-02-27 901-403-8XXX 8000–8999Assigned ONVOY, LLC - TN 525E ARLINGTON TN
2020-02-27 901-446-2XXX 2000–2999Assigned ONVOY, LLC - TN 525E COLLIERVL TN
2020-02-27 901-446-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E COLLIERVL TN
2020-02-27 901-446-4XXX 4000–4999Assigned ONVOY, LLC - TN 525E COLLIERVL TN
2020-02-27 901-459-2XXX 2000–2999Assigned ONVOY, LLC - TN 525E SOMERVILLE TN
2020-02-27 901-459-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E SOMERVILLE TN
2020-02-27 901-459-4XXX 4000–4999Assigned ONVOY, LLC - TN 525E SOMERVILLE TN
2020-02-27 901-641-8XXX 8000–8999Assigned ONVOY, LLC - TN 525E SOMERVILLE TN
2020-02-26 901-370-1XXX 1000–1999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-02-26 901-370-2XXX 2000–2999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-02-26 901-370-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-02-26 901-370-7XXX 7000–7999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-02-26 901-370-8XXX 8000–8999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-02-24 901-287-2XXX 2000–2999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F MEMPHIS TN
2020-02-24 901-446-5XXX 5000–5999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2020-02-24 901-446-7XXX 7000–7999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2020-02-24 901-446-8XXX 8000–8999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2020-02-24 901-446-9XXX 9000–9999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2020-02-24 901-460-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F WESTWHITEV TN
2020-01-28 901-329-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F COVINGTON TN
2020-01-17 901-422-5XXX 5000–5999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-01-17 901-422-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-01-17 901-422-8XXX 8000–8999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-01-17 901-422-9XXX 9000–9999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-01-10 901-460-2XXX 2000–2999Assigned ONVOY, LLC - TN 525E WESTWHITEV TN
2020-01-10 901-460-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E WESTWHITEV 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.