Hawaiian Telcom Services Company
2003-12-22
2025-03-26
About Hawaiian Telcom Services Company
Hawaiian Telcom Services Company operates as the incumbent local exchange carrier (ILEC) in Hawaii, providing local phone, internet, TV, and wireless services primarily to consumers and businesses across the state. It was acquired by Cincinnati Bell in 2018 and rebranded under Altafiber, serving as the dominant telecom provider in Hawaii with fiber optic and IP-based offerings. The company holds OCNs for local number portability and has originated 68 thousand-number blocks.
- Parent: Altafiber (formerly Cincinnati Bell)
- Headquarters: Honolulu, HI
- Services: fiber internet, local phone, business VoIP, digital TV, MVNO wireless
Sources: Hawaiian Telcom - Wikipedia · Hawaiian Telcom: Hawaii High-Speed Fioptics Fiber Internet ... · Business Communications - Hawaii Hosted VoIP & High-Speed ... · Contact Us - Hawaiian Telcom
Toll-free side: Related toll-free RespOrg: Hawaiian Telcom (code HXHXT). View on resporgs.com →
Headquarters: Honolulu, HI


Carrier website
hawaiiantel.com: opens in a new tab
Block portfolio at a glance
By age
- Recent (1). Last 18 mo
- Medium (5)
- Old (46)
- Undated (16)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- Hawaii HI · 68 · 1
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Member OCNs
1 OCN roll up under Hawaiian Telcom Services Company.
| OCN | Company name on file | HQ | Type | Total | Recent |
|---|---|---|---|---|---|
| 009G | Hawaiian Telcom Services Company Inc - HI | Honolulu, HI | Competitive Local Exchange Carrier | 68 | 1 |
