AS19231 NBCUniversal

NBCUNI - NBCUniversal · registered in the United States

IPv4 addresses1,2804 prefixes · <0.001% of announced IPv4

Rank in United States#7,455largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#28,480of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS19231 in ASN lookup Look up an IP in this network (50.203.232.1) All networks in United States

IPv4 prefixes

All 4 prefixes, in address order.

50.203.232.0/24
173.213.210.0/24
208.73.112.0/24
208.73.114.0/23

Other ASNs named NBCUniversal

4 other networks use the same organisation name; together with AS19231 they announce 27,904 IPv4 addresses.

ASNNameIPv4 addresses

AS17035NBCUNI-17035 - NBCUniversal US24,064

AS17060E-NETWORKS - NBCUniversal US1,280

AS54040NBCUNI - NBCUniversal US768

AS22694CNBC - NBCUniversal US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS18786#7452 ALL-POINTS-BROADBAND-1 - All Points Broadband1,280

AS18828#7453 TRIMBLE-WEST - Trimble, Inc.1,280

AS19208#7454 INFINITE-CAMPUS-NV - Infinite Campus, Incorporated1,280

AS19409#7456 VWCREDIT-COM - VW CREDIT, INC1,280

AS19717#7457 MAINSTREAMDATA-375 - Mainstream Data, Inc.1,280

AS19808#7458 ASNBLK-VTLA2 - NTT Global Networks Incorporated1,280

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources