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Which ships and wireless carriers work with Cellular at Sea?
Cellular at Sea operates aboard 210+ cruise ships across 25+ cruise lines, with 400+ carrier roaming partners worldwide.
- 210+Cruise ships
- 25+Cruise lines
- 400+Carrier partners
The fleet footprint
The Cellular at Sea network sails with the world’s major cruise lines: 210+ ships across 25+ brands.
Check for a specific ship, using your specific phone number, here.
The carrier partnerships
400+ mobile carriers around the world maintain roaming agreements with Cellular at Sea. That’s what connects the ship’s network to your bill at home: your carrier and the maritime network settle behind the scenes, exactly as they do when you roam in another country. It’s also why no signup exists for travelers; the partnership already covers you.
Roaming agreements
Your bill at home
No signup
The company behind it
Wireless Maritime Services (WMS), the company behind Cellular at Sea, was created in 2004 and formed in 2005 and is headquartered in Miramar, Florida. WMS has been an independent company since October 2022. Two decades of operating Cellular at Sea has resulted in service on 210+ cruise ships on 25+ cruise lines globally. Maritime cellular is not a side business for Wireless Maritime Services (WMS); it’s our heritage.
- 2004Created
- 2005Formed
- 20+ yearsMaritime cellular
FAQ
Is my cruise ship covered by Cellular at Sea?
The network operates aboard 210+ ships across 25+ cruise lines. You can check for a specific ship here; we keep it updated as new agreements add to our fleet.
Is my carrier supported at sea?
With 400+ carrier roaming partners worldwide, your carrier is likely a partner. Your carrier’s own cruise or international roaming page will confirm its maritime coverage. You can also check here on cellularatsea.com by entering your carrier, your phone number, and your ship.
Does coverage depend on where the ship sails?
The shipboard network travels with the ship. Out at sea, coverage comes from the ship itself rather than from any country you’re passing; near shore, phones use local land networks as on any trip. Your Cellular at Sea service will activate about an hour after you’ve left port, once your ship is in international waters.
How long has Cellular at Sea been operating?
Wireless Maritime Services (WMS) was created in 2004 and formed in 2005, making it a two-decade operator of maritime cellular networks.
For how the connection itself works, see how cell service works on a cruise ship.