NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 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, all time — NPA 484
PAETEC ITEL, LLC 152
LEVEL 3 COMMUNICATIONS, LLC - PA 129
ONVOY, LLC - PA 78
OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 62
NEW CINGULAR WIRELESS PCS, LLC - DC 53
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
2002-10-18 484-744 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN30 PA
2002-10-01 484-364 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 DOWNINGTN PA
2002-10-01 484-369 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 ROYERSFORD PA
2002-09-30 484-213 none assigned yet which blocks → METROPCS, INC. 5562 PHPHSBZN30 PA
2002-09-30 484-222 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → METROPCS, INC. 5562 PHPHSBZN25 PA
2002-09-30 484-300 0XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → METROPCS, INC. 5562 POTTSTOWN PA
2002-09-30 484-302 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHOENIXVL PA
2002-09-30 484-326 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN13 PA
2002-09-30 484-330 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 SLATINGTON PA
2002-09-27 484-318 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN28 PA
2002-09-27 484-319 0XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 W CHESTER PA
2002-08-27 484-854 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 COLLEGEVL PA
2002-04-10 484-464 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 LEHIGHTON PA
2002-04-09 484-205 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J CENTER PT PA
2002-03-27 484-201 0XXX1XXX2XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 ALLENTOWN PA
2002-02-01 484-620 2XXX3XXX4XXX5XXX7XXX which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN26 PA
2002-01-18 484-868 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN30 PA
2002-01-03 484-488 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 CATASAUQUA PA
2001-12-12 484-499 4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → COMMONWEALTH TELEPHONE COMPANY LLC 0161 COOPERSBG PA
2001-11-26 484-248 3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → COMMONWEALTH TELEPHONE COMPANY LLC 0161 LEESPORT PA
2001-11-13 484-767 1XXX3XXX4XXX which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 BETHLEHEM PA
2001-10-29 484-794 2XXX3XXX4XXX which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 READING PA
2001-10-11 484-354 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2001-10-11 484-515 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALLENTOWN PA
2001-09-27 484-400 not yet reported which blocks → LIMITLESS MOBILE, LLC 6921 READING PA
2001-09-25 484-614 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN29 PA
2001-08-20 484-995 7XXX8XXX which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN28 PA
2001-07-24 484-347 5XXX which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 ALLENTOWN PA
2001-07-24 484-557 not yet reported which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN26 PA
2001-07-03 484-571 0XXX1XXX2XXX3XXX4XXX5XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN23 PA
2001-05-29 484-955 1XXX2XXX3XXX4XXX5XXX8XXX · 2 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 READING PA
2001-05-24 484-357 1XXX2XXX3XXX5XXX8XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 ALLENTOWN PA
2001-05-01 484-645 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN28 PA
2001-04-23 484-576 2XXX4XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN31 PA
2001-04-16 484-643 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 WEST GROVE PA
2001-04-16 484-722 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - PA 547E HONEYBROOK PA
2001-04-12 484-459 5XXX6XXX7XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 W CHESTER PA
2001-04-12 484-574 1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHPHSBZN10 PA
2001-04-11 484-553 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 ALLENTOWN PA
2001-04-04 484-988 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN23 PA
2001-04-03 484-765 none assigned yet which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ALLENTOWN PA
2001-03-29 484-395 8XXX which blocks → PAETEC ITEL, LLC 829J PHPHSBZN28 PA
2001-03-29 484-723 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J W CHESTER PA
2001-03-26 484-597 2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 CATASAUQUA PA
2001-03-20 484-792 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 POTTSTOWN PA
2001-03-14 484-629 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 LEHIGHTON PA
2001-03-14 484-695 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALLENTOWN PA
2001-03-13 484-947 1XXX3XXX4XXX6XXX7XXX8XXX9XXX which blocks → COMCAST IP PHONE, LLC 318J W CHESTER PA
2001-03-12 484-297 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHPHSBZN24 PA
2001-03-12 484-639 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 W CHESTER PA

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.