NumberResearch Membership · Data 09/29/2026

Recent prefix assignments

347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026

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
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
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
2019-03-15 782-788 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Halifax —
2019-03-15 782-880 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Halifax —
2019-03-15 782-881 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Halifax —
2019-03-15 910-837 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks → SOUTH CAROLINA NET, INC. - NC 511C TABOR CITY NC
2019-03-15 951-498 0–9 XXXall 10 · 3 holders which blocks → METROPCS NETWORKS, LLC 899D ELSINORE CA
2019-03-15 986-222 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H RIGBY ID
2019-03-14 313-774 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E DETROITZN1 MI
2019-03-14 367-886 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2019-03-14 367-888 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2019-03-14 367-889 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2019-03-14 414-626 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - WI 225C MILWAUKZN5 WI
2019-03-14 463-400 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H OAKLANDON IN
2019-03-14 463-900 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H INDIANAPLS IN
2019-03-14 470-877 0–9 XXXall 10 · 2 holders which blocks → TERRA NOVA TELECOM INC. 145J ATLANTA GA
2019-03-14 581-557 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2019-03-14 581-686 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2019-03-14 581-699 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2019-03-14 581-787 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2019-03-14 581-898 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2019-03-14 581-955 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2019-03-14 581-977 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Quebec —
2019-03-14 609-293 0–9 XXXall 10 · 3 holders which blocks → CORETEL NEW JERSEY, INC. - NJ 482F FORT DIX NJ
2019-03-14 620-900 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H BUCKLIN KS
2019-03-14 629-400 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H EASTSANGO TN
2019-03-14 657-374 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2019-03-14 657-399 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ANA CA
2019-03-14 657-410 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SILVERADO CA
2019-03-14 910-901 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - NC 638E PARKTON NC
2019-03-14 920-802 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - WI 225C SHEBOGNFLS WI
2019-03-14 930-999 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H RAMSEY IN
2019-03-14 980-303 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → ONVOY, LLC - NC 638E GOOSECREEK NC
2019-03-13 414-420 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - WI 225C MILWAUKZN4 WI
2019-03-13 754-238 0–9 XXXall 10 · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 POMPANOBCH FL
2019-03-13 786-672 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 MIAMI FL
2019-03-13 856-508 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 PITMAN NJ
2019-03-13 941-261 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 VENICE FL
2019-03-13 941-262 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SARASOTA FL
2019-03-12 269-895 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLCV - MI 543C ALLEGAN MI
2019-03-12 270-807 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 OAK GROVE KY
2019-03-12 405-861 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 EDMOND OK
2019-03-12 431-383 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Winnipeg —
2019-03-12 431-552 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Winnipeg —
2019-03-12 431-553 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Winnipeg —
2019-03-12 431-559 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Winnipeg —
2019-03-12 431-655 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Winnipeg —
2019-03-12 431-899 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Winnipeg —
2019-03-12 431-989 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Winnipeg —
2019-03-12 478-900 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → TERRA NOVA TELECOM INC. 145J LOUISVILLE GA
2019-03-12 509-666 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H SPOKANE WA
2019-03-12 681-261 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FALLNGWTRS WV

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.