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Autonomous System

AS6421

TATA COMMUNICATIONS (AMERICA) INC

Announced IPs
9,472
CIDR prefixes
26
ASN
AS6421

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

70/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Isp allocation +5
  • Trust score 70 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About Tata Communications

Tata Communications Limited is an Indian telecommunications company, headquartered in Mumbai, Maharashtra. It was a government-owned telecommunications service provider before being sold to the Tata Group in 2002 under the Third Vajpayee ministry government.

Founded
1986
Headquarters
Mumbai
Industry
telecommunications

AS6421 — global IP footprint

Cities where AS6421 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
103.16.252.0/22 1.0K
0.8%
TATA COMMUNICATIONS AMERICA INC HK
103.16.252.0/23 512
0.0%
TATA COMMUNICATIONS AMERICA INC SG
103.16.254.0/23 512
0.0%
TATA COMMUNICATIONS AMERICA INC HK
138.104.230.0/23 512
0.0%
TATA COMMUNICATIONS AMERICA INC GB
180.87.120.0/23 512
2.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.126.0/23 512
2.1%
TATA COMMUNICATIONS AMERICA INC IN
180.87.138.0/23 512
0.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.140.0/23 512
7.6%
TATA COMMUNICATIONS AMERICA INC IN
180.87.152.0/23 512
0.6%
TATA COMMUNICATIONS AMERICA INC IN
180.87.190.0/23 512
3.3%
TATA COMMUNICATIONS AMERICA INC IN
202.183.64.0/23 512
0.0%
TATA COMMUNICATIONS AMERICA INC AU New South Wales Sydney
202.183.74.0/23 512
0.0%
TATA COMMUNICATIONS AMERICA INC AU Victoria Melbourne
202.183.76.0/23 512
0.0%
TATA COMMUNICATIONS AMERICA INC CA
116.0.66.0/24 256
3.1%
TATA COMMUNICATIONS AMERICA INC SG
180.87.13.0/24 256
0.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.29.0/24 256
12.1%
TATA COMMUNICATIONS AMERICA INC IN
180.87.68.0/24 256
6.6%
TATA COMMUNICATIONS AMERICA INC IN
180.87.91.0/24 256
2.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.92.0/24 256
1.6%
TATA COMMUNICATIONS AMERICA INC IN
180.87.115.0/24 256
0.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.119.0/24 256
3.1%
TATA COMMUNICATIONS AMERICA INC IN
180.87.120.0/24 256
0.0%
TATA COMMUNICATIONS AMERICA INC KR Seoul Seoul
180.87.122.0/24 256
2.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.124.0/24 256
0.8%
TATA COMMUNICATIONS AMERICA INC IN
180.87.140.0/24 256
0.0%
TATA COMMUNICATIONS AMERICA INC SG
180.87.141.0/24 256
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.153.0/24 256
0.0%
TATA COMMUNICATIONS AMERICA INC HK
202.183.65.0/24 256
0.4%
TATA COMMUNICATIONS AMERICA INC CA
202.183.66.0/24 256
2.0%
TATA COMMUNICATIONS AMERICA INC CA
202.183.69.0/24 256
2.0%
TATA COMMUNICATIONS AMERICA INC CA
202.183.70.0/24 256
0.0%
TATA COMMUNICATIONS AMERICA INC CA
202.183.72.0/24 256
3.9%
TATA COMMUNICATIONS AMERICA INC CA
202.183.75.0/24 256
4.3%
TATA COMMUNICATIONS AMERICA INC CA
202.183.79.0/24 256
0.4%
TATA COMMUNICATIONS AMERICA INC CA
180.87.115.128/25 128
0.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.121.128/25 128
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.152.128/25 128
0.0%
TATA COMMUNICATIONS AMERICA INC SG
180.87.115.0/26 64
0.0%
TATA COMMUNICATIONS AMERICA INC AU New South Wales Sydney
180.87.115.96/27 32
0.0%
TATA COMMUNICATIONS AMERICA INC AU New South Wales Sydney
180.87.121.32/27 32
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.121.96/27 32
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.152.0/27 32
0.0%
TATA COMMUNICATIONS AMERICA INC SG
180.87.152.32/27 32
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.115.64/28 16
0.0%
TATA COMMUNICATIONS AMERICA INC AU New South Wales Sydney
180.87.121.80/28 16
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.152.80/28 16
0.0%
TATA COMMUNICATIONS AMERICA INC SG
180.87.152.112/28 16
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.115.88/29 8
0.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.121.0/29 8
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.121.24/29 8
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.121.72/29 8
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.152.64/29 8
0.0%
TATA COMMUNICATIONS AMERICA INC SG
180.87.152.72/29 8
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.152.96/29 8
0.0%
TATA COMMUNICATIONS AMERICA INC SG
180.87.152.104/29 8
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.115.84/30 4
0.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.121.8/30 4
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.121.20/30 4
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.121.68/30 4
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.115.80/31 2
0.0%
TATA COMMUNICATIONS AMERICA INC AU New South Wales Sydney
180.87.115.82/31 2
0.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.121.12/31 2
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.121.14/31 2
0.0%
TATA COMMUNICATIONS AMERICA INC SG
180.87.121.66/31 2
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.121.16 1
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.121.17 1
0.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.121.18 1
0.0%
TATA COMMUNICATIONS AMERICA INC HK
180.87.121.19 1
0.0%
TATA COMMUNICATIONS AMERICA INC IN
180.87.121.64 1
0.0%
TATA COMMUNICATIONS AMERICA INC JP
180.87.121.65 1
0.0%
TATA COMMUNICATIONS AMERICA INC HK

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS6421 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
202.183.64.0/24 100,293 2026-09-10 13:20:35
202.183.74.0/24 85,235 2026-09-10 13:20:35
180.87.29.0/24 74,535 2026-09-10 16:01:54
202.183.65.0/24 74,076 2026-09-10 16:01:55
202.183.72.0/24 73,695 2026-09-10 16:02:23
202.183.75.0/24 69,020 2026-09-10 16:02:17
180.87.115.0/24 68,903 2026-09-10 16:05:32
180.87.124.0/24 18,301 2026-09-10 16:05:23
103.16.252.0/23 18,026 2026-09-10 16:05:10
180.87.127.0/24 14,665 2026-09-10 16:05:17
180.87.126.0/24 14,662 2026-09-10 16:05:25
180.87.92.0/24 14,133 2026-09-10 16:05:25
180.87.152.0/24 13,938 2026-09-10 16:05:26
116.0.66.0/24 13,866 2026-09-10 16:05:24
180.87.140.0/24 13,852 2026-09-10 16:05:39
138.104.230.0/24 13,831 2026-09-10 16:05:27
138.104.231.0/24 13,779 2026-09-10 16:05:30
202.183.70.0/24 12,843 2026-09-10 16:02:20
202.183.69.0/24 12,215 2026-09-10 16:01:50
202.183.77.0/24 12,014 2026-09-10 16:05:41
202.183.79.0/24 12,002 2026-09-10 16:05:36
180.87.190.0/24 11,747 2026-09-10 16:01:56
202.183.76.0/24 11,740 2026-09-10 16:05:40
180.87.139.0/24 11,566 2026-09-10 16:05:46
180.87.138.0/24 11,541 2026-09-10 16:05:45
180.87.141.0/24 11,537 2026-09-10 16:05:40
180.87.153.0/24 11,523 2026-09-10 16:05:27
180.87.122.0/24 11,507 2026-09-10 16:05:31
103.16.254.0/23 11,495 2026-09-10 16:05:28
180.87.68.0/24 11,462 2026-09-10 16:05:42
180.87.121.0/24 11,031 2026-09-10 16:05:30
180.87.13.0/24 10,956 2026-09-10 16:05:38
180.87.191.0/24 10,920 2026-09-10 16:05:23
180.87.91.0/24 8,575 2026-09-10 16:01:58
180.87.119.0/24 6,616 2026-09-10 15:07:15
180.87.120.0/24 6,569 2026-09-10 15:07:15
202.183.66.0/24 6,462 2026-09-10 15:06:56
43.241.40.0/24 2 2026-08-22 18:30:28

Frequently Asked Questions

What is AS6421?

AS6421 is an Autonomous System Number assigned to TATA COMMUNICATIONS (AMERICA) INC. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS6421 announce?

AS6421 announces 9.5K IPv4 addresses distributed across 26 routed CIDR prefixes. The network is registered in United States.

Who operates AS6421?

AS6421 is operated by TATA COMMUNICATIONS AMERICA INC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS6421 registered in?

AS6421 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-10 16:10:59 UTC
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