AS Name Org Name IPv4Prefixes IPv6Prefixes IPv4 NUMs IPv6 NUMs(/64) Registry Region Looking Glass
NBCUNI NBCUniversal 7 2 8,448 131,072 United States
8,448 IPv4 Addresses
CIDR Description IP Num
50.228.144.0/20 Comcast Cable Communications, LLC 4096
173.213.208.0/22 NBCUniversal 1024
173.213.212.0/24 NBCUniversal 256
173.213.213.0/24 NBCUniversal 256
173.213.214.0/23 NBCUniversal 512
173.213.216.0/21 NBCUniversal 2048
204.237.131.0/24 NBCUniversal (C07240039) 256
CIDR Description IP NUMs(prefix /64)
2001:668:121::/48 NBCUNIVERSAL-GTT6 65536
2001:668:122::/48 NBCUNIVERSAL-GTT6 65536
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS33287 COMCAST-33287, US United States 1,736,192 131,072 IPv4 IPv4 IPv6 IPv6
AS33659 CMCS, US United States 2,173,952 0 IPv4 IPv4
AS3257 GTT-BACKBONE - GTT Communications Inc., DE Germany 2,207,004 223,339,020,288 IPv4 IPv4 IPv6 IPv6
AS7922 COMCAST-7922, US United States 71,163,392 36,318,243,520,512 IPv4 IPv4
IP Address Domain NUMs Domains
50.228.145.37 2 signup.universalstudios.com
50.228.145.38 2 github-web.inbcu.com
50.228.145.56 3 nbcaccess-ltm.nbcuni.com
50.228.145.57 4 changemyssopassword.inbcu.com
ASNumber:       54040
ASName:         NBCUNI
ASHandle:       AS54040
RegDate:        2011-09-14
Updated:        2014-06-09    
Ref:            https://rdap.arin.net/registry/autnum/54040


OrgName:        NBCUniversal
OrgId:          NBCUN-5
Address:        30 ROCKEFELLER CENTER
City:           NEW YORK
StateProv:      NY
PostalCode:     10112
Country:        US
RegDate:        2006-12-11
Updated:        2019-11-06
Ref:            https://rdap.arin.net/registry/entity/NBCUN-5


OrgTechHandle: NBCUT-ARIN
OrgTechName:   NBCU Technical
OrgTechPhone:  +1-818-777-9176 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/NBCUT-ARIN

OrgAbuseHandle: INFOS6-ARIN
OrgAbuseName:   InfoSec
OrgAbusePhone:  +1-212-664-4444 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/INFOS6-ARIN