NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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, all time — NPA 205
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 224
NEW CINGULAR WIRELESS PCS, LLC - GA 92
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 84
PAETEC ITEL, LLC 53
POWERTEL BIRMINGHAM LICENSES, INC. 42
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
— 205-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AL
— 205-612 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
— 205-613 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BIRMINGHAM AL
— 205-616 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BIRMINGHAM AL
— 205-617 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BIRMINGHAM AL
— 205-618 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J CHELSEA AL
— 205-620 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ALABASTER AL
— 205-621 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ALABASTER AL
— 205-622 1XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → OAKMAN TEL. CO., INC. 0311 OAKMAN AL
— 205-623 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 BIRMINGHAM AL
— 205-624 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 ALABASTER AL
— 205-625 not yet reported which blocks → OTELCO TELEPHONE, LLC 0312 ONEONTA AL
— 205-626 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J MONTEVALLO AL
— 205-628 8XXX9XXX which blocks → PAETEC ITEL, LLC 829J CALERA AL
— 205-629 1XXX4XXX8XXX · 3 holders which blocks → WINDSTREAM ALABAMA, INC. 0302 ODENVILLE AL
— 205-630 not yet reported which blocks → SPOK, INC. 6630 TUSCALOOSA AL
— 205-631 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 GARDENDALE AL
— 205-633 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 TUSCALOOSA AL
— 205-636 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J W BLOCTON AL
— 205-637 0–9 XXXall 10 · 4 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K BIRMINGHAM AL
— 205-640 not yet reported which blocks → WINDSTREAM ALABAMA, INC. 0302 LEEDS AL
— 205-642 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J VINCENT AL
— 205-646 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 9789 THORSBY AL
— 205-647 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 WARRIOR AL
— 205-648 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 DORA AL
— 205-649 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 DORA AL
— 205-652 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LIVINGSTON AL
— 205-654 1XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → BUTLER TEL. CO., INC. 0284 PENNINGTON AL
— 205-655 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 9789 TRUSSVILLE AL
— 205-656 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F GORDO AL
— 205-657 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TUSCALOOSA AL
— 205-658 0XXX which blocks → BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 9789 ETHELSVL AL
— 205-660 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 MONTEVALLO AL
— 205-661 8XXX which blocks → BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 9789 TRUSSVILLE AL
— 205-662 2XXX6XXX7XXX · 2 holders which blocks → FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 0301 MILLPORT AL
— 205-663 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ALABASTER AL
— 205-664 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ALABASTER AL
— 205-665 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MONTEVALLO AL
— 205-667 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BIRMINGHAM AL
— 205-668 5XXX8XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 CALERA AL
— 205-669 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 COLUMBIANA AL
— 205-670 1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 COLUMBIANA AL
— 205-671 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 COLUMBIANA AL
— 205-672 4XXX5XXX6XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 VINCENT AL
— 205-673 not yet reported which blocks → BUTLER TEL. CO., INC. 0284 NEEDHAM AL
— 205-674 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 GRAYSVILLE AL
— 205-675 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 GRAYSVILLE AL
— 205-676 not yet reported which blocks → SPOK, INC. 6630 BIRMINGHAM AL
— 205-677 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 CHELSEA AL
— 205-678 1XXX4XXX5XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 CHELSEA AL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.