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Interstate Telecommunications Cooperative Inc - SD issued these blocks within the last 18 months, so many of the numbers in them may not have been assigned to customers yet. Call any number you're interested in, and if it doesn't go to a customer you can contact Interstate Telecommunications Cooperative Inc - SD and you might be able to get it from them.

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About Interstate Telecom

Interstate Telecommunications Cooperative is an independent rural ILEC providing telephone, fiber internet, and streaming TV services across 5,500 square miles in northeastern South Dakota and western Minnesota, serving approximately 50,000 people. It primarily serves consumers and small businesses in its cooperative member base with FTTH networks completed in 2020. As a small local exchange carrier, it operates in a niche rural market alongside other South Dakota cooperatives.

Sources: Meet our Members: Interstate Telecommunications Cooperative · SOUTH DAKOTA LOCAL TELEPHONE COMPANIES · Interstate Telecommunications Cooperative · Contact ITC Customer Service

Carrier website

Homepage screenshot of Interstate Telecommunications Cooperative Inc - SD itc-web.com: opens in a new tab

HQ: Clear Lake, SD

Street view of Interstate Telecommunications Cooperative Inc - SD HQ
Street view
Satellite view of Interstate Telecommunications Cooperative Inc - SD HQ
Satellite

Block portfolio at a glance

Area codes

NPABlocksRecentLast
605 27 · ·
507 2 · ·

States

StateBlocksRecent
SD 27 ·
MN 2 ·

Sister OCNs in the Interstate Telecom group

Same customer-facing carrier, different state-registered OCN. Combined stats are on the Interstate Telecom group page.

OCNCompany name on fileHQ stateTotalRecent
1654 Interstate Telecommunications Cooperative Inc - MN SD 3 ·