NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

1 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, last 30 days — NPA 708
ONVOY, LLC 1
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
2026-08-27 708-944 0XXX which blocks → ONVOY, LLC 224C TINLEYPARK IL
2025-10-02 708-230 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC 224C FOREST IL
2025-10-02 708-939 0XXX2XXX9XXX which blocks → ONVOY, LLC 224C MAYWOOD IL
2024-09-10 708-886 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 SUMMIT IL
2024-02-09 708-464 0–9 XXXall 10 · 2 holders which blocks → EON TELECOM, INC. 839J CICERO IL
2024-02-08 708-900 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 RIVERDALE IL
2024-02-08 708-994 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 SUMMIT IL
2024-01-11 708-760 0–9 XXXwhole prefix which blocks → EON TELECOM, INC. 839J CHICAGOHTS IL
2024-01-04 708-706 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H MOKENA IL
2023-11-07 708-604 1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PALOS PARK IL
2023-09-26 708-412 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2023-04-05 708-500 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2022-09-26 708-708 0–9 XXXwhole prefix which blocks → ONVOY, LLC 224C BERWYN IL
2022-09-07 708-348 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E CICERO IL
2022-08-16 708-413 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E CICERO IL
2021-11-01 708-773 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H CHICAGOHTS IL
2021-10-28 708-630 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E BERWYN IL
2021-10-25 708-312 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E BLUEISLAND IL
2021-10-13 708-901 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 LA GRANGE IL
2021-10-13 708-920 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2021-10-05 708-815 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2021-10-05 708-847 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC 224C CRETE IL
2021-08-31 708-796 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2021-08-24 708-664 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2021-08-05 708-470 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLUEISLAND IL
2021-08-05 708-618 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2021-07-07 708-353 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2021-07-01 708-219 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2021-05-17 708-791 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2021-05-04 708-809 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC 224C MONEE IL
2021-03-31 708-723 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2021-01-29 708-739 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2021-01-29 708-742 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC 224C LANSING IL
2021-01-29 708-765 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICAGOHTS IL
2021-01-14 708-696 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 ORLAND IL
2021-01-11 708-659 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC 224C OAK FOR SO IL
2020-10-06 708-736 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E BLUEISLAND IL
2020-09-25 708-621 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2020-09-04 708-726 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → STRATUS NETWORKS 495J PEOTONE IL
2020-09-04 708-729 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → STRATUS NETWORKS 495J PALOS PARK IL
2020-09-04 708-734 0–9 XXXall 10 · 4 holders which blocks → STRATUS NETWORKS 495J SUMMIT IL
2020-06-08 708-766 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H FOREST IL
2019-12-16 708-694 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J MOKENA IL
2019-10-23 708-685 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 LA GRANGE IL
2019-10-10 708-855 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H CHICAGOHTS IL
2019-10-07 708-676 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2019-07-16 708-635 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ORLAND IL
2018-10-04 708-556 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2018-02-23 708-553 0–9 XXXall 10 · 4 holders which blocks → EXIANT COMMUNICATIONS LLC 114J CICERO IL
2017-08-07 708-549 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ORLAND IL

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.