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 570
VERIZON PENNSYLVANIA, INC. 156
COMMONWEALTH TELEPHONE COMPANY LLC 75
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 75
NEW CINGULAR WIRELESS PCS, LLC - DC 68
CORE COMMUNICATIONS, INC. - PA 62
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
2026-01-13 570-680 0XXX which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 THOMPSON PA
2024-03-01 570-845 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → NORTH PENN LONG DISTANCE CORPORATION 091H SCRANTON PA
2023-10-27 570-610 0XXX which blocks → ONVOY SPECTRUM, LLC 624H BENTON PA
2017-03-11 570-442 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 THOMPSON PA
2017-03-09 570-936 0–9 XXXall 10 · 8 holders which blocks → METROPCS, INC. 5562 CARBONDALE PA
2016-09-02 570-405 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E ASHLAND PA
2016-08-15 570-393 0–9 XXXall 10 · 7 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 LANSFORD PA
2016-05-26 570-354 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E SCRANTON PA
2016-03-22 570-979 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILLIAMSPT PA
2016-03-15 570-931 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 WILKSBARRE PA
2016-01-15 570-927 0–9 XXXall 10 · 6 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J LOCK HAVEN PA
2015-11-24 570-984 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 MINERSVL PA
2015-11-06 570-921 0–9 XXXall 10 · 3 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J SCRANTON PA
2015-10-12 570-917 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 SUNBURY PA
2015-10-02 570-890 0–9 XXXall 10 · 5 holders which blocks → NORTH PENN LONG DISTANCE CORPORATION 091H SAYRE PA
2015-09-18 570-535 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 HAZLETON PA
2015-09-08 570-990 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 POTTSVILLE PA
2015-05-29 570-712 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 MEHOOPANY PA
2015-04-29 570-964 0–9 XXXall 10 · 3 holders which blocks → FINGER LAKES TECHNOLOGIES GROUP, INC. - PA 464H SAYRE PA
2015-02-13 570-572 0–9 XXXall 10 · 3 holders which blocks → NORTH PENN LONG DISTANCE CORPORATION 091H DALLAS PA
2014-11-07 570-989 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F MILTON PA
2014-10-27 570-866 0–9 XXXall 10 · 6 holders which blocks → FINGER LAKES TECHNOLOGIES GROUP, INC. - PA 464H SCRANTON PA
2014-10-17 570-202 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 STROUDSBG PA
2014-03-12 570-790 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 HAZLETON PA
2014-03-03 570-844 0XXX1XXX2XXX3XXX4XXX7XXX9XXX · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F BUSHKILL PA
2013-09-30 570-980 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 WILLIAMSPT PA
2013-04-19 570-703 0–9 XXXall 10 · 4 holders which blocks → CTSI, INC. - PA 7513 SCRANTON PA
2013-03-06 570-914 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NUSO, LLC 551G SCRANTON PA
2013-02-06 570-880 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F SCRANTON PA
2012-12-24 570-846 0–9 XXXall 10 · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 WILKSBARRE PA
2012-10-22 570-892 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 SCRANTON PA
2012-10-22 570-904 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 SCRANTON PA
2012-09-05 570-999 3XXX6XXX9XXX · 3 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J FORESTCITY PA
2012-08-08 570-671 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → AT&T - LOCAL 7421 SHENANDOAH PA
2012-07-23 570-810 0–9 XXXall 10 · 8 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TAMAQUA PA
2012-07-05 570-761 0–9 XXXall 10 · 7 holders which blocks → COMMONWEALTH TELEPHONE COMPANY LLC 0161 DALLAS PA
2012-06-22 570-666 0–9 XXXall 10 · 6 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 WILLIAMSPT PA
2012-03-13 570-710 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 HAZLETON PA
2012-02-21 570-728 0–9 XXXall 10 · 4 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 POTTSVILLE PA
2012-02-13 570-536 0–9 XXXall 10 · 5 holders which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 CARBONDALE PA
2011-12-02 570-507 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 SCRANTON PA
2011-11-02 570-665 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TUNKHANNCK PA
2011-09-01 570-550 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F WILKSBARRE PA
2011-09-01 570-664 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F STROUDSBG PA
2011-08-11 570-209 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 SCRANTON PA
2011-07-22 570-415 0–9 XXXall 10 · 7 holders which blocks → CTSI, INC. - PA 7513 SUNBURY PA
2011-07-15 570-334 2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 HUGHESVL PA
2011-07-15 570-551 0–9 XXXall 10 · 8 holders which blocks → WINDSTREAM BUFFALO VALLEY, INC. 0151 LEWISBURG PA
2011-05-16 570-599 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 HAZLETON PA
2011-03-03 570-661 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 WASHIGTNVL PA

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.