NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 731
E. RITTER COMMUNICATIONS, LLC 3
ONVOY, LLC - TN 1
AHOI 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
2016-02-23 731-468-9XXX 9000–9999Assigned ONVOY, LLC - TN 525E CAMDEN TN
2016-02-22 731-400-4XXX 4000–4999Assigned ONVOY, LLC - TN 525E SAVANNAH TN
2016-02-22 731-400-5XXX 5000–5999Assigned ONVOY, LLC - TN 525E SAVANNAH TN
2016-02-18 731-203-9XXX 9000–9999Assigned ONVOY, LLC - TN 525E BOLIVAR TN
2016-02-18 731-503-2XXX 2000–2999Assigned ONVOY, LLC - TN 525E NEWBERN TN
2016-02-18 731-503-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E NEWBERN TN
2016-02-17 731-540-7XXX 7000–7999Assigned ONVOY, LLC - TN 525E PARIS TN
2016-02-17 731-540-8XXX 8000–8999Assigned ONVOY, LLC - TN 525E PARIS TN
2016-02-08 731-462-2XXX 2000–2999Assigned JACKSON ENERGY AUTHORITY - TN 150G MEDINA TN
2016-01-14 731-201-3XXX 3000–3999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F BIG SANDY TN
2016-01-14 731-203-5XXX 5000–5999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F BOLIVAR TN
2016-01-14 731-220-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F CAMDEN TN
2016-01-14 731-224-0XXX 0000–0999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F HALLS TN
2016-01-14 731-227-6XXX 6000–6999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F PARIS TN
2016-01-14 731-238-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F MILAN TN
2016-01-14 731-259-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F DYERSBURG TN
2016-01-14 731-389-0XXX 0000–0999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F UNION CITY TN
2016-01-14 731-393-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F MCKENZIE TN
2016-01-14 731-400-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F SAVANNAH TN
2016-01-14 731-418-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F HUNTINGDON TN
2016-01-14 731-419-0XXX 0000–0999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F RIPLEY TN
2016-01-14 731-420-7XXX 7000–7999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F HUMBOLDT TN
2016-01-14 731-442-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F RIDGELY TN
2016-01-14 731-451-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F HENNING TN
2016-01-14 731-462-0XXX 0000–0999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F MEDINA TN
2016-01-14 731-472-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F MIDDLETON TN
2016-01-14 731-474-3XXX 3000–3999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F GIBSON TN
2016-01-14 731-503-1XXX 1000–1999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F NEWBERN TN
2016-01-14 731-519-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F BROWNSVL TN
2016-01-14 731-595-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F HENDERSON TN
2016-01-14 731-624-3XXX 3000–3999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F TROY TN
2016-01-14 731-678-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F GREENFIELD TN
2016-01-14 731-681-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F GLEASON TN
2016-01-14 731-732-0XXX 0000–0999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F GRAND JCT TN
2016-01-14 731-798-7XXX 7000–7999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F LEXINGTON TN
2016-01-14 731-859-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F WHITEVILLE TN
2016-01-14 731-907-3XXX 3000–3999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F HORNBEAK TN
2016-01-14 731-937-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F KENTON TN
2016-01-14 731-982-0XXX 0000–0999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F SELMER TN
2016-01-11 731-227-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PARIS TN
2016-01-04 731-501-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F BELLS TN
2016-01-04 731-577-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F BETHEL SPG TN
2015-12-15 731-300-9XXX 9000–9999Assigned ONVOY, LLC - TN 525E JACKSON TN
2015-12-10 731-798-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON TN
2015-11-06 731-420-8XXX 8000–8999Assigned JACKSON ENERGY AUTHORITY - TN 150G HUMBOLDT TN
2015-11-03 731-437-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 JACKSON TN
2015-10-20 731-699-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DRESDEN TN
2015-10-16 731-214-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F CEDARGROVE TN
2015-09-24 731-499-8XXX 8000–8999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F JACKSON TN
2015-09-21 731-470-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F TRENTON 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.