Reverse Lookups with Forwarders

Jason Hellenthal jhellenthal at
Tue Jul 9 06:38:33 UTC 2013

Only thing I see to be missing here is actual Class B address space 172.16/12 but instead you are trying to forward from Class A public address space assigned to FACEBOOK. I don't quite think you will get that to work... That is unless you are the Facebook authoritative server...

 range: >                                     range b10:   2885681152 > 2886729727  range b16:   0xac000000 > 0xac0fffff  hosts:       1048576                  prefixlen:   12                       mask:

Was this just an intentional obfuscation ?

# ARIN WHOIS data and services are subject to the Terms of Use
# available at:

# The following results may also be obtained via:

NetRange: -
OriginAS:      AS32934
NetName:        FACEBOOK-INC
NetHandle:      NET-173-252-64-0-1
Parent:        NET-173-0-0-0-0
NetType:        Direct Assignment
RegDate:        2011-02-28
Updated:        2012-02-24

OrgName:        Facebook, Inc.
OrgId:          THEFA-3
Address:        1601 Willow Rd.
City:          Menlo Park
StateProv:      CA
PostalCode:    94025
Country:        US
RegDate:        2004-08-11
Updated:        2012-04-17

OrgTechHandle: OPERA82-ARIN
OrgTechName:  Operations
OrgTechPhone:  +1-650-543-4800 
OrgTechEmail:  noc at

OrgAbuseHandle: OPERA82-ARIN
OrgAbuseName:  Operations
OrgAbusePhone:  +1-650-543-4800 
OrgAbuseEmail:  noc at

# ARIN WHOIS data and services are subject to the Terms of Use
# available at:

 Jason Hellenthal
 Inbox: jhellenthal at
 Voice: +1 (616) 953-0176

On Jul 9, 2013, at 2:21, sumsum 2000 <sum2hike at> wrote:

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