IP Numbers

Is there a way of finding out the email adress of somebody if I have there
IP number?

Johny wrote:

Is there a way of finding out the email adress of somebody if I have there
IP number?

No. IP addresses have no relation whatsoever to email addresses.

--
Chris Hope - The Electric Toolbox - http://www.electrictoolbox.com/

Johny wrote:

Is there a way of finding out the email adress of somebody if I have
there IP number?

Sometimes yes, sometimes no.

--
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Chris Hope wrote:

Johny wrote:

Is there a way of finding out the email adress of somebody if I have
there IP number?

No. IP addresses have no relation whatsoever to email addresses.

See my reply, which is more correct :-D

--
John -> http://johnbokma.com/ MexIT: http://johnbokma.com/mexit/
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Experienced programmer and SEO available: PR7 http://castleamber.com/
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John Bokma wrote:

Chris Hope wrote:

Johny wrote:

Is there a way of finding out the email adress of somebody if I have
there IP number?

No. IP addresses have no relation whatsoever to email addresses.

See my reply, which is more correct :-D

So tell us how you'd get the email address from an IP address then.

If you're meaning you'd do a whois on an IP address then all that's normally
going to give you is the email address of administrator type addresses. For
example doing a whois on 207.46.245.230 (one of Microsoft's nameservers)
you get a few such as noc at microsoft dot com, abuse at hotmail dot com
and so on.

So are there any other ways to get an email address from an IP address?

--
Chris Hope - The Electric Toolbox - http://www.electrictoolbox.com/

Chris Hope wrote:

John Bokma wrote:

Chris Hope wrote:

Johny wrote:

Is there a way of finding out the email adress of somebody if I
have there IP number?

No. IP addresses have no relation whatsoever to email addresses.

See my reply, which is more correct :-D

So tell us how you'd get the email address from an IP address then.

If you're meaning you'd do a whois on an IP address then all that's
normally going to give you is the email address of administrator type
addresses. For example doing a whois on 207.46.245.230 (one of
Microsoft's nameservers) you get a few such as noc at microsoft dot
com, abuse at hotmail dot com and so on.

So are there any other ways to get an email address from an IP
address?

Some ISPs encode the user in their subdomain, e.g.

10.x.x.x => john.example.invalid => john (AT) example (DOT) invalid

--
John -> http://johnbokma.com/ MexIT: http://johnbokma.com/mexit/
Perl & Google/WWW: http://johnbokma.com/perl/
Experienced programmer and SEO available: PR7 http://castleamber.com/
Happy Customers: http://castleamber.com/testimonials.html

John Bokma wrote:

Chris Hope wrote:

John Bokma wrote:

Chris Hope wrote:

Johny wrote:

Is there a way of finding out the email adress of somebody if I
have there IP number?

No. IP addresses have no relation whatsoever to email addresses.

See my reply, which is more correct :-D

So tell us how you'd get the email address from an IP address then.

If you're meaning you'd do a whois on an IP address then all that's
normally going to give you is the email address of administrator type
addresses. For example doing a whois on 207.46.245.230 (one of
Microsoft's nameservers) you get a few such as noc at microsoft dot
com, abuse at hotmail dot com and so on.

So are there any other ways to get an email address from an IP
address?

Some ISPs encode the user in their subdomain, e.g.

10.x.x.x => john.example.invalid => john (AT) example (DOT) invalid

Ah I see. I've only ever seen domain names encoded into IP address before
and not email addresses.

--
Chris Hope - The Electric Toolbox - http://www.electrictoolbox.com/

"Chris Hope" <blackhole (AT) electrictoolbox (DOT) com> wrote

John Bokma wrote:

Chris Hope wrote:

Johny wrote:

Is there a way of finding out the email adress of somebody if I have
there IP number?

No. IP addresses have no relation whatsoever to email addresses.

See my reply, which is more correct :-D

So tell us how you'd get the email address from an IP address then.

If you're meaning you'd do a whois on an IP address then all that's
normally
going to give you is the email address of administrator type addresses.
For
example doing a whois on 207.46.245.230 (one of Microsoft's nameservers)
you get a few such as noc at microsoft dot com, abuse at hotmail dot com
and so on.

So are there any other ways to get an email address from an IP address?

Social engineering

Chris Hope wrote:

John Bokma wrote:

[...]

Some ISPs encode the user in their subdomain, e.g.

10.x.x.x => john.example.invalid => john (AT) example (DOT) invalid

Ah I see. I've only ever seen domain names encoded into IP address before
and not email addresses.

Technically it's a (sub)domain but since the ISP uses the account name as
subdomain name you can "guess" the email address.

Also, I know people who post a link in a Usenet group, and do educated
guesses about who is who. But that is more social engineering :-D.

--
John -> http://johnbokma.com/ MexIT: http://johnbokma.com/mexit/
Perl & Google/WWW: http://johnbokma.com/perl/
Experienced programmer and SEO available: PR7 http://castleamber.com/
Happy Customers: http://castleamber.com/testimonials.html

Johny wrote:

Is there a way of finding out the email adress of somebody if I have
there IP number?

Hundreds of users, or websites can share a single IP number,
so the general answer is no!

A dialup IP might correspond to any one of thousands of ISP
customers depending on what time they dialled up.

...or it could correspond to any website (of 100s) on a shared server...
--
Mike