All ASNs

Autonomous System details for AS6421

AS6421

TATA COMMUNICATIONS (AMERICA) INC

AS6421 — TATA COMMUNICATIONS (AMERICA) INC

AS Name

AS6421

Country

United States (US)

Website

Number of IPv4

9,472

Number of IPv6

1.21 × 10²⁴

ASN type

Hosting

Status

Assigned

Registry

ARIN

Allocated

April 09, 1996

Last updated

April 22, 2014

IP Ranges

35 IPv4 prefixes, 1 IPv6 prefixes

Prefix	Company	Number of IPs
103.16.252.0/23	Tata Communications (CANADA) Ltd.	512
103.16.254.0/23	URGENT SHIFTING FROM AS 6453 to AS 6421	512
116.0.66.0/24	TATA Communications Ltd.	256
138.104.230.0/24	Mott MacDonald	256
138.104.231.0/24	Mott MacDonald	256
180.87.13.0/24	The Executive Centre (Central) Ltd	256
180.87.29.0/24	TATA Communications Ltd.	256
180.87.68.0/24	TATA Communications Ltd.	256
180.87.91.0/24	AU IZO Pool	256
180.87.92.0/24	IZO services in AS6421, required /24 for singapore/hongkong	256
180.87.115.0/24	MNS- Sydney	256
180.87.119.0/24	TATA Communications Ltd.	256
180.87.120.0/24	MSCI INC::691788	256
180.87.121.0/24	TATA Communications Ltd.	256
180.87.122.0/24	Tata Communications (CANADA) Ltd.	256
180.87.124.0/24	Tech Mahindra Limited::730454	256
180.87.126.0/24	TATA Communications Ltd.	256
180.87.127.0/24	MAYBANK KIMENG SECURITIES PTE LTD.::841635	256
180.87.138.0/24	TCL Global Meeting Exchange Asia Pacific	256
180.87.139.0/24	TCL Global Meeting Exchange Asia Pacific	256
180.87.140.0/24	TATA Communications Ltd.	256
180.87.141.0/24	TATA Communications Ltd.	256
180.87.152.0/24	Neotel/High Commission of Singapore	256
180.87.153.0/24	SATELLITE TELEVISION ASIAN REGION LTD	256
180.87.190.0/24	Tata Communications (CANADA) Ltd.	256
180.87.191.0/24	Customer Access-30 and BB internal use	256
202.183.65.0/24	1066094	256
202.183.66.0/24	Customers access /31 and BB internal use for 6421	256
202.183.69.0/24	Internal BB and Xconnect	256
202.183.70.0/24	GSMC Management in Malaysia for our IPC infra via AS 6421//877870	256
202.183.72.0/24	CUST:A06GS_1MH_NP1:NVESTEC BANK PLC::1127189	256
202.183.75.0/24	TATA Communications Ltd.	256
202.183.76.0/24	KEYSIGHT TECHNOLOGIES SINGAPORE (INTERNATIONAL) PTE. LTD:: 1003611	256
202.183.77.0/24	GSMC Management in Malaysia for our IPC infra via AS 6421//877870	256
202.183.79.0/24	Tata Communications (CANADA) Ltd.	256
2405:2001:100::/48	TATA Communications Ltd.	1.21 × 10²⁴

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS6421

22 peers

AS4775 AS7713 AS8359 AS17639 AS23673 AS45352 AS49544 AS63927 AS135391 AS151326 AS6939 AS18106 AS24482 AS32590 AS38001 AS39120 AS55720 AS132337 AS137409 AS140627 AS199524 AS215859

AS6421 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS6421

4 upstreams

AS4766 AS6453 AS8220 AS9507

AS6421 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS6421 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS6421

14 downstreams

AS3762 AS4755 AS9908 AS10146 AS10361 AS10794 AS14630 AS34414 AS45474 AS56043 AS56274 AS63804 AS139341 AS396356

AS6421 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.