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
2021-10-26 539-251-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F PRYOR OK
2021-10-26 539-251-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F PRYOR OK
2021-10-26 539-529-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F BARTLESVL OK
2021-10-26 539-589-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F SKIATOOK OK
2021-10-26 539-600-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F HENRYETTA OK
2021-10-26 539-842-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F JENKS OK
2021-10-26 539-842-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F JENKS OK
2021-10-26 539-842-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F JENKS OK
2021-10-22 539-305-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C KETCHUM OK
2021-10-22 539-465-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C AFTON OK
2021-10-19 539-240-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2021-10-19 539-240-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2021-10-11 539-243-9XXX 9000–9999Assigned METROPCS, INC. 5562 WATTS OK
2021-10-11 539-529-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2021-10-11 539-842-9XXX 9000–9999Assigned METROPCS, INC. 5562 JENKS OK
2021-10-05 539-955-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHELGIN OK
2021-10-05 539-955-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHELGIN OK
2021-09-24 539-351-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLAYTON OK
2021-09-24 539-351-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLAYTON OK
2021-09-20 539-348-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H SO CHETOPA OK
2021-09-16 539-257-1XXX 1000–1999Assigned CROSS WIRELESS, L.L.C. 148G CLEVELAND OK
2021-09-15 539-386-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F RIPLEY OK
2021-09-13 539-399-9XXX 9000–9999Assigned SKYE TELECOM LLC DBA SKYETEL 622J TULSA OK
2021-09-13 539-599-9XXX 9000–9999Assigned SKYE TELECOM LLC DBA SKYETEL 622J WATTS OK
2021-09-13 539-955-5XXX 5000–5999Assigned SKYE TELECOM LLC DBA SKYETEL 622J SOUTHELGIN OK
2021-08-25 539-250-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F BROKENARRW OK
2021-08-25 539-252-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F BROKENARRW OK
2021-08-25 539-252-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F BROKENARRW OK
2021-08-25 539-254-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F SPIRO OK
2021-08-25 539-254-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F SPIRO OK
2021-08-25 539-819-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F BARON OK
2021-08-24 539-248-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F BARNSDALL OK
2021-08-24 539-253-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F QUAPAW OK
2021-08-12 539-207-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F CHELSEA OK
2021-08-12 539-207-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F CHELSEA OK
2021-08-04 539-386-3XXX 3000–3999Assigned FRACTEL, LLC 965H RIPLEY OK
2021-08-04 539-432-8XXX 8000–8999Assigned FRACTEL, LLC 965H BRISTOW OK
2021-08-04 539-567-8XXX 8000–8999Assigned FRACTEL, LLC 965H SAPULPA OK
2021-08-04 539-667-8XXX 8000–8999Assigned FRACTEL, LLC 965H OKMULGEE OK
2021-08-04 539-758-6XXX 6000–6999Assigned FRACTEL, LLC 965H DEPEW OK
2021-08-04 539-789-9XXX 9000–9999Assigned FRACTEL, LLC 965H FORTGIBSON OK
2021-08-04 539-842-5XXX 5000–5999Assigned FRACTEL, LLC 965H JENKS OK
2021-08-03 539-208-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2021-08-03 539-208-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2021-08-03 539-228-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F GROVE OK
2021-08-03 539-250-0XXX 0000–0999Assigned COMMIO, LLC 939H BROKENARRW OK
2021-08-03 539-250-1XXX 1000–1999Assigned COMMIO, LLC 939H BROKENARRW OK
2021-08-03 539-250-2XXX 2000–2999Assigned COMMIO, LLC 939H BROKENARRW OK
2021-08-03 539-250-3XXX 3000–3999Assigned COMMIO, LLC 939H BROKENARRW OK
2021-07-23 539-203-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F STROUD 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.