138.231.0.0/16

AS2269 · Renater

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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:    [email protected]
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:         [email protected]
admin-c:        JC8167-RIPE
tech-c:         PS12581-RIPE
tech-c:         SL6692-RIPE
tech-c:         AM37986-RIPE
abuse-c:        EA5341-RIPE
ref-nfy:        [email protected]
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:         [email protected]
nic-hdl:        AM37986-RIPE
mnt-by:         RENATER-MNT
remarks:        changed: [email protected] 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:         [email protected]
nic-hdl:        JC8167-RIPE
mnt-by:         RENATER-MNT
remarks:        changed: [email protected] 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:         [email protected]
nic-hdl:        PS12581-RIPE
mnt-by:         RENATER-MNT
remarks:        changed: [email protected] 20120106
remarks:        changed: [email protected] 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:         [email protected]
nic-hdl:        SL6692-RIPE
mnt-by:         RENATER-MNT
remarks:        changed: [email protected] 20120106
remarks:        changed: [email protected] 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: [email protected] 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: [email protected] 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
138.44.0.0/16	AS7575	Australian Academic and Research Network	65,536
138.100.0.0/16	AS766	Universidad Politecnica de Madrid	65,536
138.87.0.0/16	AS7386	Illinois State University	65,536
138.25.0.0/16	AS7575	University of Technology Sydney	65,536
138.80.0.0/16	AS58611	Charles Darwin University	65,536
138.50.0.0/16	AS721	Headquarters, USAISC	65,536
138.168.0.0/16	AS721	MARINE CORPS CYBERSPACE OPERATIONS GROUP	65,536
138.119.0.0/16	AS611	University of New Brunswick	65,536
138.163.0.0/16	AS637	Navy Network Information Center (NNIC)	65,536
138.163.0.0/16	AS665	Navy Network Information Center (NNIC)	65,536
138.233.0.0/16	AS56736	Vastra Gotalandsregionen	65,536
138.180.0.0/16	AS5839	Navy Network Information Center (NNIC)	65,536
138.180.0.0/16	AS721	Navy Network Information Center (NNIC)	65,536
138.73.0.0/16	AS611	Mount Allison University	65,536
138.110.0.0/16	AS396128	Mount Holyoke College	65,536
138.168.0.0/16	AS637	MARINE CORPS CYBERSPACE OPERATIONS GROUP	65,536
138.107.0.0/16	AS2497	OLYMPUS CORPORATION	65,536
138.115.0.0/16	AS270	National Aeronautics and Space Administration	65,536
138.63.0.0/16	AS1715	Centre Europeen de Recherches et Formation Avancee en Calcul Scientifique	65,536
138.78.0.0/16	AS396087	St. Mary's College of Maryland	65,536
138.67.0.0/16	AS36704	Colorado School of Mines	65,536
138.156.0.0/16	AS637	MARINE CORPS CYBERSPACE OPERATIONS GROUP	65,536
138.29.0.0/16	AS22742	Coast Guard Academy	65,536
138.13.0.0/16	AS56	Air Force Systems Networking	65,536
138.191.0.0/16	AS12511	Post CH AG	65,536
138.210.0.0/16	AS5778	CenturyLink Communications, LLC	65,536
138.246.0.0/16	AS12816	Ludwig-Maximilians-Universitaet Muenchen	65,536
138.178.0.0/16	AS721	Navy Network Information Center (NNIC)	65,536
138.220.0.0/16	AS10497	IBRD	65,536
138.23.0.0/16	AS6106	University of California, Riverside	65,536
138.210.0.0/16	AS11398	CenturyLink Communications, LLC	65,536
138.201.0.0/16	AS24940	Server Block	65,536
138.51.0.0/16	AS239	University of Toronto	65,536
138.254.0.0/16	AS243	L3Harris Technologies, Inc.	65,536
138.15.0.0/16	AS10753	NEC Laboratories America, Inc.	65,536
138.132.0.0/16	AS20746	Italtel SPA	65,536
138.62.0.0/16	AS25400	Norwegian State Railways	65,536
138.48.0.0/16	AS2611	Facultes Universitaires Notre Dame de la Paix	65,536
138.86.0.0/16	AS15295	University of Northern Colorado	65,536
138.92.0.0/16	AS11482	Canisius College	65,536
138.210.0.0/16	AS209	CenturyLink Communications, LLC	65,536
138.236.0.0/16	AS17234	Gustavus Adolphus College	65,536
138.225.0.0/16	AS20868	ABB Information Systems Ltd	65,536
138.26.0.0/16	AS3452	University of Alabama at Birmingham - University Computer Center	65,536
138.9.0.0/16	AS18663	University of the Pacific	65,536
138.22.0.0/16	AS1853	GeoSphere Austria	65,536
138.189.0.0/16	AS12511	Post CH AG	65,536
138.237.0.0/16	AS18791	Texas Christian University	65,536
138.232.0.0/16	AS1110	University of Innsbruck	65,536
138.4.0.0/16	AS766	Universidad Politecnica de Madrid	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
138.231.188.228	omid121.ir	1
138.231.81.11	lsv.fr	1
138.231.160.7	siolms.pro	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

108 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	`2.48ms` from Paris, FR
138.231.80.10	AS2269 Renater	`2.55ms` from Paris, FR
138.231.64.30	AS2269 Renater	`2.48ms` from Paris, FR
138.231.63.1	AS2269 Renater	`2.69ms` from Paris, FR
138.231.81.1	AS2269 Renater	`2.64ms` 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
76.98.92.144	AS7922 Comcast Cable Communications, LLC	`8.16ms` from Ashburn, US
78.98.75.64	AS6855 Slovak Telekom, a.s.	`5.13ms` from Bratislava, SK
197.60.81.192	AS8452 TE-AS	`5.54ms` from Cairo, EG
122.172.47.64	AS24560 Bharti Airtel Ltd., Telemedia Services	`14.56ms` from Chennai, IN
46.65.89.80	AS5607 Sky UK Limited	`2.61ms` from London, GB
138.73.174.160	AS611 NB-PEI Educational Computer Network	`15.63ms` from Montreal, CA
27.211.45.192	AS4837 CHINA UNICOM China169 Backbone	`6.55ms` from Qingdao, CN
20.80.146.64	AS8075 Microsoft Corporation	`0.28ms` from Quincy, US
187.101.23.224	AS27699 TELEFÔNICA BRASIL S.A	`2.19ms` from Sao Paulo, BR
70.44.23.48	AS3737 PenTeleData Inc.	`11.83ms` from Secaucus, US
188.123.144.240	AS35805 JSC "Silknet"	`1.49ms` from Tbilisi, GE
24.3.97.16	AS7922 Comcast Cable Communications, LLC	`10.00ms` from Ashburn, US
109.143.25.48	AS5432 Proximus NV	`19.49ms` from Brussels, BE
102.113.246.64	AS23889 Mauritius Telecom Ltd	`2.06ms` from Ebene, MU
49.82.144.240	AS4134 CHINANET-BACKBONE	`0.82ms` from Huai'an, CN
109.227.83.176	AS25133 LLC "McLaut-Invest"	`3.52ms` from Kyiv, UA
81.157.3.224	AS2856 British Telecommunications PLC	`5.26ms` from London, GB
82.36.170.112	AS5089 Virgin Media Limited	`5.07ms` from London, GB
84.175.37.224	AS3320 Deutsche Telekom AG	`2.51ms` from Nuernberg, DE
39.76.126.224	AS4837 CHINA UNICOM China169 Backbone	`7.41ms` from Qingdao, CN
13.64.142.176	AS8075 Microsoft Corporation	`0.60ms` from San Jose, US
52.144.47.192	AS36007 Kamatera, Inc.	`0.25ms` from Secaucus, US
61.152.89.208	AS4812 China Telecom (Group)	`6.28ms` from Shanghai, CN
118.211.58.208	AS7545 TPG Telecom Limited	`5.11ms` from Sydney, AU
95.35.177.48	AS1680 Cellcom Fixed Line Communication L.P	`1.32ms` from Tel Aviv, IL

Traceroute

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

traceroute -a -n -q1 -m5 138.231.144.233

traceroute to 138.231.144.233 (138.231.144.233): 5 hops max, 52 byte packets

1 [AS140627] 103.112.0.1 0.164 ms

2 [AS140627] 103.151.64.29 109.037 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Agana Heights Village, GU

On December 6th 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.

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