203.99.210.0/23

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:        203.99.208.0 - 203.99.211.255
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

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 no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.99.211.1	AS17903 Cognizant Technology Solutions India Pvt Ltd,	`0.37ms` from Kolkata, IN
203.99.210.16	AS17903 Cognizant Technology Solutions India Pvt Ltd,	`0.39ms` from Kolkata, 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
168.76.14.87	AS137951 ASLINE LIMITED	`0.70ms` from Hong Kong, HK
220.85.111.199	AS4766 Korea Telecom	`1.30ms` from Incheon, KR
178.74.205.103	AS49223 EVEREST TV AND RADIO COMPANY LLC	`3.00ms` from Kyiv, UA
83.158.12.7	AS29447 Scaleway SAS	`0.73ms` from Milan, IT
178.1.65.71	AS3209 Vodafone GmbH	`5.55ms` from Munich, DE
90.16.229.55	AS3215 Orange S.A.	`6.71ms` from Paris, FR
211.218.223.183	AS4766 Korea Telecom	`1.37ms` from Seoul, KR
14.47.99.135	AS4766 Korea Telecom	`1.68ms` from Seoul, KR
183.191.34.87	AS4837 CHINA UNICOM China169 Backbone	`2.76ms` from Taiyuan, CN
197.24.243.71	AS37693 OOREDOO TUNISIE SA	`16.88ms` from Tunis, TN
23.22.152.23	AS14618 Amazon.com, Inc.	`0.49ms` from Ashburn, US
50.123.175.167	AS5650 Frontier Communications of America, Inc.	`19.09ms` from Ashburn, US
45.240.91.39	AS24863 Link Egypt (Link.NET)	`9.10ms` from Cairo, EG
156.223.181.135	AS8452 TE-AS	`6.70ms` from Cairo, EG
38.83.167.247	AS400164 Ripple Fiber Inc.	`4.40ms` from Durham, US
79.239.170.7	AS3320 Deutsche Telekom AG	`8.41ms` from Frankfurt am Main, DE
101.96.64.39	AS24173 Netnam Company	`0.92ms` from Hanoi, VN
35.230.237.183	AS396982 Google LLC	`0.07ms` from Johannesburg, ZA
93.230.9.23	AS3320 Deutsche Telekom AG	`3.50ms` from Nuernberg, DE
153.202.173.87	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.40ms` from Osaka, JP
38.14.136.167	AS54600 PEG TECH INC	`0.69ms` from San Jose, US
59.27.44.215	AS4766 Korea Telecom	`3.22ms` from Seoul, KR
140.113.159.183	AS9916 National Yang Ming Chiao Tung University	`2.88ms` from Taipei, TW
81.43.133.103	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.72ms` from Madrid, ES
112.206.31.151	AS9299 Philippine Long Distance Telephone Company	`1.50ms` from Manila, PH

Traceroute

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

traceroute -a -n -q1 -f3 203.99.210.16

traceroute to 203.99.210.16 (203.99.210.16): 64 hops max, 52 byte packets

3 [] 15.230.139.230 349.573 ms

4 *

5 *

6 *

7 [AS4755] 115.114.72.86 0.794 ms

8 [AS4755] 115.114.72.85 0.264 ms

9 [AS17903] 203.99.210.16 0.612 ms

Measurement taken from

IPinfo ProbeNet in Kolkata, 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.

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