subnet.im

AS6453TATA Communications (America) Inc

United StatesRegistryARINTypeT1

As of 13th October 2026, AS6453 (TATA Communications (America) Inc), a tier-1 transit network registered in the United States with ARIN, originates 126 IPv4 prefixes covering 561k addresses and 18 IPv6 prefixes. By IPv4 address space that makes it the 658th-largest of the 79,585 networks we see originating IPv4, and the 156th-largest of 18,443 in the United States. It is seen behind 63 upstream networks, most often AS8220 (COLT) and AS35280 (F5 Networks SARL), and in front of 659 downstream networks. 76% of its announcements have a valid RPKI ROA; 7 are RPKI-invalid. 94% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

126

IPv6 prefixes

18

IPv4 addresses

561k

IPv6 /64s

65B

Upstream graph

The networks AS6453 is seen behind, one and two hops out, drawn from real AS paths.

AS6453Toward the internet core
Upstream graph for AS6453: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS6453TATA Communicatio…This networkAS8220COLTAS17660DrukNet ISPAS32590Valve CorporationAS34984Superonline Ileti…AS35280F5 Networks SARLAS3356Lumen (Level 3)AS15576NTS workspace AGAS2914NTT America, Inc.AS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS7768Nuh Ahmet Firat t…

Networks observed one and two hops upstream of AS6453 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

1,386

adjacent networks

Upstreams
635%
Peers
66448%
Downstreams
65948%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 63.

Upstreams of AS6453
NetworkCountryRelationshipPathsVantage pts
AS8220COLTGBPeer969,4894
AS35280F5 Networks SARLFRPeer652,8756
AS17660DrukNet ISPBTPeer630,0412
AS32590Valve CorporationUSPeer616,9536
AS34984Superonline Iletisim Hizmetleri A.S.TRPeer444,5513
AS4775Globe TelecomsPHPeer429,3202
AS1299Arelion (fka. Telia Carrier)SEPeer356,32960
AS2914NTT America, Inc.USPeer335,36768
AS2497Internet Initiative Japan Inc.JPPeer237,6476
AS293ESnetUSPeer230,4611

Prefixes

All 144

The largest blocks AS6453 originates, widest first.

Largest prefixes originated by AS6453
PrefixAddressesVisibility
64.86.0.0/1665.5k81/81
80.231.0.0/1665.5k81/81
195.219.0.0/1665.5k80/81
63.243.128.0/1732.8k81/81
66.110.0.0/1732.8k81/81
180.87.0.0/1732.8k81/81
209.58.0.0/1732.8k81/81
216.6.0.0/1732.8k81/81
66.110.0.0/1816.4k81/81
66.198.128.0/1816.4k81/81

Routing health

How AS6453's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid75.7%109
  • Invalid4.9%7
  • No ROA19.4%28

Propagation

  • Globally propagated90% of full-feed peers or more93.8%135
  • Partially propagated40% to 90%0.7%1
  • Seen by few peersUnder 40%5.6%8

Prefix sizes

IPv4 — 126 prefixes

IPv6 — 18 prefixes

  • /2934.4B × /645.6%1
  • /318.6B × /645.6%1
  • /324.3B × /6427.8%5
  • /36268M × /645.6%1
  • /3867.1M × /6422.2%4
  • /4016.8M × /645.6%1
  • /4865.5k × /6427.8%5

Recent changes

Announcements that started or stopped since 13th Sept 2026.

19 announced and 19 withdrawn in all; the most recent are shown.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.