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 412
VERIZON PENNSYLVANIA, INC. 249
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 86
NEW CINGULAR WIRELESS PCS, LLC - IL 60
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 57
AERIAL COMMUNICATIONS, INC. 49
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
2026-07-06 412-750 1XXX which blocks → 8X8, INC. 193E PTTSBGZON1 PA
2026-04-10 412-940 7XXX which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PTTSBGZON1 PA
2026-03-25 412-869 3XXX which blocks → AHOI LLC 883K PTTSBGZON1 PA
2026-01-27 412-938 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON7 PA
2025-12-12 412-898 0XXX1XXX · 2 holders which blocks → WAVENATION, LLC 700J PTTSBGZON1 PA
2025-11-10 412-868 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
2025-09-25 412-846 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
2024-06-08 412-836 0XXX1XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - PA 547E PTGSBNZN14 PA
2024-06-07 412-814 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - PA 547E PTTSBGZON1 PA
2024-05-14 412-619 0XXX1XXX2XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E PTGSBNZN17 PA
2023-12-12 412-570 not yet reported which blocks → SHELCOMM 0051 PTTSBGZON1 PA
2023-12-11 412-556 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E PTTSBGZON1 PA
2023-10-12 412-834 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2023-10-09 412-830 0–9 XXXwhole prefix which blocks → ONVOY, LLC - PA 547E PTTSBGZON6 PA
2023-09-12 412-796 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E PTGSBNZN11 PA
2023-09-12 412-873 0XXX1XXX2XXX3XXX4XXX5XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E PTTSBGZON6 PA
2023-09-12 412-895 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → ONVOY, LLC - PA 547E PTGSBNZN13 PA
2023-08-09 412-484 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
2023-02-17 412-764 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - PA 547E PTTSBGZON4 PA
2023-02-07 412-703 0–9 XXXall 10 · 3 holders which blocks → NUSO, LLC 732J PTGSBNZN10 PA
2023-02-01 412-674 0–9 XXXwhole prefix which blocks → ONVOY, LLC - PA 547E PTGSBNZN12 PA
2023-01-12 412-524 0–9 XXXwhole prefix which blocks → ONVOY, LLC - PA 547E PTTSBGZON7 PA
2023-01-12 412-659 0–9 XXXwhole prefix which blocks → ONVOY, LLC - PA 547E PTGSBNZN22 PA
2023-01-03 412-286 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
2022-11-16 412-876 0XXX1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → METROPCS, INC. 5562 PTGSBNZN18 PA
2022-10-19 412-806 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON1 PA
2022-10-10 412-284 0–9 XXXall 10 · 4 holders which blocks → NUSO, LLC 732J PTTSBGZON8 PA
2022-08-18 412-546 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
2022-07-19 412-239 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2022-06-15 412-870 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 PTGSBNZN15 PA
2022-03-28 412-792 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → METROPCS, INC. 5562 PTTSBGZON7 PA
2022-03-28 412-797 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → METROPCS, INC. 5562 PTGSBNZN12 PA
2022-03-28 412-887 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → METROPCS, INC. 5562 PTGSBNZN10 PA
2022-02-16 412-305 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 PTGSBNZN18 PA
2022-01-20 412-827 0XXX1XXX4XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN21 PA
2021-09-20 412-240 0–9 XXXall 10 · 5 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J PTTSBGZON1 PA
2020-11-03 412-783 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN16 PA
2020-10-27 412-730 0–9 XXXall 10 · 4 holders which blocks → NUSO, LLC 478J PTTSBGZON1 PA
2020-10-26 412-941 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - PA 547E PTTSBGZON4 PA
2020-10-12 412-763 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN10 PA
2020-10-08 412-332 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - PA 547E PTGSBNZN20 PA
2020-09-17 412-813 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ELIZABETH PA
2020-09-16 412-769 0–9 XXXall 10 · 3 holders which blocks → IP HORIZON LLC 515J PTTSBGZON2 PA
2020-09-03 412-947 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON6 PA
2020-09-01 412-746 0–9 XXXall 10 · 4 holders which blocks → FINGER LAKES TECHNOLOGIES GROUP, INC. - PA 464H PTTSBGZON1 PA
2020-07-28 412-679 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON7 PA
2020-07-02 412-981 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - PA 547E PTGSBNZN17 PA
2020-07-02 412-991 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E PTGSBNZN12 PA
2020-05-13 412-790 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - PA 547E PTGSBNZN11 PA
2020-05-13 412-866 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E PTTSBGZON5 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.