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
2021-03-19 901-745-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2021-03-19 901-745-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2021-03-19 901-745-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2021-03-19 901-747-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2021-03-19 901-752-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2021-03-19 901-763-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2021-03-09 901-464-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MEMPHIS TN
2021-03-08 901-557-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E ARLINGTON TN
2021-03-08 901-557-4XXX 4000–4999Assigned ONVOY, LLC - TN 525E ARLINGTON TN
2021-02-15 901-231-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E WESTWHITEV TN
2021-02-15 901-676-9XXX 9000–9999Assigned ONVOY, LLC - TN 525E LAGRANGE TN
2021-02-15 901-699-1XXX 1000–1999Assigned ONVOY, LLC - TN 525E COVINGTON TN
2021-02-15 901-699-2XXX 2000–2999Assigned ONVOY, LLC - TN 525E COVINGTON TN
2021-02-15 901-813-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E SOMERVILLE TN
2021-02-15 901-899-1XXX 1000–1999Assigned ONVOY, LLC - TN 525E MOSCOW TN
2021-02-09 901-459-6XXX 6000–6999Assigned TELNYX LLC 073H SOMERVILLE TN
2021-02-09 901-460-0XXX 0000–0999Assigned TELNYX LLC 073H WESTWHITEV TN
2021-02-09 901-699-0XXX 0000–0999Assigned TELNYX LLC 073H COVINGTON TN
2021-02-09 901-899-0XXX 0000–0999Assigned TELNYX LLC 073H MOSCOW TN
2021-02-02 901-699-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F COVINGTON TN
2021-01-20 901-587-0XXX 0000–0999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2021-01-20 901-587-4XXX 4000–4999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2021-01-20 901-587-5XXX 5000–5999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2021-01-20 901-587-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2021-01-20 901-587-7XXX 7000–7999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2021-01-20 901-587-8XXX 8000–8999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2021-01-20 901-587-9XXX 9000–9999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2021-01-14 901-407-4XXX 4000–4999Assigned METROPCS, INC. 5562 MILLINGTON TN
2021-01-14 901-587-2XXX 2000–2999Assigned METROPCS, INC. 5562 MEMPHIS TN
2021-01-14 901-587-3XXX 3000–3999Assigned METROPCS, INC. 5562 MEMPHIS TN
2021-01-13 901-589-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MEMPHIS TN
2021-01-12 901-463-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MEMPHIS TN
2021-01-04 901-799-0XXX 0000–0999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2021-01-04 901-799-1XXX 1000–1999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2021-01-04 901-799-2XXX 2000–2999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2021-01-04 901-799-3XXX 3000–3999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2021-01-04 901-799-4XXX 4000–4999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2021-01-04 901-799-5XXX 5000–5999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2020-12-31 901-499-0XXX 0000–0999Assigned METROPCS, INC. 5562 ARLINGTON TN
2020-12-15 901-582-5XXX 5000–5999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-12-15 901-582-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-12-15 901-582-7XXX 7000–7999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-12-15 901-582-8XXX 8000–8999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2020-12-15 901-799-6XXX 6000–6999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F COLLIERVL TN
2020-12-15 901-878-6XXX 6000–6999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F LAGRANGE TN
2020-12-15 901-899-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F MOSCOW TN
2020-12-11 901-582-0XXX 0000–0999Assigned METROPCS, INC. 5562 MEMPHIS TN
2020-12-03 901-582-1XXX 1000–1999Assigned METROPCS, INC. 5562 MEMPHIS TN
2020-11-23 901-499-1XXX 1000–1999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F ARLINGTON TN
2020-11-23 901-582-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F 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.