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 616
NEW CINGULAR WIRELESS PCS, LLC - IL 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 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
2013-10-22 616-226-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J GRAND RPDS MI
2013-10-22 616-426-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2013-10-18 616-552-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E GRAND RPDS MI
2013-10-10 616-537-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C LAKEODESSA MI
2013-10-09 616-378-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J JAMESTOWN MI
2013-10-04 616-414-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANDHAVEN MI
2013-09-12 616-226-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2013-08-23 616-835-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GREENVILLE MI
2013-08-12 616-216-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2013-08-12 616-216-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2013-08-06 616-202-0XXX 0000–0999Assigned XO COMMUNICATIONS SERVICES, INC. - MI 4125 GRAND RPDS MI
2013-08-01 616-552-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7157 GRAND RPDS MI
2013-07-30 616-951-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ROCKFORD MI
2013-07-26 616-843-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDHAVEN MI
2013-07-25 616-226-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J GRAND RPDS MI
2013-07-16 616-383-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SPARTA MI
2013-07-11 616-439-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E CEDAR SPG MI
2013-06-26 616-368-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLAND MI
2013-06-14 616-323-4XXX 4000–4999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2013-06-14 616-323-5XXX 5000–5999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2013-06-05 616-294-2XXX 2000–2999Assigned METROPCS, INC. 5562 HOLLAND MI
2013-06-05 616-426-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2013-06-05 616-426-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2013-05-30 616-216-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ADA MI
2013-05-22 616-379-2XXX 2000–2999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L HUDSONVL MI
2013-05-15 616-288-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2013-05-15 616-294-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLAND MI
2013-04-30 616-259-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2013-04-30 616-259-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2013-04-30 616-259-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2013-04-30 616-523-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K IONIA MI
2013-04-03 616-294-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOLLAND MI
2013-03-11 616-303-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GREENVILLE MI
2013-02-21 616-253-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C MOLINE MI
2013-02-21 616-294-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2013-02-21 616-319-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C LOWELL MI
2013-02-21 616-326-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ROCKFORD MI
2013-02-21 616-378-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C JAMESTOWN MI
2013-02-21 616-379-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2013-02-21 616-383-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C SPARTA MI
2013-02-21 616-414-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C GRANDHAVEN MI
2013-02-21 616-449-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C FREEPORT MI
2013-02-21 616-512-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C DUTTON MI
2013-02-21 616-537-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C LAKEODESSA MI
2013-02-21 616-557-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C SAND LAKE MI
2013-02-21 616-577-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C SARANAC MI
2013-02-21 616-681-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C DORR MI
2013-02-21 616-691-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C GRATTAN MI
2013-02-21 616-741-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ZEELAND MI
2013-02-21 616-841-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C IONIA MI

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.