NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
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
— 334-571 not yet reported which blocks → SPOK, INC. 6630 MONTGOMERY AL
— 334-572 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF FLORIDA COMPANY 0294 WING AL
— 334-573 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 9789 ALBERTA AL
— 334-576 not yet reported which blocks → KNOLOGY OF THE VALLEY, INC. 0371 HUGULEY AL
— 334-584 not yet reported which blocks → MON-CRE TEL. COOP., INC. 0305 PINE LEVEL AL
— 334-585 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 ABBEVILLE AL
— 334-588 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 HARTFORD AL
— 334-591 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - AL 604E AUBURN AL
— 334-596 8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 DOTHAN AL
— 334-598 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 DALEVILLE AL
— 334-601 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 XXXXXXXXXX AL
— 334-603 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F MONTGOMERY AL
— 334-606 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PHENIXCITY AL
— 334-607 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC - AL 604E MARION AL
— 334-608 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PHENIXCITY AL
— 334-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AL
— 334-612 1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MONTGOMERY AL
— 334-613 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MONTGOMERY AL
— 334-614 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 PHENIXCITY AL
— 334-615 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 DOTHAN AL
— 334-616 5XXX9XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 EUFAULA AL
— 334-617 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GREENVILLE AL
— 334-618 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 DOTHAN AL
— 334-619 not yet reported which blocks → PAETEC ITEL, LLC 829J EUFAULA AL
— 334-620 not yet reported which blocks → PAETEC ITEL, LLC 829J GREENSBORO AL
— 334-622 not yet reported which blocks → PAETEC ITEL, LLC 829J NEWVILLE AL
— 334-624 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 GREENSBORO AL
— 334-627 not yet reported which blocks → FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 4464 THOMASTON AL
— 334-628 1XXX7XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 UNIONTOWN AL
— 334-629 not yet reported which blocks → PAETEC ITEL, LLC 829J UNIONTOWN AL
— 334-632 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 ABBEVILLE AL
— 334-636 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 THOMASVL AL
— 334-637 4XXX5XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 THOMASVL AL
— 334-640 0–9 XXXall 10 · 5 holders which blocks → TELNYX LLC 073H TALLASSEE AL
— 334-642 not yet reported which blocks → KNOLOGY OF THE VALLEY, INC. 0371 WEST POINT AL
— 334-644 not yet reported which blocks → KNOLOGY OF THE VALLEY, INC. 0371 WEST POINT AL
— 334-647 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MONTGOMERY AL
— 334-650 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PHENIXCITY AL
— 334-651 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MONTGOMERY AL
— 334-657 none assigned yet which blocks → METROPCS, INC. 5562 MONTGOMERY AL
— 334-658 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANDALUSIA AL
— 334-663 none assigned yet which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 OPELIKA AL
— 334-664 not yet reported which blocks → PAETEC ITEL, LLC 829J PHENIXCITY AL
— 334-667 1XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HURTSBORO AL
— 334-670 7XXX8XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 TROY AL
— 334-671 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 DOTHAN AL
— 334-672 8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 TROY AL
— 334-673 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 DOTHAN AL
— 334-674 not yet reported which blocks → PAETEC ITEL, LLC 829J TROY AL
— 334-677 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 DOTHAN AL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.