subnet.im

AS6453TATA Communications (America) Inc

United StatesRegistryARINTypeT1

As of 10th November 2026, AS6453 (TATA Communications (America) Inc), a tier-1 transit network registered in the United States with ARIN, originates 125 IPv4 prefixes covering 561k addresses and 18 IPv6 prefixes. By IPv4 address space that makes it the 670th-largest of the 80,723 networks we see originating IPv4, and the 161st-largest of 18,750 in the United States. It is seen behind 66 upstream networks, most often AS8220 (COLT) and AS35280 (F5 Networks SARL), and in front of 658 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

125

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 networkAS4775Globe TelecomsAS8220COLTAS17660DrukNet ISPAS34984Superonline Ileti…AS35280F5 Networks SARLAS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3356Lumen (Level 3)AS7768Nuh Ahmet Firat t…AS32590Valve Corporation

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

1,392

adjacent networks

Upstreams
665%
Peers
66848%
Downstreams
65847%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 66.

Upstreams of AS6453
NetworkCountryRelationshipPathsVantage pts
AS8220COLTGBPeer981,4703
AS35280F5 Networks SARLFRPeer654,0086
AS17660DrukNet ISPBTAdjacent631,6042
AS4775Globe TelecomsPHAdjacent428,6032
AS34984Superonline Iletisim Hizmetleri A.S.TRPeer402,3582
AS32590Valve CorporationUSPeer393,6086
AS2914NTT America, Inc.USPeer305,54865
AS1299Arelion (fka. Telia Carrier)SEPeer297,06357
AS2497Internet Initiative Japan Inc.JPPeer254,1956
AS3491PCCW Global (HK) Ltd.HKPeer248,09717

Prefixes

All 143

The largest blocks AS6453 originates, widest first.

Largest prefixes originated by AS6453
PrefixAddressesVisibility
64.86.0.0/1665.5k76/76
80.231.0.0/1665.5k76/76
195.219.0.0/1665.5k76/76
63.243.128.0/1732.8k76/76
66.110.0.0/1732.8k76/76
180.87.0.0/1732.8k76/76
209.58.0.0/1732.8k76/76
216.6.0.0/1732.8k76/76
66.110.0.0/1816.4k76/76
66.198.128.0/1816.4k76/76

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

  • Valid76.2%109
  • Invalid4.9%7
  • No ROA18.9%27

Propagation

  • Globally propagated90% of full-feed peers or more94.4%135
  • Partially propagated40% to 90%0.7%1
  • Seen by few peersUnder 40%4.9%7

Prefix sizes

IPv4 — 125 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 11th Oct 2026.

10 announced and 10 withdrawn in all; the most recent are shown.

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