AS6421 TATA COMMUNICATIONS (AMERICA) INC

AS6421 - TATA COMMUNICATIONS (AMERICA) INC · registered in the United States

IPv4 addresses9,98426 prefixes · <0.001% of announced IPv4

Rank in United States#2,968largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#9,136of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS6421 in ASN lookup Look up an IP in this network (103.16.252.1) All networks in United States

IPv4 prefixes

All 26 prefixes, in address order.

103.16.252.0/22
116.0.66.0/24
138.104.230.0/23
180.87.13.0/24
180.87.29.0/24
180.87.68.0/24
180.87.91.0/24
180.87.92.0/24
180.87.115.0/24
180.87.119.0/24
180.87.120.0/23
180.87.122.0/24
180.87.124.0/24
180.87.126.0/23
180.87.138.0/23
180.87.140.0/23
180.87.152.0/23
180.87.190.0/23
202.183.64.0/23
202.183.66.0/24
202.183.69.0/24
202.183.70.0/24
202.183.72.0/24
202.183.74.0/23
202.183.76.0/23
202.183.79.0/24

IPv6 prefixes

All 1 prefix.

2405:2001:100::/48

Other ASNs named TATA COMMUNICATIONS (AMERICA) INC

1 other network uses the same organisation name; together with AS6421 they announce 483,840 IPv4 addresses.

ASNNameIPv4 addresses

AS6453AS6453 - TATA COMMUNICATIONS (AMERICA) INC US473,856

Similar-sized networks in United States

ASNNameIPv4 addresses

AS16766#2965 ISLAND-TECHNOLOGY-INC - Island Technology, Inc.9,984

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AS6373#2967 OPUS1 - Opus One9,984

AS11409#2969 EFXSECURE - Equifax, Inc.9,984

AS21789#2970 168-244 - Lowe's Companies, Inc.9,984

AS21817#2971 NORCAST-AS - Wave Broadband9,984

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