19231 NBCUNI, US
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS3257 GTT-BACKBONE GTT, US
AS7922 COMCAST-7922, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 32827 AS19231 ORIGIN Originate: 1280 /21.68 Transit: 0 /0.00 NBCUNI, US
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 35284 AS19231 NBCUNI, US 5 0 0 5 0 0.00% Prefix AS Path Aggregation Suggestion 50.203.232.0/24 3257 19231 173.213.210.0/24 3257 7922 19231 19231 208.73.112.0/24 3257 7922 19231 19231 208.73.114.0/24 3257 7922 19231 208.73.115.0/24 3257 19231
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS19231 5 More Specifics 5 Total Advertisements NBCUNI, US
50.203.232.0/24 50.128.0.0/9
173.213.210.0/24 173.213.208.0/20
208.73.112.0/24 208.73.112.0/22
208.73.114.0/24 208.73.112.0/22
208.73.115.0/24 208.73.112.0/22
whois: 402590
IANA has recorded AS19231 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS19231\n
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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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
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
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
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
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
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
#
# 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.
#