ResearchRouting table, RPKI, IRR & looking glass

AS19527 Google LLC

AS19527 (GOOGLE-2) is registered to Google LLC in US, through ARIN. It originates 222 prefixes in the global routing table.

186
IPv4 prefixes
36
IPv6 prefixes
1,824,000
IPv4 addresses
100%
RPKI valid

Who holds AS19527

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS19527
Handle
GOOGLE-2
Organization
Google LLC
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       19527
ASName:         GOOGLE-2
ASHandle:       AS19527
RegDate:        2007-08-17
Updated:        2018-01-10
Comment:        *** The IP addresses under this Org-ID are in use by Google Cloud customers *** 
Comment:              
Comment:           Direct all copyright and legal complaints to 
Comment:           https://support.google.com/legal/go/report
Comment:               
Comment:           Direct all spam and abuse complaints to 
Comment:           https://support.google.com/code/go/gce_abuse_report
Comment:         
Comment:           For fastest response, use the relevant forms above.
Comment:                
Comment:           Complaints can also be sent to the GC Abuse desk 
Comment:           (google-cloud-compliance@google.com) 
Comment:           but may have longer turnaround times.
Comment:               
Comment:           Complaints sent to any other POC will be ignored.
Ref:            https://rdap.arin.net/registry/autnum/19527



OrgName:        Google LLC
OrgId:          GOOGL-2
Address:        1600 Amphitheatre Parkway
City:           Mountain View
StateProv:      CA
PostalCode:     94043
Country:        US
RegDate:        2006-09-29
Updated:        2019-11-01
Comment:        *** The IP addresses under this Org-ID are in use by Google Cloud customers *** 
Comment:        
Comment:        Direct all copyright and legal complaints to 
Comment:        https://support.google.com/legal/go/report
Comment:        
Comment:        Direct all spam and abuse complaints to 
Comment:        https://support.google.com/code/go/gce_abuse_report
Comment:        
Comment:        For fastest response, use the relevant forms above.
Comment:        
Comment:        Complaints can also be sent to the GC Abuse desk 
Comment:        (google-cloud-compliance@google.com) 
Comment:        but may have longer turnaround times.
Comment:        
Comment:        Complaints sent to any other POC will be ignored.
Ref:            https://rdap.arin.net/registry/entity/GOOGL-2


OrgTechHandle: ZG39-ARIN
OrgTechName:   Google LLC
OrgTechPhone:  +1-650-253-0000 
OrgTechEmail:  arin-contact@google.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZG39-ARIN

OrgNOCHandle: GCABU-ARIN
OrgNOCName:   GC Abuse
OrgNOCPhone:  +1-650-253-0000 
OrgNOCEmail:  google-cloud-compliance@google.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/GCABU-ARIN

OrgAbuseHandle: GCABU-ARIN
OrgAbuseName:   GC Abuse
OrgAbusePhone:  +1-650-253-0000 
OrgAbuseEmail:  google-cloud-compliance@google.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/GCABU-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

What AS19527 announces

Prefixes originated by AS19527 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
186
IPv6 prefixes
36
IPv4 addresses
1,824,000 (7,125 /24s)
RPKI valid
222 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS19527
358
With an IRR route object
221 99%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (186)
34.0.0.0/1534.0.16.0/2034.0.32.0/2034.0.64.0/1934.0.96.0/1934.0.160.0/1934.0.192.0/1934.0.227.0/2434.0.231.0/2434.0.234.0/2434.0.236.0/2334.0.238.0/2334.0.240.0/2034.1.32.0/2034.1.48.0/2034.1.64.0/2434.1.67.0/2434.1.76.0/2434.1.77.0/2434.1.79.0/2434.1.80.0/2434.1.82.0/2434.1.83.0/2434.1.85.0/2434.1.86.0/2434.1.87.0/2434.1.88.0/2434.1.89.0/2434.1.90.0/2434.1.91.0/2434.1.94.0/2434.1.95.0/2434.1.96.0/2434.1.99.0/2434.1.101.0/2434.1.103.0/2434.1.104.0/2434.1.105.0/2434.1.107.0/2434.1.108.0/2434.1.112.0/2134.1.120.0/2134.1.128.0/2034.1.144.0/2034.1.176.0/2034.1.192.0/2034.1.208.0/2034.2.0.0/1634.2.0.0/2034.2.16.0/2034.2.48.0/2034.2.72.0/2234.2.85.0/2434.2.90.0/2334.2.92.0/2334.2.94.0/2334.2.114.0/2334.2.116.0/2334.2.128.0/1734.3.16.0/2034.3.24.0/2234.3.32.0/1934.3.32.0/2034.3.64.0/1834.3.64.0/2234.3.68.0/2234.3.72.0/2234.3.96.0/2034.4.16.0/2034.4.24.0/2234.4.32.0/1934.4.64.0/1834.4.64.0/2034.4.104.0/2134.4.128.0/1734.4.128.0/1834.4.208.0/2034.5.0.0/1634.112.0.0/1434.188.0.0/1634.189.0.0/1634.190.0.0/1634.190.8.0/2134.190.16.0/2134.190.24.0/2134.190.32.0/2134.190.40.0/2134.190.48.0/2134.190.56.0/2134.190.64.0/2134.190.72.0/2134.190.80.0/2134.190.88.0/2134.190.96.0/2134.190.104.0/2134.190.128.0/2134.190.160.0/2134.190.168.0/2134.190.184.0/2134.190.192.0/2134.190.200.0/2134.190.208.0/2134.190.216.0/2134.190.224.0/2134.191.0.0/1634.191.48.0/2134.191.104.0/2135.206.0.0/1535.206.2.0/2435.206.3.0/2435.206.4.0/2435.206.8.0/2435.206.192.0/1835.207.192.0/1835.208.0.0/1435.212.0.0/1435.212.128.0/1735.213.0.0/1735.213.128.0/1835.213.192.0/18
Show 66 more
IPv6 (36)

RPKI valid   RPKI invalid   no ROA covers it

Who AS19527 is reached through

The AS just before AS19527 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.