116.66.156.0/24

AS17903 · Cognizant Technology Solutions India Pvt Ltd,

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Summary

Country	India
Domain	cognizant.com
ASN	AS17903
Registry	APNIC
ID	COGNIZANT

WHOIS Details

inetnum:        116.66.128.0 - 116.66.159.255
netname:        COGNIZANT
descr:          Cognizant Technology Solution India Pvt Ltd, India
country:        IN
org:            ORG-CTSI2-AP
admin-c:        NA108-AP
tech-c:         NA108-AP
abuse-c:        AC1821-AP
status:         ALLOCATED PORTABLE
remarks:        abuse@cognizant.com
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-IN-COGNIZANT
mnt-routes:     MAINT-IN-COGNIZANT
mnt-irt:        IRT-COGNIZANT-IN
last-modified:  2020-06-22T06:43:31Z
source:         APNIC

irt:            IRT-COGNIZANT-IN
address:        Cognizant Technology Solutions
address:        India.
e-mail:         abuse@cognizant.com
abuse-mailbox:  abuse@cognizant.com
admin-c:        NA108-AP
tech-c:         NA108-AP
auth:           # Filtered
remarks:        abuse@cognizant.com was validated on 2025-12-09
mnt-by:         MAINT-IN-COGNIZANT
last-modified:  2025-12-09T15:28:36Z
source:         APNIC

organisation:   ORG-CTSI2-AP
org-name:       Cognizant Technology Solutions India Pvt Ltd
org-type:       LIR
country:        IN
address:        5/535, Old Mahabalipuram Road
address:        Okkiyam, Thoraipakkam
phone:          +91-44-5209-6000
fax-no:         +91-44-5209-6060
e-mail:         connect@cognizant.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:59Z
source:         APNIC

role:           ABUSE COGNIZANTIN
country:        ZZ
address:        Cognizant Technology Solutions
address:        India.
phone:          +000000000
e-mail:         abuse@cognizant.com
admin-c:        NA108-AP
tech-c:         NA108-AP
nic-hdl:        AC1821-AP
remarks:        Generated from irt object IRT-COGNIZANT-IN
remarks:        abuse@cognizant.com was validated on 2025-12-09
abuse-mailbox:  abuse@cognizant.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-09T15:29:02Z
source:         APNIC

person:         Network Administrator
nic-hdl:        NA108-AP
e-mail:         connect@cognizant.com
address:        Cognizant Technology Solutions
address:        India.
phone:          +91-44-42096000
fax-no:         +91-44-42096060
country:        IN
mnt-by:         MAINT-IN-COGNIZANT
last-modified:  2008-10-29T06:30:55Z
source:         APNIC

route:          116.66.128.0/19
descr:          Cognizant
origin:         AS17903
mnt-by:         MAINT-IN-COGNIZANT
country:        IN
last-modified:  2008-09-04T07:54:55Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 116.66.0.0/16

Range	ASN	Company	Num of IPs
116.66.208.0/20	AS3491	PCCWGlobal (HK) Ltd.	4,096
116.66.200.0/21	AS38496	PT Cyber Network Indonesia	2,048
116.66.192.0/21	AS4007	Subisu CableNet(Pvt) Ltd,	2,048
116.66.200.0/21	AS137346	PT Cyber Network Indonesia	2,048
116.66.180.0/22	AS131448	FLAT/RM 5033 5/F	1,024
116.66.188.0/22	AS135724	Allnet Broadband Network Pvt Ltd	1,024
116.66.148.0/22	AS17903	Cognizant Technology Solution India Pvt Ltd, Philippines Net block	1,024
116.66.152.0/22	AS17903	Cognizant Technology Solution India Pvt Ltd, India Net block	1,024
116.66.130.0/24	AS17903	Cognizant Technology Solution India Pvt Ltd, India Net block	256
116.66.140.0/24	AS17903	Cognizant Technology Solution India Pvt Ltd, India Net block	256
116.66.141.0/24	AS17903	Cognizant Technology Solution India Pvt Ltd, India Net block	256
116.66.129.0/24	AS30462	Cognizant Technology Solution India Pvt Ltd, India Net block	256
116.66.193.0/24	AS4007	Point to Point IPs	256
116.66.196.0/24	AS4007	SUBISU_Retail_Pool42	256
116.66.197.0/24	AS4007	Pokhara ISP IPs	256
116.66.123.0/24	AS45110	Beijing Tian Wei Xin Tong technology corp. limited	256
116.66.180.0/24	AS131448	BEST TARGET (HONG KONG) LIMITED	256
116.66.181.0/24	AS131448	BEST TARGET (HONG KONG) LIMITED	256
116.66.183.0/24	AS131448	BEST TARGET (HONG KONG) LIMITED	256
116.66.176.0/24	AS136993	CLOUD VALLEY TECHNOLOGY LIMITED	256
116.66.177.0/24	AS136993	CLOUD VALLEY TECHNOLOGY LIMITED	256
116.66.178.0/24	AS136993	CLOUD VALLEY TECHNOLOGY LIMITED	256
116.66.179.0/24	AS136993	CLOUD VALLEY TECHNOLOGY LIMITED	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

14 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
116.66.156.8	AS17903 Cognizant Technology Solutions India Pvt Ltd,	`0.56ms` from Santa Clara, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
145.87.251.184	AS35467 DDFR IT Infra & Security B.V.	`3.84ms` from Amsterdam, NL
132.164.124.232	AS8075 Microsoft Corporation	`0.29ms` from Amsterdam, NL
172.193.89.8	AS8075 Microsoft Corporation	`0.32ms` from Boydton, US
108.250.35.104	AS7018 AT&T Enterprises, LLC	`11.97ms` from Chicago, US
98.156.6.72	AS11427 Charter Communications Inc	`13.91ms` from Dallas, US
78.147.139.168	AS13285 TalkTalk Communications Limited	`3.02ms` from London, GB
18.169.183.72	AS16509 Amazon.com, Inc.	`0.20ms` from London, GB
62.110.101.184	AS3269 Telecom Italia S.p.A.	`6.84ms` from Milan, IT
176.196.145.200	AS39927 E-Light-Telecom Ltd.	`4.76ms` from Novosibirsk, RU
83.204.172.88	AS3215 Orange S.A.	`1.40ms` from Paris, FR
59.1.4.88	AS4766 Korea Telecom	`4.48ms` from Seoul, KR
61.189.23.24	AS4837 CHINA UNICOM China169 Backbone	`6.95ms` from Tieling, CN
126.118.195.8	AS17676 SoftBank Corp.	`10.96ms` from Tokyo, JP
202.240.219.56	AS4725 SoftBank Corp.	`3.67ms` from Tokyo, JP
100.30.213.184	AS14618 Amazon.com, Inc.	`0.98ms` from Ashburn, US
5.204.66.72	AS213155 Yettel Hungary Ltd.	`9.91ms` from Budapest, HU
182.140.250.40	AS38283 CHINANET SiChuan Telecom Internet Data Center	`1.45ms` from Chengdu, CN
79.225.143.120	AS3320 Deutsche Telekom AG	`2.76ms` from Frankfurt am Main, DE
91.156.86.104	AS719 Elisa Oyj	`1.15ms` from Helsinki, FI
46.235.37.24	AS206733 Beeks Financial Cloud Ltd	`0.33ms` from Hong Kong, HK
75.167.26.24	AS209 CenturyLink Communications, LLC	`1.48ms` from Phoenix, US
86.196.182.168	AS3215 Orange S.A.	`7.66ms` from Saint-Denis, FR
222.238.11.56	AS9318 SK Broadband Co Ltd	`4.77ms` from Seoul, KR
52.74.224.152	AS16509 Amazon.com, Inc.	`0.12ms` from Singapore, SG
69.158.116.104	AS577 Bell Canada	`5.46ms` from Toronto, CA

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f5 116.66.156.199

traceroute to 116.66.156.199 (116.66.156.199): 64 hops max, 52 byte packets

5 [AS17903] 116.66.156.199 150.572 ms

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

On March 20th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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