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A comment on Show HN: Safe-now.live – Ultra-light emergency info site (<10KB).

Re:Show HN: Safe-now.live – Ultra-light emergency info site ... by davedx on Tuesday February 03, 2026 @11:06AM (#46872778)
The UK emergency phone number is 999, not 112.

Ugh. Don't make a website like this without verifying the information is correct please!

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Re:Show HN: Safe-now.live – Ultra-light emergency info site ... by tinuviel on Tuesday February 03, 2026 @11:51AM (#46873486)
https://www.gov.uk/guidance/999-and-112-the-uks-national-eme...

112 is also a national emergency number.

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Re:Show HN: Safe-now.live – Ultra-light emergency info site ... by deceptionatd on Tuesday February 03, 2026 @06:48PM (#46879162)
112 and 911 (US) work on almost every mobile phone anywhere in the world. It's part of the GSM/UMTS standard. 999 is supported with either no SIM card or a UK SIM card. See §7.1 here: https://www.ietf.org/lib/dt/documents/LIAISON/file562.pdf

They also don't require a phone to be activated in most countries. I believe there are some exceptions in EU countries, but in the US it just needs to have a working antenna and be in range of a tower.

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