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
2020-04-09 815-947-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 STOCKTON IL
2020-03-16 815-201-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J SHERIDAN IL
2020-03-16 815-658-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J NEWARK IL
2020-03-06 815-853-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WENONA IL
2020-03-03 815-281-5XXX 5000–5999Assigned ONVOY, LLC 224C GALENA IL
2020-03-03 815-554-5XXX 5000–5999Assigned ONVOY, LLC 224C E DUBUQUE IL
2020-02-13 815-706-2XXX 2000–2999Assigned ONVOY, LLC 224C ROCKFORD IL
2020-02-13 815-706-3XXX 3000–3999Assigned ONVOY, LLC 224C ROCKFORD IL
2020-02-13 815-706-4XXX 4000–4999Assigned ONVOY, LLC 224C ROCKFORD IL
2020-02-12 815-269-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J DANFORTH IL
2020-02-12 815-707-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GILMAN IL
2020-02-10 815-635-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CHATSWORTH IL
2020-02-10 815-918-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CLIFTON IL
2020-02-06 815-465-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 GRANT PARK IL
2020-02-04 815-522-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 KIRKLAND IL
2019-12-16 815-706-5XXX 5000–5999Assigned ONVOY, LLC 224C ROCKFORD IL
2019-12-16 815-706-6XXX 6000–6999Assigned ONVOY, LLC 224C ROCKFORD IL
2019-12-16 815-706-7XXX 7000–7999Assigned ONVOY, LLC 224C ROCKFORD IL
2019-12-06 815-991-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SYCAMORE IL
2019-11-22 815-892-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 STILMANVLY IL
2019-11-21 815-296-1XXX 1000–1999Assigned TELNYX LLC 073H ROCKFORD IL
2019-10-18 815-420-3XXX 3000–3999Assigned ONVOY, LLC 224C ROCKFORD IL
2019-10-18 815-420-4XXX 4000–4999Assigned ONVOY, LLC 224C ROCKFORD IL
2019-10-15 815-745-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WARREN IL
2019-10-15 815-946-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 POLO IL
2019-10-11 815-906-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MT CARROLL IL
2019-10-09 815-640-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 OTTAWA IL
2019-10-01 815-859-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D ROCHELLE IL
2019-10-01 815-862-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 RICHMOND IL
2019-09-24 815-551-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LANARK IL
2019-09-24 815-855-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MILLEDGEVL IL
2019-09-17 815-599-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FREEPORT IL
2019-09-11 815-500-0XXX 0000–0999Assigned FRACTEL, LLC 965H MARSEILLES IL
2019-09-03 815-706-1XXX 1000–1999Assigned EXIANT COMMUNICATIONS LLC 114J ROCKFORD IL
2019-08-30 815-613-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DIXON IL
2019-08-21 815-658-0XXX 0000–0999Assigned TELNYX LLC 073H NEWARK IL
2019-08-14 815-391-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2019-08-14 815-420-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2019-08-14 815-909-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DE KALB IL
2019-08-09 815-396-8XXX 8000–8999Assigned ONVOY, LLC 224C STEWARD IL
2019-08-09 815-542-3XXX 3000–3999Assigned ONVOY, LLC 224C THOMAS IL
2019-08-09 815-576-2XXX 2000–2999Assigned ONVOY, LLC 224C POLO IL
2019-08-09 815-595-8XXX 8000–8999Assigned ONVOY, LLC 224C OREGON IL
2019-08-09 815-849-8XXX 8000–8999Assigned ONVOY, LLC 224C SUBLETTE IL
2019-08-09 815-864-8XXX 8000–8999Assigned ONVOY, LLC 224C SHANNON IL
2019-08-09 815-982-3XXX 3000–3999Assigned ONVOY, LLC 224C TAMPICO IL
2019-08-09 815-989-2XXX 2000–2999Assigned ONVOY, LLC 224C PROPHETSTN IL
2019-08-09 815-991-4XXX 4000–4999Assigned ONVOY, LLC 224C SYCAMORE IL
2019-08-08 815-240-3XXX 3000–3999Assigned ONVOY, LLC 224C ROCK CUT IL
2019-08-08 815-240-5XXX 5000–5999Assigned ONVOY, LLC 224C ROCK CUT 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.