138.231.0.0/16

AS2269 · Renater

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

Summary

Country	France
Domain	ens-cachan.fr
ASN	AS2269
Registry	RIPE
ID	FR-ENS-CACHAN

WHOIS Details

inetnum:        138.231.0.0 - 138.231.255.255
netname:        FR-ENS-CACHAN
org:            ORG-ENSC1-RIPE
country:        FR
admin-c:        JC8167-RIPE
tech-c:         PS12581-RIPE
tech-c:         SL6692-RIPE
tech-c:         AM37986-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         RENATER-MNT
created:        2002-04-12T15:13:15Z
last-modified:  2020-11-16T17:43:55Z
source:         RIPE
sponsoring-org: ORG-RA8-RIPE
abuse-email:    abuse@ens-cachan.fr
abuse-c:        EA5341-RIPE
abuse-org:      ORG-RA8-RIPE

organisation:   ORG-ENSC1-RIPE
org-name:       Ecole Normale Superieure Paris-Saclay EPSCP
country:        FR
org-type:       OTHER
descr:          Ecole Normale Superieure de Cachan
address:        61 avenue du President Wilson
address:        94235 Cachan
e-mail:         reseau@ens-cachan.fr
admin-c:        JC8167-RIPE
tech-c:         PS12581-RIPE
tech-c:         SL6692-RIPE
tech-c:         AM37986-RIPE
abuse-c:        EA5341-RIPE
ref-nfy:        rensvp@renater.fr
mnt-ref:        RENATER-MNT
mnt-by:         RENATER-MNT
created:        2015-08-27T12:53:19Z
last-modified:  2024-05-23T13:01:30Z
source:         RIPE

person:         Aurelien MINET
address:        Ecole Normale Superieure
address:        61 avenue du President Wilson
address:        94235 Cachan Cedex
address:        FRANCE
phone:          +33 1 47 40 74 24
e-mail:         reseau@ens-cachan.fr
nic-hdl:        AM37986-RIPE
mnt-by:         RENATER-MNT
remarks:        changed: rensvp@renater.fr 20150827
created:        2015-08-27T07:58:03Z
last-modified:  2015-08-27T07:58:03Z
source:         RIPE

person:         Jamel CHAABANE
address:        Ecole Normale Superieure
address:        61 av du President Wilson
address:        94235 Cachan
address:        FRANCE
phone:          +33 1 47 40 74 24
e-mail:         reseau@ens-cachan.fr
nic-hdl:        JC8167-RIPE
mnt-by:         RENATER-MNT
remarks:        changed: rensvp@renater.fr 20150827
created:        2015-08-27T07:58:03Z
last-modified:  2015-08-27T07:58:03Z
source:         RIPE

person:         Pascal SOULLARD
address:        Ecole Normale Superieure
address:        61 av du President Wilson
address:        94235 Cachan
address:        FRANCE
phone:          +33 1 47 40 74 24
e-mail:         reseau@ens-cachan.fr
nic-hdl:        PS12581-RIPE
mnt-by:         RENATER-MNT
remarks:        changed: rensvp@renater.fr 20120106
remarks:        changed: rensvp@renater.fr 20150827
created:        2012-01-06T08:36:00Z
last-modified:  2015-08-27T07:58:03Z
source:         RIPE

person:         Sabrina LOUISON-FRANCOIS
address:        Ecole Normale Superieure
address:        61 avenue du President Wilson
address:        94235 Cachan Cedex
address:        FRANCE
phone:          +33 1 47 40 74 24
e-mail:         reseau@ens-cachan.fr
nic-hdl:        SL6692-RIPE
mnt-by:         RENATER-MNT
remarks:        changed: rensvp@renater.fr 20120106
remarks:        changed: rensvp@renater.fr 20150827
created:        2012-01-06T08:36:00Z
last-modified:  2015-08-27T07:58:03Z
source:         RIPE

route:          138.231.0.0/16
descr:          FR-ENS-CACHAN
origin:         AS2200
mnt-by:         RENATER-MNT
remarks:        changed: RenSVP@Renater.fr 20200916
created:        2020-09-16T06:50:11Z
last-modified:  2020-09-16T06:50:11Z
source:         RIPE

route:          138.231.0.0/16
descr:          FR-ENS-CACHAN
origin:         AS2269
mnt-by:         RENATER-MNT
remarks:        changed: RenSVP@Renater.fr 20200916
created:        2020-09-16T06:50:11Z
last-modified:  2020-09-16T06:50:11Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 138.0.0.0/8

Range	ASN	Company	Num of IPs
138.101.0.0/16	AS9593	Nikkei Inc.	65,536
138.192.0.0/16	AS21727	Hamline University	65,536
138.78.0.0/16	AS396087	St. Mary's College of Maryland	65,536
138.14.0.0/16	AS8434	Saab AB	65,536
138.64.0.0/16	AS4685	ASAHI Net,Inc.	65,536
138.110.0.0/16	AS396128	Mount Holyoke College	65,536
138.6.0.0/16	AS38956	Uppsala local government	65,536
138.26.0.0/16	AS3452	University of Alabama at Birmingham - University Computer Center	65,536
138.62.0.0/16	AS25400	Norwegian State Railways	65,536
138.123.0.0/16	AS46887	Delaware Technical Community College	65,536
138.210.0.0/16	AS2379	CenturyLink Communications, LLC	65,536
138.210.0.0/16	AS22561	CenturyLink Communications, LLC	65,536
138.115.0.0/16	AS270	National Aeronautics and Space Administration	65,536
138.243.0.0/16	AS23779	NTT Communications Corporation	65,536
138.86.0.0/16	AS15295	University of Northern Colorado	65,536
138.237.0.0/16	AS18791	Texas Christian University	65,536
138.15.0.0/16	AS10753	NEC Laboratories America, Inc.	65,536
138.116.0.0/16	AS33004	SUNY Empire State University	65,536
138.236.0.0/16	AS17234	Gustavus Adolphus College	65,536
138.66.0.0/16	AS20981	Prov. Casamassima Km.3	65,536
138.201.0.0/16	AS24940	Server Block	65,536
138.50.0.0/16	AS367	Headquarters, USAISC	65,536
138.216.0.0/16	AS214692	Tuve-palvelut	65,536
138.102.0.0/16	AS2200	INRAE	65,536
138.210.0.0/16	AS22186	CenturyLink Communications, LLC	65,536
138.195.0.0/16	AS2200	CENTRALESUPELEC	65,536
138.220.0.0/16	AS10497	IBRD	65,536
138.9.0.0/16	AS18663	University of the Pacific	65,536
138.22.0.0/16	AS1853	GeoSphere Austria	65,536
138.29.0.0/16	AS22742	Coast Guard Academy	65,536
138.210.0.0/16	AS11398	CenturyLink Communications, LLC	65,536
138.210.0.0/16	AS14921	CenturyLink Communications, LLC	65,536
138.130.0.0/16	AS1221	Telstra Limited	65,536
138.217.0.0/16	AS1221	Telstra Limited	65,536
138.189.0.0/16	AS12511	Post CH AG	65,536
138.191.0.0/16	AS12511	Post CH AG	65,536
138.246.0.0/16	AS12816	Ludwig-Maximilians-Universitaet Muenchen	65,536
138.106.0.0/16	AS202116	SCANIA CV AB	65,536
138.92.0.0/16	AS11482	Canisius College	65,536
138.41.0.0/16	AS137	DIR-GARR - Roma	65,536
138.27.0.0/16	AS1540	Headquarters, USAISC	65,536
138.210.0.0/16	AS209	CenturyLink Communications, LLC	65,536
138.63.0.0/16	AS1715	Centre Europeen de Recherches et Formation Avancee en Calcul Scientifique	65,536
138.50.0.0/16	AS1565	Headquarters, USAISC	65,536
138.132.0.0/16	AS20746	Italtel SPA	65,536
138.254.0.0/16	AS243	L3Harris Technologies, Inc.	65,536
138.232.0.0/16	AS1110	University of Innsbruck	65,536
138.195.0.0/16	AS212424	CENTRALESUPELEC	65,536
138.17.0.0/16	AS749	DoD Network Information Center	65,536
138.18.0.0/16	AS749	DoD Network Information Center	65,536

Hosted domains

There are 5 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
138.231.176.51	ens-paris-saclay.fr	2
138.231.160.7	siolms.pro	1
138.231.188.228	omid121.ir	1
138.231.81.11	lsv.fr	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

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

IP Address	ASN	Details
138.231.32.53	AS2269 Renater	`2.70ms` from Paris, FR
138.231.81.1	AS2269 Renater	`2.60ms` from Paris, FR
138.231.64.14	AS2269 Renater	`2.47ms` from Paris, FR
138.231.80.82	AS2269 Renater	`2.49ms` from Paris, FR
138.231.63.2	AS2269 Renater	`2.57ms` from Paris, FR

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
69.1.200.0	AS62887 WhiteSky Communications, LLC.	`0.38ms` from Atlanta, US
209.60.134.32	AS7029 Windstream Communications LLC	`0.41ms` from Atlanta, US
111.30.185.224	AS9808 China Mobile Communications Group Co., Ltd.	`3.88ms` from Beijing, CN
34.121.115.0	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
46.151.26.112	AS216071 SERVERS TECH FZCO	`0.22ms` from Dronten, NL
182.182.53.208	AS17557 Pakistan Telecommunication Company Limited	`7.28ms` from Karachi, PK
39.129.113.144	AS9808 China Mobile Communications Group Co., Ltd.	`4.29ms` from Kunming, CN
75.84.111.0	AS20001 Charter Communications Inc	`7.62ms` from Los Angeles, US
95.86.246.48	AS12389 PJSC Rostelecom	`11.25ms` from Moscow, RU
46.181.80.208	AS39927 E-Light-Telecom Ltd.	`4.61ms` from Novosibirsk, RU
177.107.176.0	AS262476 PROVEDOR BRCENTRAL.NET LTDA	`11.23ms` from Osasco, BR
72.155.105.128	AS8075 Microsoft Corporation	`0.33ms` from Seoul, KR
58.121.102.144	AS9318 SK Broadband Co Ltd	`3.08ms` from Seoul, KR
112.199.253.16	AS4773 MobileOne Ltd. Mobile/Internet Service Provider Singapore	`2.32ms` from Singapore, SG
39.181.200.0	AS56041 China Mobile communications corporation	`10.15ms` from Suzhou, CN
24.2.235.224	AS7922 Comcast Cable Communications, LLC	`10.56ms` from Boston, US
104.36.58.32	AS30455 HostVenom LLC	`1.02ms` from Chicago, US
97.118.5.160	AS209 CenturyLink Communications, LLC	`1.72ms` from Denver, US
141.216.83.160	AS394769 University of Michigan - Flint	`2.27ms` from Detroit, US
82.32.178.208	AS5089 Virgin Media Limited	`5.42ms` from London, GB
91.18.110.176	AS3320 Deutsche Telekom AG	`7.76ms` from Nuernberg, DE
174.135.241.0	AS33363 Charter Communications, Inc	`9.70ms` from Orlando, US
14.10.32.64	AS2516 KDDI CORPORATION	`2.74ms` from Osaka, JP
88.121.38.48	AS12322 Free SAS	`5.17ms` from Paris, FR
179.106.24.16	AS262595 OnNet Telecomunicacoes LTDA	`3.47ms` from Uberlandia, BR

Traceroute

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

traceroute -a -n -q1 -m10 138.231.4.93

traceroute to 138.231.4.93 (138.231.4.93): 10 hops max, 52 byte packets

1 [AS15169] 66.249.95.132 227.21 ms

2 *

3 [AS2200] 193.51.180.43 248.468 ms

4 [AS2200] 193.51.183.29 251.401 ms

5 [AS2200] 193.55.22.0 246.008 ms

6 [AS2200] 193.55.22.74 255.187 ms

7 [AS2200] 193.55.20.97 262.39 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Chang-hua, TW

On December 14th 2025

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