Telnet Worldwide
2001-01-10
2026-03-25
About Telnet Worldwide
TelNet Worldwide is a Michigan-based telecommunications provider offering VoIP, SIP trunking, cloud PBX, unified communications, data center colocation, and contact center services primarily to businesses. It serves enterprise customers including the Merit Network and has achieved STIR/SHAKEN certification for call authentication. The company operates as a competitive carrier with OCNs in at least two states and manages 463 thousand-number blocks.
- Headquarters: Madison Heights, MI
- Services: SIP Trunking, Cloud PBX, VoIP, Data Center Colocation, Contact Center, Unified Communications
Sources: TelNet Worldwide: Communication Solutions for Your Business · TelNet Worldwide of Michigan awarded stringent spoof-proof phone certification · TelNet Worldwide - Overview, News & Similar companies - ZoomInfo
Toll-free side: Related toll-free RespOrg: TelNet Worldwide (code PXP01). View on resporgs.com →
Headquarters: Madison Heights, MI
From Interactive Services Network Inc (OCN 817J), the largest member of the Telnet Worldwide group.
Carrier website
telnetww.com: opens in a new tab
Block portfolio at a glance
By age
- Recent (1). Last 18 mo
- Medium (0)
- Old (333)
- Undated (129)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- Michigan MI · 463 · 1
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Member OCNs
2 OCNs roll up under Telnet Worldwide.
| OCN | Company name on file | HQ | Type | Total | Recent |
|---|---|---|---|---|---|
| 817J | Interactive Services Network Inc | Madison Heights, MI | IP-Enabled Service / VoIP | 424 | 1 |
| 4632 | Interactive Services Network Inc | Troy, MI | Competitive Local Exchange Carrier | 39 | · |