Long shot, but worth calling.

SEI Data Inc - IN issued these blocks a while back. Most of the numbers are probably already with customers, but it's worth calling any you're interested in. If a number isn't in service, it might still be available at SEI Data Inc - IN or one of their resellers.

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About SEI Rural Telephone Cooperative

SEI Communications, operating as a member-owned telephone cooperative since 1953, provides local exchange telephone service as an ILEC in portions of Dearborn, Jefferson, Jennings, Ohio, Ripley, and Switzerland counties in southeastern Indiana. It serves rural residential and small business customers with voice, DSL, fiber (up to 1 Gbps), and fixed wireless internet, supplemented by CLEC operations elsewhere in Indiana. As a small rural telco, it partners with Southeastern Indiana REMC on the SEI Fiber network for broadband expansion.

Sources: SEI Communications, Inc · About Us | SEI Communications, Inc · Sei Communications - Overview, News & Similar companies

Toll-free side: SEI Rural Telephone Cooperative also operates as a toll-free RespOrg (code CJI01). View on resporgs.com →

Carrier website

Homepage screenshot of SEI Data Inc - IN seicommunications.com: opens in a new tab

HQ: Dillsboro, IN

Satellite view of SEI Data Inc - IN HQ
Satellite

Block portfolio at a glance

Block assignments by year

6 18

Area codes

NPABlocksRecentLast
812 7 · 2018-02-23

States

StateBlocksRecent
IN 7 ·

Sister OCNs in the Southeastern Indiana Rural Telephone Cooperative Inc group

Same customer-facing carrier, different state-registered OCN. Combined stats are on the Southeastern Indiana Rural Telephone Cooperative Inc group page.

OCNCompany name on fileHQ stateTotalRecent
0819 Southeastern Indiana Rural Telephone Cooperative Inc IN 31 ·

Sister OCNs under SEI Rural Telephone Cooperative Inc

OCNCompanyTotalRecent
0819 Southeastern Indiana Rural Telephone Cooperative Inc 31 0