NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 815
VERSATEL LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 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
2023-06-27 815-859-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROCHELLE IL
2023-06-26 815-749-9XXX 9000–9999Assigned ONVOY, LLC 224C LOCKPORT IL
2023-06-26 815-763-7XXX 7000–7999Assigned ONVOY, LLC 224C JOLIET IL
2023-06-26 815-780-6XXX 6000–6999Assigned ONVOY, LLC 224C LA SALLE IL
2023-06-09 815-655-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J COAL CITY IL
2023-06-08 815-454-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SHEFFIELD IL
2023-06-07 815-571-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SHANNON IL
2023-06-07 815-849-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SUBLETTE IL
2023-06-07 815-982-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H TAMPICO IL
2023-06-06 815-576-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H POLO IL
2023-06-06 815-855-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MILLEDGEVL IL
2023-06-06 815-859-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ROCHELLE IL
2023-06-06 815-881-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H OREGON IL
2023-06-06 815-913-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CHADWICK IL
2023-06-06 815-989-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PROPHETSTN IL
2023-06-02 815-951-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H AMBOY IL
2023-05-22 815-554-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J E DUBUQUE IL
2023-05-22 815-888-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ROCHELLE IL
2023-05-10 815-763-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOLIET IL
2023-05-08 815-763-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 JOLIET IL
2023-05-05 815-604-4XXX 4000–4999Assigned ONVOY, LLC 224C BELVIDERE IL
2023-05-05 815-906-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MT CARROLL IL
2023-05-03 815-559-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CHENOA IL
2023-05-03 815-567-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CAMPUS IL
2023-05-03 815-647-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CULLOM IL
2023-05-03 815-688-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H STRAWN IL
2023-05-03 815-702-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SAUNEMIN IL
2023-05-03 815-998-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ODELL IL
2023-04-20 815-264-6XXX 6000–6999Assigned TELNYX LLC 073H WATERMAN IL
2023-04-19 815-333-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J WOODSTOCK IL
2023-04-17 815-763-5XXX 5000–5999Assigned ONVOY, LLC 224C JOLIET IL
2023-03-31 815-945-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J CHENOA IL
2023-03-27 815-310-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J UTICA IL
2023-03-16 815-944-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2023-02-27 815-443-3XXX 3000–3999Assigned ONVOY, LLC 224C PEARL CITY IL
2023-02-17 815-498-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SOMONAUK IL
2023-02-02 815-420-7XXX 7000–7999Assigned ONVOY, LLC 224C ROCKFORD IL
2023-01-17 815-969-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J ROCKFORD IL
2023-01-12 815-551-1XXX 1000–1999Assigned ONVOY, LLC 224C LANARK IL
2022-12-16 815-402-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J GALENA IL
2022-12-16 815-763-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2022-12-16 815-763-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2022-12-13 815-431-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 OTTAWA IL
2022-11-23 815-763-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 JOLIET IL
2022-11-21 815-331-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J MCHENRY IL
2022-11-17 815-443-6XXX 6000–6999Assigned ONVOY, LLC 224C PEARL CITY IL
2022-11-16 815-930-2XXX 2000–2999Assigned UNITED STATES CELLULAR - IL 6265 ELIZABETH IL
2022-11-16 815-930-4XXX 4000–4999Assigned UNITED STATES CELLULAR - IL 6265 ELIZABETH IL
2022-11-14 815-800-6XXX 6000–6999Assigned COMMIO, LLC 939H POPLAR GRV IL
2022-11-08 815-763-8XXX 8000–8999Assigned TELNYX LLC 073H JOLIET IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.