116.66.158.0/23

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
116.66.120.0/24	AS38379	Beijing Tian Wei Xin Tong technology corp. limited	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

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

IP Address	ASN	Details
116.66.159.151	AS17903 Cognizant Technology Solutions India Pvt Ltd,	`2.10ms` from Pune, IN
116.66.158.145	AS17903 Cognizant Technology Solutions India Pvt Ltd,	`1.63ms` from Pune, IN

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
1.158.199.55	AS1221 Telstra Limited	`10.67ms` from Adelaide, AU
129.153.136.215	AS31898 Oracle Corporation	`0.35ms` from Ashburn, US
198.244.52.39	AS396479 Mailgun Technologies Inc.	`0.85ms` from Ashburn, US
51.222.62.23	AS16276 OVH SAS	`0.05ms` from Beauharnois, CA
129.105.237.87	AS103 Northwestern University	`1.58ms` from Chicago, US
95.94.27.87	AS2860 NOS COMUNICACOES, S.A.	`7.62ms` from Lisbon, PT
81.153.200.199	AS2856 British Telecommunications PLC	`4.16ms` from London, GB
64.175.204.55	AS7018 AT&T Enterprises, LLC	`1.71ms` from Los Angeles, US
200.204.1.103	AS27699 TELEFÔNICA BRASIL S.A	`1.39ms` from Osasco, BR
83.108.101.231	AS2119 Telenor Norge AS	`1.72ms` from Oslo, NO
125.183.69.151	AS17858 LG POWERCOMM	`5.79ms` from Seoul, KR
23.236.118.231	AS21859 Zenlayer Inc	`0.20ms` from Singapore, SG
27.121.227.103	AS2519 ARTERIA Networks Corporation	`3.30ms` from Tokyo, JP
41.96.217.39	AS36947 Telecom Algeria	`10.35ms` from Valencia, ES
154.13.194.7	AS46261 QuickPacket, LLC	`0.22ms` from Ashburn, US
71.7.124.71	AS7029 Windstream Communications LLC	`14.90ms` from Chicago, US
107.9.199.23	AS10796 Charter Communications Inc	`10.29ms` from Columbus, US
40.113.229.71	AS8075 Microsoft Corporation	`0.34ms` from Des Moines, US
185.9.31.183	AS12897 ENTEGA Medianet GmbH	`1.45ms` from Frankfurt am Main, DE
91.38.179.55	AS3320 Deutsche Telekom AG	`4.42ms` from Hamburg, DE
93.218.136.151	AS3320 Deutsche Telekom AG	`6.49ms` from Nuernberg, DE
191.123.209.215	AS26615 TIM S/A	`18.28ms` from Osasco, BR
88.165.173.167	AS12322 Free SAS	`5.09ms` from Paris, FR
177.35.46.135	AS28573 Claro NXT Telecomunicacoes Ltda	`12.76ms` from Sao Paulo, BR
221.142.86.39	AS9318 SK Broadband Co Ltd	`5.80ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f2 116.66.159.123

traceroute to 116.66.159.123 (116.66.159.123): 64 hops max, 52 byte packets

2 [AS133296] 150.242.141.25 4.074 ms

3 *

4 *

5 [AS4755] 115.114.136.78 1.675 ms

6 [AS17903] 203.99.214.200 2.298 ms

7 *

8 *

9 [AS17903] 116.66.159.123 1.901 ms

Measurement taken from

IPinfo ProbeNet in Pune, IN

On March 13th 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.

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