Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days
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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2015-12-14 715-916 0–9 XXXall 10 · 4 holders which blocks → NET LEC, INC. 6183 SHAWANO WI
2015-12-14 848-269 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NJ 637C NEWBRNSWCK NJ
2015-12-14 862-212 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NJ 637C ORANGE NJ
2015-12-14 931-263 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - TN 525E CLARKSVL TN
2015-12-14 984-206 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 RAL DUR AP NC
2015-12-11 209-203 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ATWATER CA
2015-12-11 385-630 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 SALT LAKE UT
2015-12-11 480-401 0–9 XXXall 10 · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2015-12-11 484-506 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 ALLENTOWN PA
2015-12-11 484-773 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E ALLENTOWN PA
2015-12-11 586-257 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLCV - MI 543C MT CLEMENS MI
2015-12-11 587-621 not yet reported which blocks → TELUS 8084 Blackfalds —
2015-12-11 717-727 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E HARISBGZN1 PA
2015-12-11 807-770 not yet reported which blocks → Iristel Inc. 154E Atikokan —
2015-12-11 970-271 0–9 XXXwhole prefix which blocks → QWEST CORPORATION 9636 GRAND JCT CO
2015-12-10 224-219 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC 224C WAUKEGAN IL
2015-12-10 331-204 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC 224C NAPERVILLE IL
2015-12-10 346-814 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2015-12-10 346-818 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 CYPRESS TX
2015-12-10 352-204 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - FL 937C GAINESVL FL
2015-12-10 469-771 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - TX 903C LEWISVILLE TX
2015-12-10 587-619 not yet reported which blocks → TELUS 8084 Calgary —
2015-12-10 587-620 not yet reported which blocks → TELUS 8084 Calgary —
2015-12-10 813-993 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C TAMPAEST FL
2015-12-09 205-730 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 BIRMINGHAM AL
2015-12-09 224-998 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 SKOKIE IL
2015-12-09 240-847 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - MD 876D WSHNGTNZN3 MD
2015-12-09 502-305 0–9 XXXwhole prefix which blocks → ONVOY, LLC - KY 896E LOUISVILLE KY
2015-12-09 518-849 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 8 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E DANNEMORA NY
2015-12-09 518-940 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E CHATEAUGAY NY
2015-12-09 561-814 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 WPALMBEACH FL
2015-12-09 585-539 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E CUBA NY
2015-12-09 603-408 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BERLIN NH
2015-12-09 647-842 not yet reported which blocks → Bell Mobility 6574 Toronto —
2015-12-09 651-440 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2015-12-09 775-508 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 CARSON PL NV
2015-12-09 778-509 not yet reported which blocks → Comwave Networks 160G Fort St. John —
2015-12-09 845-203 0–9 XXXall 10 · 3 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E CALLICOON NY
2015-12-09 929-810 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC- NY 384C NWYRCYZN04 NY
2015-12-09 941-260 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C SARASOTA FL
2015-12-09 956-815 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - TX 903C LAREDO TX
2015-12-08 208-509 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 BOISE ID
2015-12-08 234-458 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CANTON OH
2015-12-08 317-794 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - IN 097D INDIANAPLS IN
2015-12-08 346-214 0–9 XXXwhole prefix which blocks → ONVOY, LLC - TX 903C HOUSTON TX
2015-12-08 346-340 0–9 XXXwhole prefix which blocks → ONVOY, LLC - TX 903C HSTNSUBURB TX
2015-12-08 506-513 not yet reported which blocks → Aliant Telecom(NB) 8090 Bathurst —
2015-12-08 506-514 not yet reported which blocks → Aliant Telecom(NB) 8090 Edmundston —
2015-12-08 506-515 not yet reported which blocks → Aliant Telecom(NB) 8090 Fredericton —
2015-12-08 506-517 not yet reported which blocks → Aliant Telecom(NB) 8090 Miramichi —

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.