203.99.192.0/21

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:        203.99.192.0 - 203.99.195.0
netname:        COGNIZANT
descr:          Cognizant Technology Solution India Pvt Ltd, India Net block
country:        IN
admin-c:        NA108-AP
tech-c:         NA108-AP
abuse-c:        AC1821-AP
status:         ASSIGNED NON-PORTABLE
mnt-by:         MAINT-IN-COGNIZANT
mnt-irt:        IRT-COGNIZANT-IN
last-modified:  2021-07-14T13:09:34Z
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

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:          203.99.192.0/19
descr:          Cognizant
origin:         AS17903
mnt-by:         MAINT-IN-COGNIZANT
country:        IN
last-modified:  2008-09-04T07:54:34Z
source:         APNIC

Overlapping Ranges

BGP prefixes that are contained by 203.99.192.0/21

Range	ASN	Company	Num of IPs
203.99.196.0/22	AS17903	Cognizant Technology Solution India Pvt Ltd, India Net block	1,024

Nearby Ranges

BGP prefixes that overlap with 203.99.0.0/16

Range	ASN	Company	Num of IPs
203.99.160.0/19	AS17557	Pakistan Telecommunication Company Limited	8,192
203.99.48.0/20	AS23674	Nayatel (Pvt) Ltd	4,096
203.99.72.0/21	AS131909	OCC Co., Ltd.	2,048
203.99.224.0/21	AS23836	RELATION Co., Ltd.	2,048
203.99.240.0/21	AS24270	ITOCHU Techno-Solutions Corporation	2,048
203.99.72.0/22	AS131909	OCC Co., Ltd.	1,024
203.99.136.0/22	AS38891	Measat Satellite Systems Sdn. Bhd.	1,024
203.99.156.0/22	AS38800	Digicel Samoa Ltd	1,024
203.99.196.0/22	AS17903	Cognizant Technology Solution India Pvt Ltd, India Net block	1,024
203.99.204.0/22	AS17903	Cognizant Technology Solution India Pvt Ltd, India Net block	1,024
203.99.150.0/23	AS152097	Centrefit Communications	512
203.99.130.0/23	AS45287	PT. Varnion Technology Semesta	512
203.99.252.0/23	AS24190	The Stock Exchange of Thailand	512
203.99.146.0/23	AS150756	Floppy Ltd.	512
203.99.13.0/24	AS23764	Chinatelecom Next Carrying Network backbone	256
203.99.138.0/24	AS38891	M5 Network Services	256
203.99.145.0/24	AS137453	Exabyte ltd	256
203.99.143.0/24	AS45485	5th Floor, Lakeside 2	256
203.99.165.0/24	AS17557	DSLAM Management IP's for 60K project	256
203.99.144.0/24	AS137453	Asia Pacific Network Information Centre	256
203.99.255.0/24	AS17993	Vodafone Samoa Limited	256
203.99.10.0/24	AS23764	Chinatelecom Next Carrying Network backbone	256
203.99.11.0/24	AS23764	Chinatelecom Next Carrying Network backbone	256

Hosted domains

There are 2 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.99.197.32	AS17903 Cognizant Technology Solutions India Pvt Ltd,	`1.66ms` from Chennai, IN
203.99.199.199	AS17903 Cognizant Technology Solutions India Pvt Ltd,	`0.92ms` from Chennai, IN
203.99.195.255	AS17903 Cognizant Technology Solutions India Pvt Ltd,	`0.93ms` from Chennai, IN
203.99.193.11	AS17903 Cognizant Technology Solutions India Pvt Ltd,	`1.19ms` from Chennai, IN
203.99.196.254	AS17903 Cognizant Technology Solutions India Pvt Ltd,	`1.30ms` from Chennai, IN
203.99.192.255	AS17903 Cognizant Technology Solutions India Pvt Ltd,	`0.81ms` from Chennai, 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
172.201.188.69	AS8075 Microsoft Corporation	`0.32ms` from Amsterdam, NL
43.196.26.85	AS55960 Beijing Guanghuan Xinwang Digital	`3.56ms` from Beijing, CN
117.217.181.165	AS9829 National Internet Backbone	`16.75ms` from Bengaluru, IN
61.161.119.149	AS4134 CHINANET-BACKBONE	`5.78ms` from Chongqing, CN
177.201.242.165	AS8167 V tal	`2.19ms` from Curitiba, BR
2.201.136.101	AS3209 Vodafone GmbH	`2.17ms` from Frankfurt am Main, DE
31.54.36.229	AS2856 British Telecommunications PLC	`3.64ms` from London, GB
162.247.61.85	AS26311 Ranch WiFi LLC	`6.49ms` from Los Angeles, US
211.87.147.245	AS4538 China Education and Research Network Center	`1.00ms` from Qingdao, CN
186.5.8.181	AS27947 Telconet S.A	`2.76ms` from Quito, EC
67.151.49.133	AS7029 Windstream Communications LLC	`5.94ms` from Secaucus, US
178.88.119.5	AS9198 JSC Kazakhtelecom	`0.92ms` from Aktau, KZ
185.147.52.21	AS215841 Ebert HERA B.V.	`1.84ms` from Amsterdam, NL
198.74.53.85	AS63949 Akamai Connected Cloud	`0.38ms` from Atlanta, US
34.22.214.165	AS396982 Google LLC	`0.16ms` from Brussels, BE
186.122.252.5	AS11664 Techtel LMDS Comunicaciones Interactivas S.A.	`17.68ms` from Buenos Aires, AR
64.136.106.229	AS55204 ClearPoint	`8.56ms` from Charlotte, US
201.195.242.197	AS11830 Instituto Costarricense de Electricidad y Telecom.	`1.23ms` from Curridabat, CR
217.86.78.149	AS3320 Deutsche Telekom AG	`7.06ms` from Frankfurt am Main, DE
118.223.101.213	AS9318 SK Broadband Co Ltd	`2.82ms` from Incheon, KR
176.53.72.229	AS42926 Radore Veri Merkezi Hizmetleri A.S.	`0.98ms` from Istanbul, TR
119.177.91.213	AS4837 CHINA UNICOM China169 Backbone	`4.84ms` from Jinan, CN
154.57.215.229	AS135407 Trans World Enterprise Services (Private) Limited	`0.83ms` from Karachi, PK
184.85.92.229	AS16625 Akamai Technologies, Inc.	`0.58ms` from Melbourne, AU
98.58.14.245	AS7922 Comcast Cable Communications, LLC	`6.73ms` from Miami, US

Traceroute

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

traceroute -a -n -q1 -f6 203.99.193.11

traceroute to 203.99.193.11 (203.99.193.11): 64 hops max, 52 byte packets

6 [AS4755] 115.110.161.182 1.216 ms

7 [AS17903] 203.99.193.11 1.323 ms

Measurement taken from

IPinfo ProbeNet in Chennai, IN

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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