NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 539
NEW CINGULAR WIRELESS PCS, LLC - IL 4
ONVOY, LLC - OK 3
TELEPORT COMMUNICATIONS AMERICA OK - LLC 1
OPENTACT INC. 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
2021-12-30 539-758-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F DEPEW OK
2021-12-23 539-228-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GROVE OK
2021-12-21 539-271-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J TULSA OK
2021-12-20 539-267-0XXX 0000–0999Assigned TELNYX LLC 073H CHELSEA OK
2021-12-14 539-260-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BROKENARRW OK
2021-12-14 539-260-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BROKENARRW OK
2021-12-14 539-260-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BROKENARRW OK
2021-12-14 539-277-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F COWETA OK
2021-12-13 539-251-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F PRYOR OK
2021-12-13 539-257-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F CLEVELAND OK
2021-12-13 539-263-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HENRYETTA OK
2021-12-13 539-264-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F KIEFER OK
2021-12-13 539-667-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OKMULGEE OK
2021-12-13 539-737-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F WILBURTON OK
2021-12-10 539-250-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BROKENARRW OK
2021-12-10 539-250-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BROKENARRW OK
2021-12-09 539-268-1XXX 1000–1999Assigned CROSS CABLE TELEVISION, LLC - OK 809H SKIATOOK OK
2021-12-09 539-289-1XXX 1000–1999Assigned CROSS CABLE TELEVISION, LLC - OK 809H DRUMRIGHT OK
2021-12-07 539-214-0XXX 0000–0999Assigned CROSS CABLE TELEVISION, LLC - OK 809H FAIRFAX OK
2021-12-07 539-567-1XXX 1000–1999Assigned CROSS CABLE TELEVISION, LLC - OK 809H SAPULPA OK
2021-12-07 539-866-4XXX 4000–4999Assigned CROSS CABLE TELEVISION, LLC - OK 809H OILTON OK
2021-12-01 539-667-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H OKMULGEE OK
2021-11-30 539-263-1XXX 1000–1999Assigned TELNYX LLC 073H HENRYETTA OK
2021-11-24 539-262-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MUSKOGEE OK
2021-11-21 539-593-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H TULSA OK
2021-11-21 539-901-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H TULSA OK
2021-11-21 539-901-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H TULSA OK
2021-11-21 539-901-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H TULSA OK
2021-11-21 539-901-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H TULSA OK
2021-11-21 539-901-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H TULSA OK
2021-11-21 539-901-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H TULSA OK
2021-11-21 539-901-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H TULSA OK
2021-11-21 539-901-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H TULSA OK
2021-11-21 539-901-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H TULSA OK
2021-11-18 539-267-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F CHELSEA OK
2021-11-18 539-267-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F CHELSEA OK
2021-11-18 539-300-0XXX 0000–0999Assigned FRACTEL, LLC 965H WESTVILLE OK
2021-11-17 539-203-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F STROUD OK
2021-11-17 539-386-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F RIPLEY OK
2021-11-17 539-789-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F FORTGIBSON OK
2021-11-17 539-789-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F FORTGIBSON OK
2021-11-15 539-263-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HENRYETTA OK
2021-11-15 539-264-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F KIEFER OK
2021-11-15 539-737-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F WILBURTON OK
2021-11-12 539-667-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OKMULGEE OK
2021-11-08 539-245-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 POCOLA OK
2021-11-08 539-352-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 MOFFETT OK
2021-11-05 539-261-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F SOCOFFEYVL OK
2021-11-02 539-842-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F JENKS OK
2021-11-02 539-842-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F JENKS OK

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.