NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

355 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
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
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
2001-10-05 309-883 6XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 KEWANEE IL
2001-10-05 402-718 5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2001-10-05 404-396 0XXX2XXX3XXX4XXX5XXX7XXX8XXX which blocks → METROPCS, INC. 5562 ATLANTA GA
2001-10-05 405-486 0XXX4XXX6XXX7XXX9XXX · 3 holders which blocks → SOUTHWESTERN BELL 9533 BRITTON OK
2001-10-05 478-458 not yet reported which blocks → WINDSTREAM GEORGIA COMMUNICATIONS CORP. 4332 MONTEZUMA GA
2001-10-05 480-343 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2001-10-05 480-430 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2001-10-05 514-773 not yet reported which blocks → Bell Mobility 6574 Montreal —
2001-10-05 519-992 not yet reported which blocks → Fido Solutions Inc. 5643 Windsor —
2001-10-05 614-942 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J WESTERVL OH
2001-10-05 631-806 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2001-10-05 631-921 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2001-10-05 704-449 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHARLOTTE NC
2001-10-05 802-310 0XXX2XXX3XXX · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 BURLINGTON VT
2001-10-05 802-683 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → METROPCS, INC. 5562 RUTLAND VT
2001-10-05 845-618 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → TC SYSTEMS, INC. - NY 7140 SLOATSBURG NY
2001-10-05 859-991 none assigned yet which blocks → T-MOBILE USA, INC. 6529 COVINGTON KY
2001-10-05 864-384 0XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SPARTANBG SC
2001-10-05 971-338 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 WOODBURN OR
2001-10-04 208-795 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7865 CALDWELL ID
2001-10-04 250-433 not yet reported which blocks → TELUS 8086 Sparwood —
2001-10-04 609-323 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J EWING NJ
2001-10-04 609-339 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 BARNEGAT NJ
2001-10-04 609-447 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J FLORENCE NJ
2001-10-04 609-535 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J VINCENTOWN NJ
2001-10-04 609-556 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J FORT DIX NJ
2001-10-04 609-566 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J LAMBERTVL NJ
2001-10-04 609-630 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J HIGHTSTOWN NJ
2001-10-04 609-668 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J MOUNTHOLLY NJ
2001-10-04 609-738 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 8 holders which blocks → PAETEC ITEL, LLC 829J NEW EGYPT NJ
2001-10-04 609-779 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J PLAINSBORO NJ
2001-10-04 609-802 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J TRENTON NJ
2001-10-04 609-836 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J PEMBERTON NJ
2001-10-04 609-975 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J MEDFORD NJ
2001-10-04 609-979 0XXX2XXX3XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J HOPEWELL NJ
2001-10-04 613-484 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Kingston —
2001-10-04 615-668 not yet reported which blocks → POWERTEL NASHVILLE LICENSES, INC. 7476 NASHVILLE TN
2001-10-04 615-755 3XXX4XXX5XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J OLDHICKORY TN
2001-10-04 615-756 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J GOODLETSVL TN
2001-10-04 615-757 3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J HENDERSNVL TN
2001-10-04 620-926 1XXX4XXX6XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDEPNDNCE KS
2001-10-04 620-988 1XXX2XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COFFEYVL KS
2001-10-04 706-442 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 COLUMBUS GA
2001-10-04 765-425 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ANDERSON IN
2001-10-04 770-256 not yet reported which blocks → METROPCS, INC. 5562 ATLANTA NE GA
2001-10-04 778-828 not yet reported which blocks → TELUS Mobility 8301 Vancouver —
2001-10-04 778-868 not yet reported which blocks → TELUS Mobility 8301 Vancouver —
2001-10-04 803-629 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2001-10-04 828-353 not yet reported which blocks → PAETEC ITEL, LLC 829J NEWTON NC
2001-10-04 856-208 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J BEAVER BRK NJ

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.