NumberResearch Membership · Data 09/22/2026

Recent prefix assignments

354 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026

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 26
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
2002-03-08 931-571 2XXX4XXX7XXX8XXX · 3 holders which blocks → POWERTEL NASHVILLE LICENSES, INC. 7476 TULLAHOMA TN
2002-03-08 978-270 4XXX5XXX6XXX7XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBURYPT MA
2002-03-08 978-500 4XXX6XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 IPSWICH MA
2002-03-08 978-766 1XXX2XXX3XXX4XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DANVERS MA
2002-03-07 253-266 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 AUBURN WA
2002-03-07 256-542 0XXX1XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MADISON AL
2002-03-07 276-698 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ABINGDON VA
2002-03-07 315-876 7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SYRACUSE NY
2002-03-07 315-877 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SYRACUSE NY
2002-03-07 319-237 2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → LOCAL TELEPHONE DATA SERVICES CORP. 2842 BURLINGTON IA
2002-03-07 319-241 not yet reported which blocks → T-MOBILE USA, INC. 6529 CEDAR RPDS IA
2002-03-07 401-301 not yet reported which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2002-03-07 423-358 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → POWERTEL NASHVILLE LICENSES, INC. 7476 ROGERSVL TN
2002-03-07 425-533 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BELLEVUE WA
2002-03-07 435-575 not yet reported which blocks → FIRSTDIGITAL TELECOM, LLC - UT 5727 PARK CITY UT
2002-03-07 480-255 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2002-03-07 602-446 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2002-03-07 615-489 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TN 4806 CARTHAGE TN
2002-03-07 615-583 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J MT JULIET TN
2002-03-07 615-656 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J FRANKLIN TN
2002-03-07 615-667 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J SPRINGFLD TN
2002-03-07 615-784 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J LEBANON TN
2002-03-07 623-225 5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2002-03-07 706-668 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 LAGRANGE GA
2002-03-07 713-497 1XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → SOUTHWESTERN BELL 9533 HOUSTON TX
2002-03-07 716-579 1XXX7XXX8XXX which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NIAGARAFLS NY
2002-03-07 717-387 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 WAYNESBORO PA
2002-03-07 719-289 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PUEBLO CO
2002-03-07 773-677 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN03 IL
2002-03-07 774-237 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J HARWICH MA
2002-03-07 780-704 not yet reported which blocks → TELUS 8084 Provost —
2002-03-07 780-788 not yet reported which blocks → TELUS 8084 Fort McMurray —
2002-03-07 870-273 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JONESBORO AR
2002-03-07 902-236 not yet reported which blocks → Bragg Communications Inc. 4878 Shubenacadie —
2002-03-07 902-242 not yet reported which blocks → Bragg Communications Inc. 4878 Kingston —
2002-03-07 902-260 not yet reported which blocks → Bragg Communications Inc. 4878 Saulnierville —
2002-03-07 902-342 not yet reported which blocks → Bragg Communications Inc. 4878 Musquodoboit Harbour —
2002-03-07 902-588 not yet reported which blocks → Bragg Communications Inc. 4878 Bridgetown —
2002-03-07 919-293 not yet reported which blocks → FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC 4334 DURHAM NC
2002-03-07 936-355 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUNTSVILLE TX
2002-03-06 256-415 3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 FLORENCE AL
2002-03-06 317-385 3XXX4XXX5XXX6XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 CICERO IN
2002-03-06 352-425 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 OCALA FL
2002-03-06 352-702 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 LEESBURG FL
2002-03-06 405-614 6XXX7XXX8XXX9XXX · 3 holders which blocks → UNITED STATES CELLULAR - OK 6272 STILLWATER OK
2002-03-06 409-344 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NDLDPTNCHS TX
2002-03-06 423-329 none assigned yet which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENEVL TN
2002-03-06 423-330 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ERWIN TN
2002-03-06 423-342 0XXX1XXX2XXX3XXX4XXX5XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ELIZABTHTN TN
2002-03-06 443-624 5XXX6XXX7XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 PRINCEFRCK MD

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.