NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 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
2006-06-21 815-306-1XXX 1000–1999Assigned ACCESS ONE, INC. - IL 5447 LOCKPORT IL
2006-06-21 815-465-5XXX 5000–5999Assigned ACCESS ONE, INC. - IL 5447 GRANT PARK IL
2006-06-21 815-579-3XXX 3000–3999Assigned ACCESS ONE, INC. - IL 5447 LA SALLE IL
2006-06-21 815-907-0XXX 0000–0999Assigned ACCESS ONE, INC. - IL 5447 MANTENO IL
2006-06-20 815-980-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2006-06-20 815-980-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2006-06-20 815-980-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2006-06-19 815-556-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PLAINFIELD IL
2006-06-08 815-219-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CRYSTAL LK IL
2006-06-08 815-219-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CRYSTAL LK IL
2006-06-08 815-219-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CRYSTAL LK IL
2006-06-08 815-219-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CRYSTAL LK IL
2006-06-08 815-219-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CRYSTAL LK IL
2006-06-06 815-315-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD IL
2006-06-01 815-599-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 FREEPORT IL
2006-05-26 815-514-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2006-05-26 815-582-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2006-05-24 815-679-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MCHENRY IL
2006-05-18 815-847-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ROCKFORD IL
2006-05-17 815-276-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CRYSTAL LK IL
2006-05-17 815-403-7XXX 7000–7999Assigned METROPCS, INC. 5562 MCHENRY IL
2006-05-16 815-508-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DE KALB IL
2006-05-16 815-514-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2006-05-16 815-569-3XXX 3000–3999Assigned AERO NORTH COMMUNICATIONS, INC. - IL 443F CAPRON IL
2006-05-16 815-597-6XXX 6000–6999Assigned AERO NORTH COMMUNICATIONS, INC. - IL 443F GARDENPRRI IL
2006-05-16 815-765-6XXX 6000–6999Assigned AERO NORTH COMMUNICATIONS, INC. - IL 443F POPLAR GRV IL
2006-05-15 815-514-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOLIET IL
2006-05-12 815-209-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ROCKFORD IL
2006-05-12 815-209-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2006-05-11 815-326-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OGLESBY IL
2006-05-03 815-304-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J KANKAKEE IL
2006-05-03 815-401-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J KANKAKEE IL
2006-05-02 815-401-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 KANKAKEE IL
2006-05-01 815-501-2XXX 2000–2999Assigned METROPCS, INC. 5562 DE KALB IL
2006-04-14 815-596-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MARENGO IL
2006-04-14 815-926-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WILMINGTON IL
2006-04-13 815-349-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K MCHENRY IL
2006-04-13 815-416-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K MORRIS IL
2006-04-11 815-209-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2006-04-11 815-209-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2006-04-11 815-209-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2006-04-05 815-847-4XXX 4000–4999Assigned AERO NORTH COMMUNICATIONS, INC. - IL 443F ROCKFORD IL
2006-04-04 815-323-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELVIDERE IL
2006-04-04 815-323-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELVIDERE IL
2006-03-28 815-214-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 KANKAKEE IL
2006-03-27 815-713-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2006-03-27 815-721-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2006-03-27 815-721-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2006-03-24 815-313-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 OTTAWA IL
2006-03-22 815-822-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STREATOR IL

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.