NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

49 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 464
NEW CINGULAR WIRELESS PCS, LLC - IL 43
ONVOY, LLC 4
OPENTACT INC. 1
INTRADO 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
2023-08-04 464-217-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2023-08-04 464-217-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2023-08-01 464-221-0XXX 0000–0999Assigned ONVOY, LLC 224C BERWYN IL
2023-08-01 464-221-1XXX 1000–1999Assigned ONVOY, LLC 224C BERWYN IL
2023-07-21 464-222-4XXX 4000–4999Assigned COMMIO, LLC 939H MOKENA IL
2023-07-21 464-222-5XXX 5000–5999Assigned COMMIO, LLC 939H MOKENA IL
2023-07-21 464-222-6XXX 6000–6999Assigned COMMIO, LLC 939H MOKENA IL
2023-07-21 464-222-7XXX 7000–7999Assigned COMMIO, LLC 939H MOKENA IL
2023-07-21 464-222-8XXX 8000–8999Assigned COMMIO, LLC 939H MOKENA IL
2023-07-21 464-444-2XXX 2000–2999Assigned COMMIO, LLC 939H BEECHER IL
2023-07-21 464-444-3XXX 3000–3999Assigned COMMIO, LLC 939H BEECHER IL
2023-07-21 464-444-6XXX 6000–6999Assigned COMMIO, LLC 939H BEECHER IL
2023-07-21 464-444-7XXX 7000–7999Assigned COMMIO, LLC 939H BEECHER IL
2023-07-21 464-444-9XXX 9000–9999Assigned COMMIO, LLC 939H BEECHER IL
2023-07-18 464-216-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2023-07-18 464-216-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2023-07-18 464-216-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2023-07-18 464-216-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2023-07-18 464-216-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2023-07-18 464-216-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2023-07-18 464-218-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2023-07-18 464-218-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2023-07-18 464-218-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2023-07-18 464-218-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2023-07-18 464-218-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2023-07-18 464-224-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2023-07-18 464-224-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2023-07-18 464-224-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2023-07-18 464-224-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2023-07-18 464-224-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2023-07-18 464-225-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2023-07-18 464-225-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2023-07-18 464-225-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2023-07-18 464-225-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2023-07-14 464-646-1XXX 1000–1999Assigned ONVOY, LLC 224C PALOS PARK IL
2023-07-14 464-646-2XXX 2000–2999Assigned ONVOY, LLC 224C PALOS PARK IL
2023-07-14 464-646-3XXX 3000–3999Assigned ONVOY, LLC 224C PALOS PARK IL
2023-07-14 464-646-6XXX 6000–6999Assigned ONVOY, LLC 224C PALOS PARK IL
2023-07-14 464-646-9XXX 9000–9999Assigned ONVOY, LLC 224C PALOS PARK IL
2023-07-13 464-210-5XXX 5000–5999Assigned ONVOY, LLC 224C BLUEISLAND IL
2023-07-13 464-210-6XXX 6000–6999Assigned ONVOY, LLC 224C BLUEISLAND IL
2023-07-13 464-216-0XXX 0000–0999Assigned ONVOY, LLC 224C OAK FOR SO IL
2023-07-11 464-221-2XXX 2000–2999Assigned ONVOY, LLC 224C BERWYN IL
2023-07-11 464-223-2XXX 2000–2999Assigned ONVOY, LLC 224C PEOTONE IL
2023-07-07 464-333-9XXX 9000–9999Assigned ONVOY, LLC 224C HARVEY IL
2023-06-26 464-219-2XXX 2000–2999Assigned ONVOY, LLC 224C CICERO IL
2023-06-26 464-220-2XXX 2000–2999Assigned ONVOY, LLC 224C CRETE IL
2023-06-23 464-200-1XXX 1000–1999Assigned ONVOY, LLC 224C LANSING IL
2023-06-23 464-210-3XXX 3000–3999Assigned ONVOY, LLC 224C BLUEISLAND IL
2023-06-23 464-210-4XXX 4000–4999Assigned ONVOY, LLC 224C BLUEISLAND IL

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.