ASN Lookup Tool

TATA COMMUNICATIONS AMERICA INC tatacommunications.com US US 38 Routes

AS Data

AS6421

AS6421 – TATA COMMUNICATIONS AMERICA INC

AS Number 6421
AS Name AS6421
Organization TATA COMMUNICATIONS AMERICA INC (tca-51)
Country US
Website tatacommunications.com
Number of IPv4 Routes 37
Number of IPv6 Routes 1
ASN type BUSINESS
Registry ARIN
Date Allocated 1996-04-09

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Use ASN data for AS6421 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
180.87.153.0/24 256
180.87.126.0/24 256
202.183.79.0/24 256
103.16.254.0/23 512
202.183.76.0/24 256
202.183.65.0/24 256
180.87.92.0/24 256
180.87.127.0/24 256
180.87.122.0/24 256
103.16.252.0/23 512
180.87.13.0/24 256
202.183.69.0/24 256
180.87.124.0/24 256
202.183.72.0/24 256
2405:2001:100::/48 ~1×10²⁴
180.87.140.0/24 256
180.87.115.0/24 256
202.183.64.0/24 256
180.87.138.0/24 256
180.87.191.0/24 256
138.104.230.0/24 256
180.87.120.0/24 256
202.183.70.0/24 256
116.0.66.0/24 256
180.87.29.0/24 256
180.87.190.0/24 256
180.87.141.0/24 256
180.87.91.0/24 256
180.87.119.0/24 256
202.183.66.0/24 256
202.183.77.0/24 256
202.183.74.0/24 256
180.87.139.0/24 256
180.87.68.0/24 256
138.104.231.0/24 256
202.183.75.0/24 256
180.87.121.0/24 256
180.87.152.0/24 256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       6421
ASName:         AS6421
ASHandle:       AS6421
RegDate:        1996-04-09
Updated:        2014-04-22
Ref:            https://rdap.arin.net/registry/autnum/6421


OrgName:        TATA COMMUNICATIONS (AMERICA) INC
OrgId:          TCA-51
Address:        2355 Dulles Corner Boulevard Suite 700
City:           Herndon
StateProv:      VA
PostalCode:     20171
Country:        US
RegDate:        2014-01-28
Updated:        2017-01-28
Ref:            https://rdap.arin.net/registry/entity/TCA-51


OrgAbuseHandle: IPNOC14-ARIN
OrgAbuseName:   IP NOC
OrgAbusePhone:  +15143157888 
OrgAbuseEmail:  6453abuse@tatacommunications.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/IPNOC14-ARIN

OrgTechHandle: IPADM470-ARIN
OrgTechName:   IP Admin
OrgTechPhone:  +1 514 315 7888 
OrgTechEmail:  ip-addr@tatacommunications.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPADM470-ARIN

OrgNOCHandle: IPNOC14-ARIN
OrgNOCName:   IP NOC
OrgNOCPhone:  +15143157888 
OrgNOCEmail:  6453abuse@tatacommunications.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/IPNOC14-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number Description Country
AS3762 Instinet US
AS64049 Reliance Jio Infocomm Pte Ltd Singapore SG
AS6939 Hurricane Electric LLC US
AS8359 MTS PJSC RU
AS4775 Globe Telecoms PH
AS45352 IP ServerOne Solutions Sdn Bhd MY
AS4229 Zenlayer Inc US
AS199524 G-Core Labs S.A. LU
AS4134 China Telecom Backbone CN
AS10146 Ford Motor Company SG
AS4755 Tata Communications (formerly VSNL) IN
AS9286 KINX KR
AS139341 ACEVILLE PTE.LTD. SG
AS10794 Bank of America, National Association US
AS147094 PT. MITRA VISIONER PRATAMA ID
AS8220 COLT Technology Services Group Limited GB
AS32590 Valve Corporation US
AS7713 PT Telekomunikasi Indonesia ID
AS38082 True International Gateway Co., Ltd. TH
AS396356 Latitude.sh US
AS138128 PT Solnet Indonesia ID
AS9507 NextHop Pty Ltd AU
AS58717 Summit Communications Ltd BD
AS140627 OneQode AU
AS34414 Nokia Oyj FI
AS38001 NewMedia Express Pte Ltd SG
AS136106 PT. Mega Akses Persada ID
AS38158 PT. Cyberindo Aditama ID
AS24482 SG.GS SG
AS6453 TATA COMMUNICATIONS AMERICA INC US
AS9304 HGC Global Communications Limited HK
AS4635 Hong Kong Internet Exchange--Route Server 1 HK
AS45701 PT. Internet Madju Abad Milenindo ID
AS135391 AOFEI DATA INTERNATIONAL COMPANY LIMITED HK
AS4635 The Hong Kong Internet Exchange Limited HK
AS14630 Invesco Group Services, Inc. US
AS56665 Proximus Luxembourg S.A. LU
AS59217 Azonne Limited HK
AS141642 PT Ring Media Nusantara ID
AS36236 NetActuate, Inc US
AS18106 Viewqwest Pte Ltd SG
AS16276 OVH SAS FR
AS56043 PEPSICO INTERNATIONAL PTE. LTD. SG
AS9908 HK Cable TV Ltd HK
AS151326 DCConnect Communication Pte. Ltd. SG
AS133210 EN Technologies Pte Ltd SG
AS37989 DCS1 Pte. Ltd. SG
AS6453 TATA COMMUNICATIONS (AMERICA) INC US
AS45474 Nexusguard Pte. Ltd. SG
AS4755 Tata Communications Limited IN
AS38195 Superloop AU
AS39120 Convergenze S.p.A. IT
AS215859 Hetzner Online GmbH DE
AS55720 Gigabit Hosting Sdn Bhd MY
AS139341 ACE SG
AS23947 PT.Mora Telematika Indonesia ID
AS56274 GM Asia Pacific, Singapore SG
AS4766 Korea Telecom KR
AS45445 General Motors Korea, Bupyeong SG
AS6774 Belgacom International Carrier Services SA BE

Upstreams

AS Number Description Country
AS39120 Convergenze S.p.A. IT
AS6453 TATA COMMUNICATIONS AMERICA INC US
AS9304 HGC Global Communications Limited HK
AS9507 NextHop Pty Ltd AU
AS8220 COLT Technology Services Group Limited GB
AS4766 Korea Telecom KR
AS6939 Hurricane Electric LLC US
AS8359 MTS PJSC RU
AS135391 AOFEI DATA INTERNATIONAL COMPANY LIMITED HK
AS4635 The Hong Kong Internet Exchange Limited HK
AS137409 GSL Networks Pty LTD AU
AS4755 Tata Communications Limited IN

Downstreams

AS Number Description Country
AS10794 Bank of America, National Association US
AS3762 Instinet US
AS14630 Invesco Group Services, Inc. US
AS63804 DOVA Corporation JP
AS396356 Latitude.sh US
AS56274 GENERAL MOTORS OVERSEAS DISTRIBUTION LLC SG
AS10146 Ford Motor Company SG
AS139341 ACEVILLE PTE.LTD. SG
AS10361 Bloomberg, LP US
AS56043 PEPSICO INTERNATIONAL PTE. LTD. SG

Contacts

Email Contacts

ip-addr@tatacommunications.com

Abuse Contacts

6453abuse@tatacommunications.com

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Frequently Asked Questions

ASN AS6421 is an Autonomous System Number used to identify a network for BGP internet routing.
AS6421 is listed under TATA COMMUNICATIONS AMERICA INC.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.