NumberResearchRecent prefix assignments
337 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/25/2026
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 |
|---|---|---|---|---|---|---|
| — | 701-725 | not yet reported which blocks → | SRT COMMUNICATIONS, INC. | 3303 | DES LACS | ND |
| — | 701-726 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | MAKOTI | ND |
| — | 701-727 | not yet reported which blocks → | SRT COMMUNICATIONS, INC. | 3303 | MINOT AFB | ND |
| — | 701-728 | not yet reported which blocks → | SRT COMMUNICATIONS, INC. | 3303 | DEERING | ND |
| — | 701-729 | not yet reported which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | FARGO | ND |
| — | 701-730 | 7XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FARGO | ND |
| — | 701-732 | 0XXX1XXX2XXX3XXX8XXX9XXX · 3 holders which blocks → | QWEST CORPORATION | 9631 | GRANDFORKS | ND |
| — | 701-733 | not yet reported which blocks → | INTER-COMMUNITY TELEPHONE COMPANY, LLC | 1616 | DAZEY | ND |
| — | 701-734 | not yet reported which blocks → | BEK COMMUNICATIONS COOPERATIVE | 1604 | WILTON | ND |
| — | 701-736 | not yet reported which blocks → | RC TECHNOLOGIES | 1674 | NO VEBLEN | ND |
| — | 701-738 | 1XXX3XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2564 | GRANDFORKS | ND |
| — | 701-739 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDFORKS | ND |
| — | 701-740 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDFORKS | ND |
| — | 701-741 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDFORKS | ND |
| — | 701-742 | not yet reported which blocks → | DICKEY RURAL TEL. COOP. | 1611 | OAKES | ND |
| — | 701-743 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | ROSEGLEN | ND |
| — | 701-744 | not yet reported which blocks → | QWEST CORPORATION | 9636 | E FAIRVIEW | ND |
| — | 701-745 | not yet reported which blocks → | WEST RIVER TELECOMMUNICATIONS COOP. - ND | 4413 | STANTON | ND |
| — | 701-746 | not yet reported which blocks → | QWEST CORPORATION | 9631 | GRANDFORKS | ND |
| — | 701-747 | 0XXX9XXX · 2 holders which blocks → | QWEST CORPORATION | 9631 | EMERADO | ND |
| — | 701-748 | not yet reported which blocks → | WEST RIVER TELECOMMUNICATIONS COOP. - ND | 4413 | HAZEN | ND |
| — | 701-749 | not yet reported which blocks → | INTER-COMMUNITY TELEPHONE COMPANY, LLC | 1616 | TOWER CITY | ND |
| — | 701-752 | not yet reported which blocks → | DAKOTA CENTRAL TELECOMMUNICATIONS COOP. | 1610 | WOODWORTH | ND |
| — | 701-753 | not yet reported which blocks → | DICKEY RURAL TEL. COOP. | 1611 | CRETE | ND |
| — | 701-754 | not yet reported which blocks → | BEK COMMUNICATIONS COOPERATIVE | 1604 | NAPOLEON | ND |
| — | 701-755 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | ROSS | ND |
| — | 701-756 | not yet reported which blocks → | SRT COMMUNICATIONS, INC. | 3303 | MOHALL | ND |
| — | 701-758 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | RYDER | ND |
| — | 701-759 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | MANDAREE | ND |
| — | 701-762 | not yet reported which blocks → | DICKEY RURAL TEL. COOP. | 1611 | LITCHVILLE | ND |
| — | 701-763 | not yet reported which blocks → | DAKOTA CENTRAL TELECOMMUNICATIONS COOP. | 1610 | WINDSOR | ND |
| — | 701-764 | not yet reported which blocks → | CONSOLIDATED TELCOM | 1607 | KILLDEER | ND |
| — | 701-765 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA - ND - LLC | 772G | GRANDFORKS | ND |
| — | 701-766 | not yet reported which blocks → | NORTH DAKOTA TELEPHONE CO. | 1447 | FORTTOTTEN | ND |
| — | 701-768 | not yet reported which blocks → | SRT COMMUNICATIONS, INC. | 3303 | UPHAM | ND |
| — | 701-769 | not yet reported which blocks → | INTER-COMMUNITY TELEPHONE COMPANY, LLC | 1616 | HANNAFORD | ND |
| — | 701-770 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WILLISTON | ND |
| — | 701-771 | 9XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND | 6568 | RUGBY | ND |
| — | 701-772 | not yet reported which blocks → | QWEST CORPORATION | 9631 | GRANDFORKS | ND |
| — | 701-774 | not yet reported which blocks → | NCC ENTERPRISES | 587A | WILLISTON | ND |
| — | 701-775 | not yet reported which blocks → | QWEST CORPORATION | 9631 | GRANDFORKS | ND |
| — | 701-776 | not yet reported which blocks → | NORTH DAKOTA TELEPHONE CO. | 1447 | RUGBY | ND |
| — | 701-777 | not yet reported which blocks → | QWEST CORPORATION | 9631 | GRANDFORKS | ND |
| — | 701-778 | not yet reported which blocks → | DICKEY RURAL TEL. COOP. | 1611 | DICKEY | ND |
| — | 701-780 | not yet reported which blocks → | QWEST CORPORATION | 9631 | GRANDFORKS | ND |
| — | 701-781 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FARGO | ND |
| — | 701-782 | not yet reported which blocks → | BEK COMMUNICATIONS COOPERATIVE | 1604 | HAZELTON | ND |
| — | 701-783 | not yet reported which blocks → | DICKEY RURAL TEL. COOP. | 1611 | GUELPH | ND |
| — | 701-784 | not yet reported which blocks → | SRT COMMUNICATIONS, INC. | 3303 | LANSFORD | ND |
| — | 701-785 | not yet reported which blocks → | GRIGGS COUNTY TEL. CO. | 1615 | MCHENRY | ND |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.