AS19812 BT Americas, Inc

RADIANZ-NUTLEY - BT Americas, Inc · registered in the United States

IPv4 addresses7,68012 prefixes · <0.001% of announced IPv4

Rank in United States#3,502largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#11,152of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS19812 in ASN lookup Look up an IP in this network (23.249.8.1) All networks in United States

IPv4 prefixes

All 12 prefixes, in address order.

23.249.8.0/22
64.94.180.0/23
66.150.88.0/23
75.96.144.0/22
75.96.182.0/24
75.98.42.0/24
75.124.64.0/21
75.124.72.0/22
75.124.77.0/24
75.124.79.0/24
136.143.139.0/24
209.191.172.0/24

Other ASNs named BT Americas, Inc

1 other network uses the same organisation name; together with AS19812 they announce 8,448 IPv4 addresses.

ASNNameIPv4 addresses

AS78BA-346-78 - BT Americas, Inc US768

Similar-sized networks in United States

ASNNameIPv4 addresses

AS15139#3499 PANASONIC - Panasonic Corporation of North America7,680

AS17157#3500 IHEARTMEDIA-AS-17157 - iHeartCommunications, Inc.7,680

AS17248#3501 INTERGLOBECOMMUNICATIONSINC - InterGlobe Communications, Inc.7,680

AS20442#3503 YNHHSC - Yale-New Haven Health Services Corporation7,680

AS22808#3504 RESOURCES-22808 - LION RESOURCES, INC.7,680

AS23381#3505 TRAVELERS - Travelers Property Casualty Corp.7,680

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