NumberResearchRecent prefix assignments
349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026
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
New assignments by month
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 715-727 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | ONVOY, LLC - WI | 225C | EAU CLAIRE | WI |
| — | 715-732 | not yet reported which blocks → | BRIGHTSPEED OF NORTH CENTRAL WISCONSIN, LLC | 0924 | MARINETTE | WI |
| — | 715-735 | not yet reported which blocks → | BRIGHTSPEED OF NORTH CENTRAL WISCONSIN, LLC | 0924 | MARINETTE | WI |
| — | 715-736 | not yet reported which blocks → | CTC TELCOM, INC. | 7998 | RICE LAKE | WI |
| — | 715-738 | 4XXX8XXX9XXX · 3 holders which blocks → | WISCONSIN BELL INC | 9327 | CHIPPEWFLS | WI |
| — | 715-739 | none assigned yet which blocks → | CHEQUAMEGON COMMUNICATIONS COOPERATIVE, INC. | 0860 | DRUMMOND | WI |
| — | 715-742 | none assigned yet which blocks → | CHEQUAMEGON COMMUNICATIONS COOPERATIVE, INC. | 0860 | CORNUCOPIA | WI |
| — | 715-743 | not yet reported which blocks → | BADGER TELECOM, INC. | 0844 | NEILLSVL | WI |
| — | 715-744 | 5XXX7XXX8XXX · 2 holders which blocks → | PRICE COUNTY INFORMATION SYSTEMS, INC. - WI | 3706 | PARK FALLS | WI |
| — | 715-745 | 0XXX3XXX5XXX7XXX · 4 holders which blocks → | FRONTIER COMMUNICATIONS OF WISCONSIN LLC | 0964 | CECIL | WI |
| — | 715-746 | none assigned yet which blocks → | CHEQUAMEGON COMMUNICATIONS COOPERATIVE, INC. | 0860 | BENOIT | WI |
| — | 715-747 | none assigned yet which blocks → | CHEQUAMEGON COMMUNICATIONS COOPERATIVE, INC. | 0860 | LA POINTE | WI |
| — | 715-748 | not yet reported which blocks → | MIDWAY TEL. CO. | 0909 | MEDFORD | WI |
| — | 715-749 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | WISCONSIN BELL INC | 9327 | ROBERTS | WI |
| — | 715-750 | 0XXX1XXX2XXX3XXX5XXX7XXX8XXX · 4 holders which blocks → | ONVOY, LLC - WI | 225C | ANTIGO | WI |
| — | 715-751 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WISCOSNRPD | WI |
| — | 715-752 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | FRONTIER COMMUNICATIONS OF WISCONSIN LLC | 0964 | BEAR CREEK | WI |
| — | 715-754 | 3XXX8XXX which blocks → | FRONTIER COMMUNICATIONS OF WISCONSIN LLC | 0964 | MARION | WI |
| — | 715-755 | 5XXX8XXX · 2 holders which blocks → | BRIGHTSPEED OF NORTHWEST WISCONSIN, LLC | 0950 | DRESSER | WI |
| — | 715-756 | 3XXX5XXX · 2 holders which blocks → | FRONTIER COMMUNICATIONS OF WISCONSIN LLC | 0964 | NEOPIT | WI |
| — | 715-757 | 0XXX1XXX5XXX7XXX · 4 holders which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0841 | TWINBRIDGE | WI |
| — | 715-758 | 9XXX which blocks → | BONDUEL TEL. CO. | 0851 | BONDUEL | WI |
| — | 715-759 | 1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0841 | AMBERG | WI |
| — | 715-760 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | ROBERTS | WI |
| — | 715-761 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RICE LAKE | WI |
| — | 715-762 | none assigned yet which blocks → | TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK | 1155 | PARK FALLS | WI |
| — | 715-763 | none assigned yet which blocks → | CHEQUAMEGON COMMUNICATIONS COOPERATIVE, INC. | 0860 | GRANDVIEW | WI |
| — | 715-764 | 0XXX1XXX4XXX6XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHETEK | WI |
| — | 715-765 | none assigned yet which blocks → | CHEQUAMEGON COMMUNICATIONS COOPERATIVE, INC. | 0860 | MASON | WI |
| — | 715-766 | 4XXX5XXX6XXX7XXX · 3 holders which blocks → | TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK | 1155 | SPRINGBRK | WI |
| — | 715-767 | 8XXX which blocks → | BRIGHTSPEED OF NORTHERN WISCONSIN, LLC | 0956 | OGEMA | WI |
| — | 715-768 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BALSAMLAKE | WI |
| — | 715-769 | 1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK | 1155 | BUTTERNUT | WI |
| — | 715-770 | 0XXX which blocks → | TERRA NOVA TELECOM INC. | 145J | EAU CLAIRE | WI |
| — | 715-772 | none assigned yet which blocks → | WEST WISCONSIN TELCOM COOP., INC. | 0971 | SPRINGLAKE | WI |
| — | 715-774 | none assigned yet which blocks → | CHEQUAMEGON COMMUNICATIONS COOPERATIVE, INC. | 0860 | PORT WING | WI |
| — | 715-775 | not yet reported which blocks → | NEW CELL DBA CELLCOM | 6692 | MARINETTE | WI |
| — | 715-776 | 1XXX6XXX8XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MERCER | WI |
| — | 715-777 | 0XXX1XXX2XXX7XXX8XXX9XXX · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PELICAN LK | WI |
| — | 715-778 | not yet reported which blocks → | SPRING VALLEY TEL. CO., INC. | 0953 | SPRING VLY | WI |
| — | 715-779 | 1XXX7XXX · 2 holders which blocks → | BRIGHTSPEED OF NORTH CENTRAL WISCONSIN, LLC | 0924 | BAYFIELD | WI |
| — | 715-783 | 1XXX3XXX7XXX8XXX9XXX · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RIB LAKE | WI |
| — | 715-784 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CRANDON | WI |
| — | 715-785 | 5XXX which blocks → | MIDWAY TEL. CO. | 0909 | MEDFORD | WI |
| — | 715-787 | 0XXX2XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | FRONTIER COMMUNICATIONS OF WISCONSIN LLC | 0964 | GRESHAM | WI |
| — | 715-789 | 0XXX4XXX5XXX7XXX · 4 holders which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0841 | HARMONY | WI |
| — | 715-791 | 1XXX4XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WEBB LAKE | WI |
| — | 715-792 | not yet reported which blocks → | HAGER TELECOM, INC. | 0889 | HAGER CITY | WI |
| — | 715-793 | 0XXX1XXX2XXX6XXX7XXX8XXX · 5 holders which blocks → | FRONTIER COMMUNICATIONS OF WISCONSIN LLC | 0964 | BOWLER | WI |
| — | 715-794 | none assigned yet which blocks → | CHEQUAMEGON COMMUNICATIONS COOPERATIVE, INC. | 0860 | NAMEKGONLK | WI |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.