AS19231 NBCUniversal

• IPv4 Prefixes

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	50.203.232.0/24	Comcast Cable Communications, LLC		50.128.0.0/9	ARIN
	173.213.210.0/24	NBCUniversal		173.213.208.0/20	ARIN
	208.73.112.0/24	NBCUniversal		208.73.112.0/22	ARIN
	208.73.114.0/24	NBCUniversal		208.73.112.0/22	ARIN
	208.73.115.0/24	NBCUniversal		208.73.112.0/22	ARIN

• IPv4 Peers

Country	ASN	Name	Description
	AS7922	COMCAST-7922	Comcast Cable Communications, LLC
	AS3257	GTT-BACKBONE	GTT

• IPv4 Upstreams

Country	ASN	Name	Description
	AS7922	COMCAST-7922	Comcast Cable Communications, LLC
	AS3257	GTT-BACKBONE	GTT

IPv4 Upstream Graph

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IPv4 Upstream Graph

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#
# 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 1997-2025, American Registry for Internet Numbers, Ltd.
#


ASNumber:       19231
ASName:         NBCUNI
ASHandle:       AS19231
RegDate:        2006-12-13
Updated:        2020-07-10    
Ref:            https://rdap.arin.net/registry/autnum/19231


OrgName:        NBCUniversal
OrgId:          NBCUN-5
Address:        30 ROCKEFELLER CENTER
City:           NEW YORK
StateProv:      NY
PostalCode:     10112
Country:        US
RegDate:        2006-12-11
Updated:        2025-01-21
Ref:            https://rdap.arin.net/registry/entity/NBCUN-5


OrgNOCHandle: NBCUO-ARIN
OrgNOCName:   NBCUO-ARIN
OrgNOCPhone:  +1-818-777-9673 
OrgNOCEmail:  nbcu_arinops@nbcuni.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NBCUO-ARIN

OrgAbuseHandle: INFOS6-ARIN
OrgAbuseName:   InfoSec
OrgAbusePhone:  +1-212-664-4444 
OrgAbuseEmail:  sralerts@nbcuni.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/INFOS6-ARIN

OrgTechHandle: NBCUT-ARIN
OrgTechName:   NBCU Technical
OrgTechPhone:  +1-818-777-9673 
OrgTechEmail:  nbcu_arintech@nbcuni.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NBCUT-ARIN

RNOCHandle: NBCUA-ARIN
RNOCName:   NBCU Admin
RNOCPhone:  +1-818-777-9673 
RNOCEmail:  nbcu_arin@nbcuni.com
RNOCRef:    https://rdap.arin.net/registry/entity/NBCUA-ARIN

RAbuseHandle: NBCUA-ARIN
RAbuseName:   NBCU Admin
RAbusePhone:  +1-818-777-9673 
RAbuseEmail:  nbcu_arin@nbcuni.com
RAbuseRef:    https://rdap.arin.net/registry/entity/NBCUA-ARIN

RTechHandle: NBCUT-ARIN
RTechName:   NBCU Technical
RTechPhone:  +1-818-777-9673 
RTechEmail:  nbcu_arintech@nbcuni.com
RTechRef:    https://rdap.arin.net/registry/entity/NBCUT-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 1997-2025, American Registry for Internet Numbers, Ltd.
#