NumberResearch Membership · Data 09/23/2026

Recent prefix assignments

357 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/23/2026

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. 39
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - DC 27
ONVOY, LLC - NJ 20
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
2002-03-27 774-437 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WORCESTER MA
2002-03-27 786-285 not yet reported which blocks → METROPCS, INC. 5562 NORTH DADE FL
2002-03-27 786-426 not yet reported which blocks → METROPCS, INC. 5562 PERRINE FL
2002-03-27 810-400 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J MARINECITY MI
2002-03-27 810-616 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J FENTON MI
2002-03-27 810-800 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J HARTLAND MI
2002-03-27 810-828 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J DAVISON MI
2002-03-27 810-900 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J BRIGHTON MI
2002-03-27 813-355 0XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 ZEPHYRHILS FL
2002-03-27 865-335 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KNOXVILLE TN
2002-03-26 308-255 not yet reported which blocks → QWEST CORPORATION 9631 SIDNEY NE
2002-03-26 314-262 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MO 4932 LADUE MO
2002-03-26 321-363 0XXX1XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → METROPCS NETWORKS, LLC 899D SANFORD FL
2002-03-26 336-428 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ELKIN NC
2002-03-26 418-218 not yet reported which blocks → TELUS Mobility 8303 St-Felicien —
2002-03-26 418-618 not yet reported which blocks → TELUS Mobility 8303 St-Felicien —
2002-03-26 478-238 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 MACON GA
2002-03-26 506-939 not yet reported which blocks → Bragg Communications Inc. 4878 Sackville —
2002-03-26 571-223 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 LEESBURG VA
2002-03-26 765-238 3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GREENSFORK IN
2002-03-26 765-265 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LAUREL IN
2002-03-26 765-509 2XXX4XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 RIDGEVILLE IN
2002-03-26 765-541 3XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 CAMBDG CY IN
2002-03-26 765-546 3XXX4XXX5XXX6XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 WINCHESTER IN
2002-03-26 765-561 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 RUSHVILLE IN
2002-03-26 775-338 not yet reported which blocks → T-MOBILE USA, INC. 6529 RENO NV
2002-03-26 812-554 4XXX5XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 MEROM IN
2002-03-26 812-562 2XXX3XXX4XXX5XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LEWIS IN
2002-03-26 812-564 3XXX4XXX5XXX6XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SULLIVAN IN
2002-03-26 812-605 3XXX4XXX5XXX6XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 BRAZIL IN
2002-03-26 812-607 7XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 FAIRBANKS IN
2002-03-26 819-483 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 8377 Ottawa-Hull —
2002-03-26 828-783 0XXX1XXX3XXX7XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BANNER ELK NC
2002-03-26 908-247 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELIZABETH NJ
2002-03-26 908-917 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLAINFIELD NJ
2002-03-26 913-409 not yet reported which blocks → SOUTHWESTERN BELL 9533 KANSASCITY KS
2002-03-25 250-208 not yet reported which blocks → TELUS Mobility 8301 Victoria —
2002-03-25 262-384 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WEST BEND WI
2002-03-25 321-222 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J TITUSVILLE FL
2002-03-25 403-608 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Calgary —
2002-03-25 417-217 3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 HOUSTON MO
2002-03-25 417-393 0XXX1XXX3XXX5XXX6XXX7XXX · 5 holders which blocks → METROPCS, INC. 5562 MONETT MO
2002-03-25 479-966 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAYETTEVL AR
2002-03-25 507-210 2XXX3XXX4XXX5XXX7XXX8XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 FARIBAULT MN
2002-03-25 507-213 2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 OWATONNA MN
2002-03-25 509-237 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 EPHRATA WA
2002-03-25 512-855 0–9 XXXall 10 · 6 holders which blocks → AT&T - LOCAL 7421 LOCKHART TX
2002-03-25 519-719 not yet reported which blocks → TELUS Mobility 8303 London —
2002-03-25 541-249 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BAKER OR
2002-03-25 541-653 6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.