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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-08-07 539-900-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2020-08-07 539-900-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2020-08-07 539-900-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2020-08-07 539-900-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2020-08-07 539-900-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2020-08-04 539-325-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2020-08-04 539-325-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2020-08-04 539-549-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2020-08-04 539-549-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2020-08-04 539-549-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2020-08-04 539-629-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2020-08-04 539-629-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2020-08-04 539-629-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2020-08-04 539-777-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2020-07-15 539-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H BARTLESVL OK
2020-07-15 539-529-9XXX 9000–9999Assigned FRACTEL, LLC 965H BARTLESVL OK
2020-07-15 539-577-7XXX 7000–7999Assigned FRACTEL, LLC 965H MIAMI OK
2020-07-15 539-766-3XXX 3000–3999Assigned FRACTEL, LLC 965H BROKENARRW OK
2020-07-15 539-766-6XXX 6000–6999Assigned FRACTEL, LLC 965H BROKENARRW OK
2020-07-09 539-424-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F TULSA OK
2020-07-09 539-549-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F TULSA OK
2020-07-09 539-549-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F TULSA OK
2020-07-09 539-666-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F TULSA OK
2020-07-09 539-666-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F TULSA OK
2020-07-02 539-216-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F CHECOTAH OK
2020-07-02 539-216-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F CHECOTAH OK
2020-07-01 539-348-6XXX 6000–6999Assigned FRACTEL, LLC 965H SO CHETOPA OK
2020-06-30 539-230-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SALLISAW OK
2020-06-18 539-232-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F WILBURTON OK
2020-06-17 539-207-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F CHELSEA OK
2020-06-17 539-207-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F CHELSEA OK
2020-06-17 539-209-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F WAGONER OK
2020-06-17 539-209-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F WAGONER OK
2020-06-17 539-265-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F SAPULPA OK
2020-06-17 539-265-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F SAPULPA OK
2020-06-17 539-345-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F GROVE OK
2020-06-17 539-345-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F GROVE OK
2020-06-17 539-500-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F KIEFER OK
2020-06-17 539-500-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F KIEFER OK
2020-06-17 539-589-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F SKIATOOK OK
2020-06-17 539-589-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F SKIATOOK OK
2020-06-17 539-600-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F HENRYETTA OK
2020-06-17 539-600-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F HENRYETTA OK
2020-06-17 539-866-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F OILTON OK
2020-06-17 539-866-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F OILTON OK
2020-06-16 539-224-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F WMAYSVILLE OK
2020-06-16 539-224-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F WMAYSVILLE OK
2020-06-16 539-245-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F POCOLA OK
2020-06-16 539-245-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F POCOLA OK
2020-06-16 539-328-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F COLCORD 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.