NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 463
ONVOY, LLC - IN 16
OPENTACT INC. 1
NEW CINGULAR WIRELESS PCS, LLC - IL 1
INTRADO COMMUNICATIONS, LLC 1
HD CARRIER 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
2023-04-27 463-261-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 INDIANAPLS IN
2023-04-27 463-273-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARMEL IN
2023-04-27 463-273-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARMEL IN
2023-04-27 463-273-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARMEL IN
2023-04-27 463-273-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARMEL IN
2023-04-27 463-273-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARMEL IN
2023-04-19 463-280-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2023-04-19 463-280-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2023-04-19 463-280-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2023-04-19 463-280-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2023-04-19 463-280-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2023-04-18 463-687-1XXX 1000–1999Assigned TELNYX LLC 073H ACTON IN
2023-04-17 463-261-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D INDIANAPLS IN
2023-04-07 463-403-9XXX 9000–9999Assigned METROPCS, INC. 5562 FISHERS IN
2023-04-03 463-363-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D ZIONSVILLE IN
2023-04-03 463-363-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D ZIONSVILLE IN
2023-03-22 463-231-8XXX 8000–8999Assigned TELNYX LLC 073H INDIANAPLS IN
2023-03-13 463-281-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 FRANKLIN IN
2023-03-13 463-281-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 FRANKLIN IN
2023-03-08 463-247-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D MARIETTA IN
2023-03-08 463-257-9XXX 9000–9999Assigned ONVOY, LLC - IN 097D SHERIDAN IN
2023-03-06 463-273-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARMEL IN
2023-03-06 463-277-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENWOOD IN
2023-03-06 463-284-9XXX 9000–9999Assigned AT&T - LOCAL 7421 CHARLOTSVL IN
2023-02-27 463-766-1XXX 1000–1999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F SHELBYVL IN
2023-02-16 463-254-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CICERO IN
2023-02-09 463-257-1XXX 1000–1999Assigned BHN IP ENABLED SERVICES, LLC 045L SHERIDAN IN
2023-02-01 463-283-1XXX 1000–1999Assigned NUSO, LLC 732J GREENWOOD IN
2023-01-25 463-275-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D PLAINFIELD IN
2023-01-25 463-275-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D PLAINFIELD IN
2023-01-25 463-275-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D PLAINFIELD IN
2023-01-24 463-282-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 INDIANAPLS IN
2023-01-10 463-281-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 FRANKLIN IN
2023-01-06 463-280-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2023-01-06 463-280-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2023-01-06 463-280-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2023-01-06 463-280-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2023-01-06 463-280-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2023-01-05 463-278-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NOBLESVL IN
2023-01-03 463-254-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 CICERO IN
2023-01-03 463-261-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 INDIANAPLS IN
2022-12-07 463-362-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D BARGERSVL IN
2022-11-28 463-259-8XXX 8000–8999Assigned TELNYX LLC 073H CUMBERLAND IN
2022-11-22 463-252-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D ZIONSVILLE IN
2022-11-22 463-259-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D CUMBERLAND IN
2022-11-22 463-278-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D NOBLESVL IN
2022-11-22 463-278-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D NOBLESVL IN
2022-11-22 463-278-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D NOBLESVL IN
2022-11-15 463-251-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D FISHERS IN
2022-11-15 463-270-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D FISHERS IN

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.