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+---- Thread: Global Cellphone Number OSINT Guide (/showthread.php?tid=6313613)
Global Cellphone Number OSINT Guide - Clumsy - Nov 13, 2025
Step 1 - Verify and Analyze the Number
Begin by validating the number’s format, country, carrier, line type, and geolocation to sharpen your focus.
1. Number Verification
Tool - Numverify API (free tier)
API - https://api.numverify.com/validate?number=+12345678901&access_key=YOUR_KEY
Returns - Country, carrier, line type (mobile/VoIP/landline), city/region
URL - https://www.numverify.com
Tool - Libphonenumber (Google’s open-source library)
Install - pip install phonenumbers
Script -
import phonenumbers
from phonenumbers import geocoder, carrier
num = phonenumbers.parse("+12345678901")
print(geocoder.description_for_number(num, "en"))
print(carrier.name_for_number(num, "en"))
Returns - Country, region, carrier
URL - https://github.com/daviddrysdale/python-phonenumbers
Manual - Check country code (+1 US, +44 UK, +91 IN) via https://www.countrycallingcodes.com
2. Carrier Identification
Tool - Twilio Lookup API (free trial)
Script -
from twilio.rest import Client
client = Client("account_sid", "auth_token")
phone = client.lookups.v2.phone_numbers("+12345678901").fetch(fields="carrier,line_type_intelligence")
print(phone.carrier, phone.line_type_intelligence)
Returns - Carrier, line type, porting status
URL - https://www.twilio.com
Free Tools -
FreeCarrierLookup (US/Canada) - https://www.freecarrierlookup.com
MyCarrierLookup (global) - https://www.mycarrierlookup.com
Returns - Carrier, SMS gateway, region
3. Burner and VoIP Detection
Tool - NumSpy (disposable number database)
Search - First 6-7 digits to flag VoIP (Google Voice, TextNow, Burner)
URL - https://numspy.io
Tool - Hiya API
Checks - Fraud risk, VoIP status, reputation score
URL - https://www.hiya.com
Manual - Cross-check prefixes with VoIP lists at https://www.voip-info.org
4. Geolocation
Tool - Melissa Global Phone Check
Returns - City, state, country, coordinates
URL - https://lookups.melissa.com
Tool - OpenCelliD (cell tower lookup)
API - https://opencellid.org/#api
Returns - Approximate location via MCC/MNC
URL - https://www.opencellid.org
Manual - Area code lookup for US/CA (e.g., 212 = NYC) via https://www.allareacodes.com
Step 2 - Carrier Contact Search
Contacting carriers directly can yield owner info with proper authorization (e.g., legal request). Below are 2025 carrier contacts for US, Canada, Australia, UK, and select global regions.
United States - Carrier Contacts
AT&T - 800-331-0500 - [email protected]
Verizon Wireless - 800-922-0204 - [email protected]
T-Mobile - 800-866-2453 - [email protected]
Sprint (T-Mobile) - 800-866-2453 - [email protected]
CenturyLink - 800-876-5753 - [email protected]
Frontier Communications - 888-227-8498 - [email protected]
Cox Communications - 800-234-3993 - [email protected]
Comcast (Xfinity) - 800-934-6489 - [email protected]
Charter Spectrum - 800-944-9473 - [email protected]
Google Voice - 855-466-4448 - [email protected]
Bandwidth.com - 800-808-5150 - [email protected]
MetroPCS (T-Mobile) - 888-863-8768 - [email protected]
Cricket Wireless - 800-274-2538 - [email protected]
Boost Mobile - 888-266-7848 - [email protected]
Straight Talk - 877-430-2355 - [email protected]
Mint Mobile - 800-683-7392 - [email protected]
Visible - 833-246-0038 - [email protected]
US Cellular - 888-944-9400 - [email protected]
Consumer Cellular - 888-750-5519 - [email protected]
TracFone - 800-867-7183 - [email protected]
Republic Wireless - 866-550-9843 - [email protected]
Ting Mobile - 855-846-4389 - [email protected]
Canada - Carrier Contacts
Bell Canada - 800-567-0577 - [email protected]
Rogers Communications - 877-764-3771 - [email protected]
Telus - 866-558-2273 - [email protected]
SaskTel - 800-772-7858 - [email protected]
MTS (Manitoba Telecom) - 888-942-3678 - [email protected]
Eastlink - 800-355-5007 - [email protected]
Vidéotron - 866-855-3775 - [email protected]
Northwestel - 866-562-7713 - [email protected]
TELUS Mobility - 866-558-2273 - [email protected]
Bell Mobility - 800-567-0577 - [email protected]
Freedom Mobile - 877-946-3184 - [email protected]
Fido (Rogers) - 888-481-3436 - [email protected]
Koodo Mobile - 866-995-6636 - [email protected]
Virgin Plus - 888-999-2321 - [email protected]
Chatr Mobile - 800-485-9741 - [email protected]
Public Mobile - 855-478-2542 - [email protected]
Australia - Carrier Contacts
Telstra - 13 33 31 (+61 1800-835-331) - [email protected]
Optus - 13 13 66 - [email protected]
Vodafone - 1300 848 848 - [email protected]
Virgin Mobile - 1300 555 400 - [email protected]
TPG - 13 14 60 - [email protected]
Amaysim - 1300 808 300 - [email protected]
ALDI Mobile - 1300 989 000 - [email protected]
Boost Mobile - 1800 100 933 - [email protected]
Lebara Mobile - 1300 126 122 - [email protected]
Kogan Mobile - 1300 056 426 - [email protected]
Southern Phone - 1300 762 831 - [email protected]
Coles Mobile - 1300 115 050 - [email protected]
United Kingdom - Carrier Contacts
BT - 150 (Free from landline) - [email protected]
TalkTalk - 0345 172 0088 - [email protected]
O2 - 0800 027 2828 - [email protected]
EE - 07953 966 250 - [email protected]
Vodafone UK - 0333 304 0191 - [email protected]
Sky Mobile - 0333 759 1018 - [email protected]
Three UK - 0333 338 1001 - [email protected]
Virgin Media - 0345 454 1111 - [email protected]
Giffgaff - 0345 601 6090 - [email protected]
Tesco Mobile - 0345 301 4455 - [email protected]
Lebara Mobile - 0207 031 0791 - [email protected]
Lycamobile - 0207 132 0322 - [email protected]
iD Mobile - 0333 003 7777 - [email protected]
Asda Mobile - 0800 079 2732 - [email protected]
Global Carriers (Sample for Other Regions)
India - Airtel - +91 98450 98450 - [email protected]
India - Jio - 1800 889 9999 - [email protected]
Germany - Deutsche Telekom - +49 800 330 1000 - [email protected]
France - Orange - +33 800 05 10 10 - [email protected]
Japan - NTT Docomo - +81 120 800 000 - [email protected]
South Africa - MTN - +27 83 123 4357 - [email protected]
Brazil - Vivo - +55 800 015 1515 - [email protected]
China - China Mobile - +86 10086 - [email protected]
Russia - MTS - +7 800 250 0890 - [email protected]
Step 3 - Online Reverse Lookup Platforms
These services aggregate public records, telecom data, and user reports. Free for basic info, premium for deeper insights.
Truecaller - Global caller ID, 450M+ users, spam flags - Free/Premium - https://www.truecaller.com
NumLookup - US-focused, carrier, name - Free - https://www.numlookup.com
IPQS - CNAM, fraud score, VoIP check, global - Free/Paid - https://www.ipqualityscore.com
Spy Dialer - US, voicemail, social links - Free - https://www.spydialer.com
WhoCallsMe - Community scam reports - Free - https://www.whocallsme.com
Whitepages - US, name/address, premium search - Free/Premium - https://www.whitepages.com
BeenVerified - US, social media, public records - Paid - https://www.beenverified.com
ZLOOKUP - Global mobile lookup - Free - https://www.zlookup.com
ThisNumber - US/international, public data - Free - https://www.thisnumber.com
Spokeo - US, social profiles, 12B+ records - Free/Premium - https://www.spokeo.com
Intelius - US, background checks, criminal records - Paid - https://www.intelius.com
PeopleFinders - US, deep background data - Paid - https://www.peoplefinders.com
KrispCall - Global, VoIP lookup - Free/Paid - https://www.krispcall.com
ReversePhoneCheck - US, detailed reports - Paid - https://www.reversephonecheck.com
FastPeopleSearch - US, public records - Free - https://www.fastpeoplesearch.com
TruthFinder - US, criminal/social data - Paid - https://www.truthfinder.com
Instant Checkmate - US, background checks - Paid - https://www.instantcheckmate.com
OSINT Industries - Real-time, social media links - Paid - https://www.osint.industries
UserSearch.ai - US, social/background - Paid - https://www.usersearch.org
ScamSearch.io - Global scam database - Free - https://www.scamsearch.io
800notes - Crowd-sourced scam reports - Free - https://www.800notes.com
SocialLinks - Premium social OSINT - Paid - https://www.sociallinks.io
Melissa - US, massive people database - Paid - https://www.melissa.com
X-Ray Contact - Multi-channel OSINT - Paid - https://www.x-ray.contact
Lampyre - Advanced OSINT platform - Paid - https://www.lampyre.io
Sync.me - Global caller ID, social sync - Free/Premium - https://sync.me
CallApp - Global, social media integration - Free/Premium - https://www.callapp.com
And if I left any of these out
📞 Comprehensive Reverse Phone Lookup Directory
An exhaustive compilation of reverse phone lookup resources, including carrier-specific contact numbers across the United States, Canada, Australia, and the United Kingdom, as well as a curated list of reputable online reverse lookup services.
🇺🇸 United States – Carrier Reverse Lookup Numbers
| Provider | Reverse Lookup Number |
|---------------------------------|------------------------------|
| AT&T | 800-331-0500 |
| Verizon Wireless | 800-922-0204 |
| T-Mobile | 800-866-2453 |
| Sprint | 800-866-2453 |
| CenturyLink | 800-876-5753 |
| Frontier Communications | 888-227-8498 |
| Cox Communications | 800-234-3993 |
| Comcast (Xfinity) | 800-934-6489 |
| Charter Spectrum | 800-944-9473 |
| MCI | 800-551-4465 |
| EarthLink | 877-374-2495 |
| Level 3 Communications | 303-804-8000 |
| Cogent Communications | 202-618-3300 |
| Global Crossing | 954-797-1700 |
| Interpedia | 800-541-5339 |
🇨🇦 Canada – Carrier Reverse Lookup Numbers
| Provider | Reverse Lookup Number |
|---------------------------------|------------------------------|
| Bell Canada | 800-567-0577 |
| Rogers Communications | 877-764-3771 |
| Telus | 866-558-2273 |
| SaskTel | 800-772-7858 |
| MTS (Manitoba Telecom Services) | 888-942-3678 |
| Eastlink | 800-355-5007 |
| Vidéotron | 866-855-3775 |
| Northwestel | 866-562-7713 |
| TELUS Mobility | 866-558-2273 |
| Bell Mobility | 800-567-0577 |
🇦🇺 Australia – Carrier Reverse Lookup Numbers
| Provider | Reverse Lookup Number |
|----------------|-------------------------------|
| Telstra | 13 33 31 (US: 1800-835-331) |
| Optus | 13 13 66 |
| Vodafone | 1300 848 848 |
| Virgin Mobile | 1300 555 400 |
| TPG | 13 14 60 |
🇬🇧 United Kingdom – Carrier Reverse Lookup Numbers
| Provider | Reverse Lookup Number |
|----------------------|--------------------------|
| BT | 150 (Free from UK landline) |
| TalkTalk | 0345 172 0088 |
| O2 | 0800 027 2828 |
| EE | 07953 966 250 |
| Vodafone UK | 0333 304 0191 |
| Sky Mobile | 0333 759 1018 |
🌐 Online Reverse Phone Lookup Services
| Service | Description | URL |
|----------------|--------------------------------------------------------|-------------------------------------------|
| Truecaller | Global caller ID & spam protection | [truecaller.com](https://www.truecaller.com) |
| NumLookup | Free US-based reverse lookup | [numlookup.com](https://www.numlookup.com) |
| IPQS | Carrier, VOIP, spam score, fraud check | [ipqualityscore.com](https://www.ipqualityscore.com) |
| Spy Dialer | Reverse phone, name, photo, and social lookup (US) | [spydialer.com](https://www.spydialer.com) |
| WhoCallsMe | Community-reported suspicious caller info | [whocallsme.com](https://www.whocallsme.com) |
| AnyWho | US phone directory search | [anywho.com](https://www.anywho.com) |
| 411.com | Reverse phone & address lookup | [411.com](https://www.411.com) |
| Whitepages | Premium lookups with name/address | [whitepages.com](https://www.whitepages.com) |
| BeenVerified | People search with social and phone info | [beenverified.com](https://www.beenverified.com) |
| ZLOOKUP | Instant free mobile lookup worldwide | [zlookup.com](https://www.zlookup.com) |
| FreeCarrierLookup | Carrier lookup with email-to-SMS/MMS gateways (US/Canada) | [freecarrierlookup.com](https://freecarrierlookup.com/) |
| MyCarrierLookup | Free carrier lookup with global coverage | [mycarrierlookup.com](https://mycarrierlookup.com/) |
| Cell Revealer | Free reverse lookup for US/Canada cell numbers | [cellrevealer.com](https://www.cellrevealer.com/) |
| AllAreaCodes | Free reverse lookup with spam complaint tracking | [allareacodes.com](https://www.allareacodes.com/reverse-phone-lookup/) |
| FreePhoneTracer | Reverse lookup powered by NumberGuru | [freephonetracer.com](https://www.freephonetracer.com/) |
| ReversePhone | Reverse lookup with user-submitted data | [reversephone.com](https://www.reversephone.com/) |
| MLocator | Reverse lookup with telecom and public records data | [mobilephonelocator.net](https://www.mobilephonelocator.net/reverse-phone-lookup) |
| SpyTox | Reverse lookup with background check features | [spytox.com](https://www.spytox.com/) |
| That's Them | Fast, free reverse lookup with public records | [thatsthem.com](https://thatsthem.com/) |
| PeekYou | Reverse lookup with social media profile aggregation | [peekyou.com](https://www.peekyou.com/) |
| US Search | Reverse lookup with subscription options | [ussearch.com](https://www.ussearch.com/) |
| Radaris | Reverse lookup with extensive public records | [radaris.com](https://www.radaris.com/) |
| ZoSearch | Reverse lookup with detailed personal information | [zosearch.com](https://www.zosearch.com/) |
| Searqle | Background check service with reverse phone lookup | [searqle.com](https://www.searqle.com/) |
| Intelius | Comprehensive reverse lookup and background checks | [intelius.com](https://www.intelius.com/) |
| PeopleFinders | Reverse lookup with criminal records and social profiles | [peoplefinders
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RE: Global Cellphone Number OSINT Guide - plops - Nov 13, 2025
Well done here, thanks for the resources.
freecarrierlookup is always a solid start.
RE: Global Cellphone Number OSINT Guide - Lowkey - Nov 13, 2025
Very nice thread.