Numverify — Global phone number validation and lookup JSON API. 250 API requests/month. - Source: dev.to / over 1 year ago

As the name implies, phone confirmation APIs are used to verify contact information. Phone numbers are checked for validity and continued use by verification APIs and services (i.e., they exist). They can also be used to identify geographic data and standardize phone numbers for regulatory purposes. The phrase phone verification API is extremely broad. - Source: dev.to / over 1 year ago

This technology can be used in combination with other security measures to further protect your privacy and prevent fraudsters from getting through to you. When it comes to privacy and security, there are a few things more important than keeping your phone number safe. That's why reverse phone API can be such a valuable tool. By using this technology, you can keep your number hidden from public view, making it... - Source: dev.to / almost 2 years ago

Phone Numbers are required by businesses for various purposes as some use mobiles to send out greetings on a regular basis, while others use messaging to market products or services, and still others necessitate phone numbers to provide better service. Therefore for the verification of these numbers, phone number verification APIs are best to validate them. The business can avail the benefits such as saving time... Source: almost 2 years ago

Phone confirmation APIs are being used to validate contact information, as the name simplies. Verification APIs and services check phone numbers to make sure they're still in use and legitimate (i.e., they exist). For regulatory concerns, they can also be used to standardize phone numbers and identify geographical data. Phone Verification API is a vast term in itself. - Source: dev.to / about 2 years ago

Ipstack - Locate and identify Website Visitors by IP Address. - Source: dev.to / 4 months ago

Looking to enhance your website or application with location-based services? Look no further! ipstack's Geo Lookup API is the perfect solution for seamless and accurate geolocation data retrieval. With this Free Geo IP API, you can easily obtain vital information about your users or customers, such as their country, city, latitude, longitude, time zone, and more. ipstack's API is renowned for its reliability and... Source: 10 months ago

Not really their fault. I think they mostly use https://ipstack.com/ for IP Geolocation API - their support is not the best when it comes to updating IP info. Source: 11 months ago

I had to contact https://ipstack.com/ / http://co.apilayer.net/ 5 or 6 times until they corrected the database, and Azure Sign-in logs started showing the correct details. Source: over 1 year ago

There's even a free API: https://ipstack.com/ Does seem to be less accurate than the source mylocation.org uses, as ipstack seems to think my ipv6 address is in Mons, while mylocation sees my ipv4 address as Leuven-area (which is correct). Source: over 1 year ago