NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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. 38
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
2002-10-10 507-491 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 FARIBAULT MN
2002-10-10 608-428 3XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PRARIDCHIN WI
2002-10-10 715-501 1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 STCROIXFLS WI
2002-10-10 719-792 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CO 6118 CANON CITY CO
2002-10-10 719-793 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CO 6118 WALSENBURG CO
2002-10-10 727-277 2XXX3XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 NWPTRICHEY FL
2002-10-10 848-448 0–9 XXXwhole prefix which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 TOMS RIVER NJ
2002-10-10 862-201 0XXX2XXX3XXX4XXX5XXX · 2 holders which blocks → METROPCS, INC. 5562 BELLEVILLE NJ
2002-10-10 862-202 5XXX7XXX8XXX which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BLOOMFIELD NJ
2002-10-10 862-203 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → METROPCS, INC. 5562 HAWTHORNE NJ
2002-10-10 862-204 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → METROPCS, INC. 5562 MADISON NJ
2002-10-10 862-205 0XXX2XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks → METROPCS, INC. 5562 SO ORANGE NJ
2002-10-10 862-206 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → METROPCS, INC. 5562 MILLBURN NJ
2002-10-10 862-207 0XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → METROPCS, INC. 5562 BOONTON NJ
2002-10-10 862-208 1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → METROPCS, INC. 5562 NUTLEY NJ
2002-10-10 862-209 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → METROPCS, INC. 5562 ROCKAWAY NJ
2002-10-10 863-662 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WINTER HVN FL
2002-10-10 908-220 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 ELIZABETH NJ
2002-10-10 912-218 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 WAYCROSS GA
2002-10-10 912-221 2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 JESUP GA
2002-10-10 912-240 7XXX which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 BAXLEY GA
2002-10-10 920-483 4XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 CHILTON WI
2002-10-09 250-686 not yet reported which blocks → Bell Mobility 6574 Victoria —
2002-10-09 307-216 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 LUSK WY
2002-10-09 307-217 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 BUFFALO WY
2002-10-09 413-422 0–9 XXXall 10 · 7 holders which blocks → VERIZON NEW ENGLAND INC. 9102 MILLERSFLS MA
2002-10-09 413-423 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 MILLERSFLS MA
2002-10-09 418-932 not yet reported which blocks → Bell Mobility 6574 Quebec —
2002-10-09 479-477 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DARDANELLE AR
2002-10-09 514-604 not yet reported which blocks → Bell Mobility 6574 Montreal —
2002-10-09 516-668 none assigned yet which blocks → METROPCS, INC. 5562 NASSAUZN03 NY
2002-10-09 516-669 0XXX3XXX8XXX which blocks → METROPCS, INC. 5562 NASSAUZN04 NY
2002-10-09 601-571 1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 2 holders which blocks → POWERTEL MEMPHIS LICENSES, INC. 7474 NATCHEZ MS
2002-10-09 601-628 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VICKSBURG MS
2002-10-09 601-647 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TELEPAK NETWORKS, INC. - MS 5278 CRYSTALSPG MS
2002-10-09 603-505 0–9 XXXall 10 · 3 holders which blocks → BELL ATLANTIC MOBILE, INC 6386 DERRY NH
2002-10-09 613-558 not yet reported which blocks → Bell Mobility 6574 Ottawa-Hull —
2002-10-09 631-741 4XXX7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2002-10-09 631-742 4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUNTINGTON NY
2002-10-09 631-902 3XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIVERHEAD NY
2002-10-09 631-903 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTHAMPTN NY
2002-10-09 678-756 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NW GA
2002-10-09 678-761 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NW GA
2002-10-09 678-763 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA SO GA
2002-10-09 678-764 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA SO GA
2002-10-09 709-640 not yet reported which blocks → Bell Mobility Aliant 329A Corner Brook —
2002-10-09 803-728 0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2002-10-09 828-487 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 HIGHLANDS NC
2002-10-09 845-405 0XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NANUET NY
2002-10-09 845-653 0XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → METROPCS, INC. 5562 PEARLRIVER NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.