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APEWS: ASN / CIDR

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dkri...@bcfs.net

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Aug 1, 2007, 8:15:38 PM8/1/07
to
Humor why a CIDR of 76.208.0.0/13 would be blocked if there was no
CIDR associated with it. hav a lookup up in ARIN for 76.209.202.101...
You'll see that AT&T owns 76.192.0.0 - 76.255.255.255, and I own
76.209.202.1 - 76.209.202.127. Who brained up the idea to block a
range of static IP's from AT&T?

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unread,
Aug 1, 2007, 11:23:20 PM8/1/07
to
dkri...@bcfs.net wrote:
> Humor why a CIDR of 76.208.0.0/13 would be blocked
> if there was no CIDR associated with it. hav a
> lookup up in ARIN for 76.209.202.101... You'll see that
> AT&T owns 76.192.0.0 - 76.255.255.255, and I own
> 76.209.202.1 - 76.209.202.127. Who brained up the idea
> to block a range of static IP's from AT&T?

That you may be SWIPed 76.209.202.0/25
does not make you the owner,
in this case a renter (Baptist Child and Family Services)
that asks others (IP whois) to contact the owner (AT&T)
with any complaints.

ASHandle: AS7132
CIDR: 76.192.0.0/10
NetRange: 76.192.0.0 - 76.255.255.255
NetType: Direct Allocation
OrgName: AT&T Internet Services

CIDR: 76.209.202.0/25
NetRange: 76.209.202.0 - 76.209.202.127
NetType: Reassigned
CustName: Baptist Child and Family Services IAF 1149236.6376

RAbuseEmail: ab...@sbcglobal.net
RNOCEmail: sup...@swbell.net
RTechEmail: ipa...@att.com
OrgAbuseEmail: ab...@sbcglobal.net
OrgNOCEmail: sup...@swbell.net
OrgTechEmail: ipa...@att.com

Since you aren't a IP or AS whois listed contact,
reports of abuse won't be sent to you, they would
be sent to AT&T who may not do anything about it,
likely not even notifying you.


Nothing very surprising about someone listing or blocking
AT&T netspace.

<http://www.spamhaus.org/statistics/networks.lasso>
The 10 Worst Spam Service ISPs As at 01 August 2007
Rank Network Number of Current Known Spam Issues
1 verizon.com 49
2 xo.com 40
3 gwbn.net.cn 35
4 att.net 34
<http://www.spamhaus.org/sbl/listings.lasso?isp=att.net>
Found 34 SBL listings for IPs under the responsibility
of att.net
21 Listings in yellow are known spam gangs with ROKSO
records <http://www.spamhaus.org/rokso/index.lasso>
(Known professional spam operations)

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Andrzej Adam Filip

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Aug 2, 2007, 8:11:25 AM8/2/07
to
dkri...@bcfs.net writes:

> Humor why a CIDR of 76.208.0.0/13 would be blocked if there was no
> CIDR associated with it. hav a lookup up in ARIN for 76.209.202.101...
> You'll see that AT&T owns 76.192.0.0 - 76.255.255.255, and I own
> 76.209.202.1 - 76.209.202.127. Who brained up the idea to block a
> range of static IP's from AT&T?

It may surprise you but routing info is considered more reliable than
WHOIS info. Use your own brain and take a look at routing data (BGP).

#v+
$ whois -h riswhois.ripe.net 76.208.0.0
% This is RIPE NCC's Routing Information Service
% whois gateway to collected BGP Routing Tables
% IPv4 or IPv6 address to origin prefix match
%
% For more information visit http://www.ripe.net/ris/riswhois.html

[...]

route: 76.208.0.0/13
origin: AS7132
descr: SBIS-AS - AT&T Internet Services
[...]
num-rispeers: 95
source: RISWHOIS
#v-

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[pl>en: Andrew] Andrzej Adam Filip : an...@priv.onet.pl : an...@xl.wp.pl
http://anfi.homeunix.org/spamcop-top200/2007/2007-08-01.html
http://anfi.homeunix.org/spamcop-top200/last/latest.html

Shmuel (Seymour J.) Metz

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Aug 2, 2007, 9:24:18 AM8/2/07
to
In <1185995618.8...@m37g2000prh.googlegroups.com>, on
08/02/2007

at 12:15 AM, dkri...@bcfs.net said:

>Humor why a CIDR of 76.208.0.0/13 would be blocked if there was no
>CIDR associated with it.

What were you trying to ask?

> hav a lookup up in ARIN for 76.209.202.101...
>You'll see that AT&T owns 76.192.0.0 - 76.255.255.255, and I own
>76.209.202.1 - 76.209.202.127.

No. In fact, the second statement contradicts the first. AT&T owns
76.192/16, but you only lease 76.209.202/25.

>Who brained up the idea to block a range of static IP's from AT&T?

His name is legion. Some are blocking much wider swathes than that,
and quite properly.

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<http://patriot.net/~shmuel>

I reserve the right to publicly post or ridicule any abusive
E-mail. Reply to domain Patriot dot net user shmuel+news to contact
me. Do not reply to spam...@library.lspace.org

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