07521903591
Mobile (United Kingdom)
07521903591 is a Mobile phone number assigned to the O2 service provider. This may be one of the rare calls, like an incorrectly dialed number, a call from someone you know or from a company about a service or product you ordered. Leave your report if you still notice anything strange.
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Alternative number formats
The phone number can be identified in different formats such as national, E164 - international standard, RFC3966 - URI standard for telephone numbers.
Searched in the last 24 hours
Most frequently searched (07521) phone numbers in the past 24 hours.
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Recent reports:
Called me then hung up, no speech
potatoes with extra potatoes
call indicating from santander fraud team
I got this call from the uk , form an unknown number, I live in Eastern Europe and have zero connections with the region or people.
Be weary No one answers on this number
I also received an airmail letter dated 27/11/2024 (from UK to USA) saying they are prepared to appoint me as the beneficiary of $43 million USD. Of c...
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Tunley Financial Limited - Free mortgage brokers
Scam attempt - block and report
Called me I don't know who is it ???
What is national telephone number format?
A national telephone number is a single telephone number that allows the routing of calls to different
locations within one country. In most cases, a national telephone number consists of 10 digits: a
three-digit area code, and a seven-digit subscriber number.
"0" before number is the
long distance dialling code within the UK.
What is E164 telephone number format?
When calling a country outside of the United Kingdom, you have to call that country's international
access code in order to place an international call.
"+44" is the country calling code assigned to the United Kingdom by the
International Telecommunication Union(ITU) E164 standard. Normally known as the international telephone number format.
What is RFC3966 telephone number format?
RFC3966 is a telephone number URI (Uniform Resource Identifier) standard for
describing resources identified by telephone numbers.
According to RFC3966 document, resources
identified by telephone numbers uses "tel" URI scheme.
E.g. tel:+44-xxx-xxx-xxxx.
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