Check and locate phone number in OSINT

Igor S. Bederov
3 min readMay 6, 2022

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The first thing to do to identify a phone number is to establish its belonging to the region and telecom operator, and also to check its activity. This is done with an HLR request. Such a request in test mode can be made on the service https://smsc.ru/testhlr/. Without checking the activity, the ownership of the phone can be checked at the link https://htmlweb.ru/geo/telcod.php.

Next, you should talk about mobile applications that are installed on smartphones and allow you to identify callers. There are a lot of them, so I will mention the most common:
GetContact: https://getcontact.com/
Sync: https://sync.me/
Numbuster: https://numbuster.com/
Truecaller: https://www.truecaller.com/
Whocalls: https://www.kaspersky.com/caller-id
Yandex: https://yandex.ru/promo/alice/callerid

Using Google Dorks to Verify a Phone Number. One of the easiest ways to check is to use the Google phonebook located at the link: “https://www.google.com/search?hl=en&pb=r&btnG=Search+PhoneBook&q=+123456789". Other search options can be external services: https://demo.phoneinfoga.crvx.fr/#/ and https://intelx.io/tools?tab=telephone.

A serious source of reliable information about the owners of telephone numbers in Russia are mobile applications or web services of Sberbank https://online.sberbank.ru/ and Tinkoff https://www.tinkoff.ru/. They allow you to get part of the username of a credit card in many banks from a mobile phone number. The amount of data they have collected is simply enormous.

Checking registration by phone number in popular messengers allows you to get some of the user’s data, such as a photo, name or nickname. You can check the existence of an account by clicking on the links that include the verified phone number:
Telegram: https://t.me/+123456789
WhatsApp: http://wa.me/123456789
Viber: http://viber.click/123456789

The presence of linking a phone number to social networks and online services can be found out through access recovery systems. I will not list everything in a row, because. there are a lot of them:
Facebook: https://ru-ru.facebook.com/login/identify/
Twitter: https://twitter.com/account/begin_password_reset
Instagram: https://www.instagram.com/accounts/password/reset/
LinkedIn: https://www.linkedin.com/uas/request-password-reset
Google: https://accounts.google.com/signin/v2/identifier
MicroSoft: https://login.live.com/login.srf and so on.

Search for business entities on the map by phone number can be done through the service https://yandex.ru/maps/. Find registered Russian companies by phone number — follow the link https://e-ecolog.ru/phone/+123456789.

Several popular Telegram bots designed to check phone numbers against various leaks: https://avclick.me/v/AVinfoBot, https://gb.sbs/, https://t.me/QuickOSINT_Robot, https:// t.me/UniversalSearchBot.

Now about the geolocation of mobile phones. Since April 2018, mobile phone location detection via IMSI has become impossible. Today, a conditionally legal method of obtaining a location by phone number is geology. Software for such geology is publicly available:
Trape: https://github.com/boxug/trape.git
TrackUrl: https://github.com/Mauladen/TrackUrl
Seeker: https://github.com/thewhiteh4t/seeker.git
IPlogger: https://iplogger.ru/location-tracker/

Another method of obtaining the location of a mobile phone is ADINT, which involves a long process from finding an advertising identifier associated with a phone number and launching geo-targeted advertising on it. You can do this on the sites:
https://audience.yandex.ru/
https://ads.google.com/
https://target.my.com/ or many others.

There are also complex information and analytical solutions that allow you to collect data by phone number. These include such Western services as: Infotracer: https://infotracer.com/; Pipl: https://pipl.com/. Or Russian developments, for example, TelPoisk: https://интернет-розыск.рф/telpoisk — the creator of which is me.

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