203.140.160.0/20

AS7511 · SYNAPSE Co.,Ltd.

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	Japan
Domain	synapse.jp
ASN	AS7511
Registry	JPNIC
ID	SYNAPSE-CIDR-BLK-JP

WHOIS Details

inetnum:        203.140.160.0 - 203.140.175.255
netname:        SYNAPSE-CIDR-BLK-JP
descr:          SYNAPSE Co.,Ltd.
remarks:        Email address for spam or abuse complaints : jpnic-tech@synapse.jp
country:        JP
admin-c:        JP00146894
tech-c:         JP00146894
last-modified:  2019-03-19T23:57:37Z
remarks:        This information has been partially mirrored by APNIC from
remarks:        JPNIC. To obtain more specific information, please use the
remarks:        JPNIC WHOIS Gateway at
remarks:        http://www.nic.ad.jp/en/db/whois/en-gateway.html or
remarks:        whois.nic.ad.jp for WHOIS client. (The WHOIS client
remarks:        defaults to Japanese output, use the /e switch for English
remarks:        output)
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 203.140.0.0/16

Range	ASN	Company	Num of IPs
203.140.64.0/19	AS17511	OPTAGE Inc.	8,192
203.140.192.0/20	AS17509	STARNET Co.,Ltd.	4,096
203.140.208.0/20	AS17939	miyazaki cabletelevision network Co.,LTD	4,096
203.140.224.0/20	AS15830	Equinix Japan Enterprise K.K.	4,096
203.140.240.0/20	AS9622	Kurashiki Cable TV Corporation	4,096
203.140.176.0/21	AS59108	KATCH Network Inc.	2,048
203.140.184.0/21	AS59108	KATCH Network Inc.	2,048

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
203.140.164.125	AS7511 SYNAPSE Co.,Ltd.	`11.77ms` from Osaka, JP
203.140.161.40	AS7511 SYNAPSE Co.,Ltd.	`11.48ms` from Osaka, JP
203.140.162.164	AS7511 SYNAPSE Co.,Ltd.	`11.92ms` from Osaka, JP
203.140.160.52	AS7511 SYNAPSE Co.,Ltd.	`11.49ms` from Osaka, JP
203.140.166.1	AS7511 SYNAPSE Co.,Ltd.	`11.23ms` from Osaka, JP
203.140.165.51	AS7511 SYNAPSE Co.,Ltd.	`11.81ms` from Osaka, JP

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
118.93.134.228	AS9500 One New Zealand Group Limited	`4.42ms` from Auckland, NZ
118.174.102.4	AS23969 TOT Public Company Limited	`10.18ms` from Bangkok, TH
190.30.170.228	AS7303 Telecom Argentina S.A.	`7.93ms` from Cordoba, AR
71.205.170.132	AS7922 Comcast Cable Communications, LLC	`2.87ms` from Denver, US
18.200.53.212	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
90.200.172.196	AS5607 Sky UK Limited	`5.00ms` from Erith, GB
103.142.240.68	AS139382 PT Multi Teknologi Telematika	`0.31ms` from Jakarta, ID
181.65.97.100	AS6147 INTEGRATEL PERÚ S.A.A.	`4.08ms` from Lima, PE
86.184.6.132	AS2856 British Telecommunications PLC	`4.13ms` from London, GB
167.89.51.36	AS11377 SendGrid, Inc.	`6.33ms` from Los Angeles, US
83.58.237.180	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.83ms` from Madrid, ES
186.48.206.228	AS6057 Administracion Nacional de Telecomunicaciones	`1.80ms` from Montevideo, UY
89.90.235.244	AS5410 Bouygues Telecom SA	`14.32ms` from Paris, FR
62.219.43.84	AS8551 Bezeq International Ltd.	`0.23ms` from Petaẖ Tiqva, IL
118.39.169.212	AS4766 Korea Telecom	`6.62ms` from Seoul, KR
121.165.251.36	AS4766 Korea Telecom	`1.20ms` from Seoul, KR
85.184.230.4	AS200596 Adyen N.V.	`0.21ms` from Sydney, AU
163.22.128.100	AS1659 Taiwan Academic Network (TANet) Information Center	`5.59ms` from Taipei, TW
126.200.173.164	AS17676 SoftBank Corp.	`2.85ms` from Tokyo, JP
145.126.105.132	AS1103 SURF B.V.	`6.31ms` from Amsterdam, NL
104.191.50.228	AS7018 AT&T Enterprises, LLC	`3.53ms` from Atlanta, US
139.133.6.20	AS786 Jisc Services Limited	`9.70ms` from Chester, GB
72.182.170.244	AS11427 Charter Communications Inc	`5.55ms` from Dallas, US
149.81.184.164	AS36351 IBM Cloud	`0.70ms` from Frankfurt am Main, DE
182.43.154.84	AS58519 Cloud Computing Corporation	`0.34ms` from Guiyang, CN

Traceroute

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

traceroute -a -n -q1 -f5 -m12 203.140.172.63

traceroute to 203.140.172.63 (203.140.172.63): 12 hops max, 52 byte packets

5 [] 193.114.162.178 234.721 ms

6 [AS8220] 148.109.6.170 234.98 ms

7 *

8 [AS9607] 124.147.24.61 251.129 ms

9 [AS7511] 202.208.178.197 251.365 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in London, GB

On February 7th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales