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
2020-11-27 539-328-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F COLCORD OK
2020-11-27 539-328-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F COLCORD OK
2020-11-25 539-577-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F MIAMI OK
2020-11-25 539-577-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F MIAMI OK
2020-11-19 539-230-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 SALLISAW OK
2020-10-23 539-538-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F ASHLAND OK
2020-10-22 539-230-5XXX 5000–5999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H SALLISAW OK
2020-10-15 539-234-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F TAHLEQUAH OK
2020-10-15 539-234-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F TAHLEQUAH OK
2020-10-01 539-200-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F BARNSDALL OK
2020-10-01 539-203-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F STROUD OK
2020-10-01 539-214-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F FAIRFAX OK
2020-10-01 539-221-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F HASKELL OK
2020-10-01 539-321-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F MORRIS OK
2020-10-01 539-337-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F RAMONA OK
2020-10-01 539-449-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F PORTER OK
2020-10-01 539-489-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F SNUGHARBOR OK
2020-10-01 539-585-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F AVANT OK
2020-10-01 539-622-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F BOYNTON OK
2020-09-29 539-201-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C KIOWA OK
2020-09-14 539-247-7XXX 7000–7999Assigned FRACTEL, LLC 965H SHIDLER OK
2020-09-14 539-346-2XXX 2000–2999Assigned FRACTEL, LLC 965H DAVENPORT OK
2020-09-14 539-542-5XXX 5000–5999Assigned FRACTEL, LLC 965H JENNINGS OK
2020-09-14 539-724-6XXX 6000–6999Assigned FRACTEL, LLC 965H MANNFORD OK
2020-09-14 539-732-5XXX 5000–5999Assigned FRACTEL, LLC 965H OCHELATA OK
2020-09-14 539-786-7XXX 7000–7999Assigned FRACTEL, LLC 965H PRUE OK
2020-09-08 539-600-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HENRYETTA OK
2020-09-04 539-600-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HENRYETTA OK
2020-09-04 539-600-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HENRYETTA OK
2020-09-03 539-336-8XXX 8000–8999Assigned FRACTEL, LLC 965H CEDARCREST OK
2020-09-03 539-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H HITCHITA OK
2020-09-03 539-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H HITCHITA OK
2020-09-03 539-465-8XXX 8000–8999Assigned FRACTEL, LLC 965H AFTON OK
2020-09-03 539-946-3XXX 3000–3999Assigned FRACTEL, LLC 965H FORAKER OK
2020-08-26 539-239-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MUSKOGEE OK
2020-08-26 539-239-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MUSKOGEE OK
2020-08-26 539-239-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MUSKOGEE OK
2020-08-25 539-210-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRYOR OK
2020-08-25 539-234-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2020-08-21 539-218-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MUSKOGEE OK
2020-08-21 539-218-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MUSKOGEE OK
2020-08-21 539-218-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MUSKOGEE OK
2020-08-18 539-210-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F PRYOR OK
2020-08-13 539-500-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F KIEFER OK
2020-08-10 539-766-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BROKENARRW OK
2020-08-10 539-766-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BROKENARRW OK
2020-08-10 539-766-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BROKENARRW OK
2020-08-10 539-766-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BROKENARRW OK
2020-08-10 539-766-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BROKENARRW OK
2020-08-10 539-766-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BROKENARRW 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.