1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.153.0.0/16
  4. AS24186  | 203.153.37.0/24

203.153.37.0/24

AS24186  ·  RailTel Corporation of India Ltd

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Summary

Country India
Domain railtelindia.com
ASN AS24186
Parent Range 203.153.32.0/20
Registry APNIC
ID SERVER-IN

WHOIS Details

inetnum:        203.153.37.64 - 203.153.37.127
netname:        Server-IN
descr:          Railnet-Natting-Server-Public
country:        IN
admin-c:        ASC8-AP
tech-c:         ASC8-AP
status:         ASSIGNED NON-PORTABLE
mnt-by:         MAINT-IN-RAILTEL
mnt-by:         MAINT-IN-IRINN
mnt-routes:     MAINT-IN-IRINN
mnt-irt:        IRT-RAILTEL-IN
last-modified:  2025-09-27T09:36:13Z
source:         APNIC

irt:            IRT-RAILTEL-IN
address:        Plot No, 143
address:        Sector 44 ,Gurugram
address:        Haryana ,122003
e-mail:         abuse@railtelindia.com
abuse-mailbox:  abuse@railtelindia.com
admin-c:        NA1011-AP
tech-c:         NA1011-AP
auth:           # Filtered
mnt-by:         MAINT-IN-RAILTEL
mnt-by:         MAINT-IN-IRINN
last-modified:  2026-02-10T04:57:40Z
source:         APNIC

person:         Anand Singh Chandel
address:        6th Floor, IIIrd Block, Delhi Technology Park, Shastri Park, Delhi-110053
country:        IN
phone:          +91-11-22185933
e-mail:         a.chandel@railtelindia.com
nic-hdl:        ASC8-AP
mnt-by:         MAINT-IN-RAILTEL
mnt-by:         MAINT-IN-IRINN
last-modified:  2025-09-27T09:36:11Z
source:         APNIC

route:          203.153.37.0/24
descr:          RailTel Corporation Of India Ltd.
origin:         AS24186
mnt-lower:      MAINT-IN-RAILTEL
mnt-routes:     MAINT-IN-RAILTEL
mnt-by:         MAINT-IN-RAILTEL
mnt-by:         MAINT-IN-IRINN
mnt-routes:     MAINT-IN-IRINN
last-modified:  2025-12-14T22:04:35Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 203.153.37.0/24

Range ASN Company Num of IPs
203.153.32.0/20 AS24186 RailTel Corporation is an Internet Service Provider. 4,096

Nearby Ranges

BGP prefixes that overlap with 203.153.0.0/16

Range ASN Company Num of IPs
203.153.224.0/19 AS4826 VOCUS PTY LTD 8,192
203.153.128.0/20 AS7470 True Internet Co., Ltd. 4,096
203.153.192.0/20 AS9336 XYZ Telecom Pty Ltd 4,096
203.153.144.0/20 AS3786 SookMyung Womens university 4,096
203.153.32.0/20 AS24186 RailTel Corporation is an Internet Service Provider. 4,096
203.153.80.0/20 AS18206 TM TECHNOLOGY SERVICES SDN. BHD. 4,096
203.153.220.0/22 AS18001 Dialog Axiata Plc 1,024
203.153.16.0/22 AS38195 SUPERLOOP (AUSTRALIA) PTY LTD 1,024
203.153.56.0/22 AS4721 JCOM Co., Ltd. 1,024
203.153.210.0/23 AS45518 Ivy Comptech Pvt Ltd 512
203.153.4.0/23 AS38578 KLN Logistics (Hong Kong) Limited - THE ONE - IN ASIA 512
203.153.50.0/23 AS38040 TOT International Internet Gateway, TOT Public Company Limited 512
203.153.46.0/24 AS24186 Railtel backbone 256
203.153.47.0/24 AS24186 Railtel Loopback 256
203.153.100.0/24 AS24207 Infrastruktur N2C 256
203.153.101.0/24 AS24207 Infrastruktur N2C 256
203.153.102.0/24 AS24207 Infrastruktur N2C 256
203.153.103.0/24 AS24207 Infrastruktur N2C 256
203.153.105.0/24 AS24207 Infrastruktur N2C 256
203.153.106.0/24 AS24207 Infrastruktur N2C 256
203.153.107.0/24 AS24207 Infrastruktur N2C 256
203.153.108.0/24 AS24207 Infrastruktur N2C 256
203.153.109.0/24 AS24207 Infrastruktur N2C 256
203.153.110.0/24 AS24207 Infrastruktur 1st NOC N2C 256
203.153.111.0/24 AS24207 Infrastruktur N2C 256
203.153.112.0/24 AS24207 Infrastruktur N2C 256
203.153.113.0/24 AS24207 Infrastruktur N2C 256
203.153.114.0/24 AS24207 Infrastruktur N2C 256
203.153.115.0/24 AS24207 Infrastruktur N2C 256
203.153.116.0/24 AS24207 Infrastruktur N2C 256
203.153.117.0/24 AS24207 Infrastruktur N2C 256
203.153.118.0/24 AS24207 Infrastruktur N2C 256
203.153.119.0/24 AS24207 Infrastruktur N2C 256
203.153.96.0/24 AS24207 Infrastruktur N2C 256
203.153.97.0/24 AS24207 Infrastruktur N2C 256
203.153.98.0/24 AS24207 Infrastruktur N2C 256
203.153.99.0/24 AS24207 Infrastruktur N2C 256
203.153.20.0/24 AS131769 Pelanggan Coorporate dan IP NAT Pelanggan Broadband 256
203.153.27.0/24 AS24525 Personal Broadband Customers 256
203.153.29.0/24 AS24525 Personal Broadband Customers 256
203.153.30.0/24 AS24525 Personal Broadband Customers 256
203.153.31.0/24 AS24525 Personal Broadband Customers 256
203.153.120.0/24 AS38505 PT. Graha Multimedia Nusantara 256
203.153.121.0/24 AS38505 PT. Graha Multimedia Nusantara 256
203.153.122.0/24 AS38505 PT. Graha Multimedia Nusantara 256
203.153.123.0/24 AS38505 PT. Graha Multimedia Nusantara 256
203.153.124.0/24 AS38505 PT. Graha Multimedia Nusantara 256
203.153.125.0/24 AS38505 PT. Graha Multimedia Nusantara 256
203.153.126.0/24 AS38505 PT. Graha Multimedia Nusantara 256
203.153.127.0/24 AS38505 PT. Graha Multimedia Nusantara 256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.153.37.37 smportkolkata.in 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity
Read more

Pingable IPs

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

IP Address ASN Details
203.153.37.1 AS24186 RailTel Corporation of India Ltd 1.00ms 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
77.166.221.168 AS1136 KPN B.V. 3.00ms from Amsterdam, NL
195.121.95.56 AS8737 KPN B.V. 0.44ms from Amsterdam, NL
81.182.192.152 AS5483 Magyar Telekom Plc. 2.75ms from Budapest, HU
68.51.32.136 AS7922 Comcast Cable Communications, LLC 11.28ms from Chicago, US
62.155.218.72 AS3320 Deutsche Telekom AG 8.42ms from Frankfurt am Main, DE
85.23.236.248 AS16086 DNA Oyj 5.43ms from Helsinki, FI
95.159.139.24 AS12389 PJSC Rostelecom 15.85ms from Khabarovsk, RU
212.169.179.152 AS12479 Orange Espagne SA 9.42ms from Madrid, ES
121.138.211.232 AS4766 Korea Telecom 1.04ms from Seoul, KR
27.191.231.8 AS4134 CHINANET-BACKBONE 9.31ms from Shijiazhuang, CN
121.45.74.152 AS7545 TPG Telecom Limited 11.75ms from Adelaide, AU
40.138.190.104 AS7029 Windstream Communications LLC 3.43ms from Atlanta, US
179.178.55.200 AS18881 TELEFÔNICA BRASIL S.A 1.16ms from Curitiba, BR
34.0.140.168 AS15169 Google LLC 0.15ms from Dallas, US
191.96.45.120 AS396356 Latitude.sh 0.10ms from Dallas, US
15.158.150.24 AS16509 Amazon.com, Inc. 0.28ms from Hanoi, VN
114.158.172.8 AS4713 NTT DOCOMO BUSINESS,Inc. 4.68ms from Osaka, JP
45.65.143.184 AS266530 WASHINGTON MARCONE DE OLIVEIRA 12.39ms from Osasco, BR
192.169.196.120 AS26496 GoDaddy.com, LLC 0.92ms from Phoenix, US
188.205.77.152 AS1136 KPN B.V. 16.90ms from Amsterdam, NL
75.57.17.248 AS7018 AT&T Enterprises, LLC 9.06ms from Atlanta, US
161.246.69.56 AS9486 King Mongkut's Institute of Technology Ladkrabang 2.07ms from Bangkok, TH
73.252.76.56 AS7922 Comcast Cable Communications, LLC 15.09ms from Dallas, US
121.236.202.8 AS4134 CHINANET-BACKBONE 5.03ms from Nanjing, CN
20.196.203.8 AS8075 Microsoft Corporation 0.31ms 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 -f4 203.153.37.198
traceroute to 203.153.37.198 (203.153.37.198): 64 hops max, 52 byte packets
5 *
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Mumbai, IN
On

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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