222-222-2222 could be the nationwide fallback 911 number (maybe)

[Peteri Szerlagi]

https://www.nomorobo.com/lookup/222-222-2222 - its a debt collector -
this service blocks robocalls after 1 ring

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https://www.agrusslawfirm.com/collection-agencies/delta-outsource-group/222-222-2222/

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https://news.ycombinator.com/item?id=9808203

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GFK_of_xmaspast on June 30, 2015 | parent | context | favorite | on:
Useful Python Libraries for Startups

Why is "222-222-2222" not a valid phone number?


bdarnell on June 30, 2015 [–]

The phone numbers library isn't just counting digits; it has a
database of which area codes exist (as well as other lesser-known
rules, depending on the country). This makes it more effective at
filtering out invalid/fake phone numbers, but it does mean you need to
stay on top of the latest version as its database changes over time.