192.91.244.0/23

AS513 · CERN - European Organization for Nuclear Research

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Summary

Country	Switzerland
Domain	cern.ch
ASN	AS513
Registry	RIPE
ID	CERN-CNET244

WHOIS Details

inetnum:        192.91.244.0 - 192.91.244.255
netname:        CERN-CNET244
descr:          CERN - European Organization for Nuclear Research
descr:          CH-1211 Geneva 23, Switzerland
country:        CH
admin-c:        CERN513
tech-c:         CERN513
status:         LEGACY
notify:         [email protected]
org:            ORG-CEOf1-RIPE
mnt-by:         CERN-MNT
mnt-routes:     CERN-MNT
mnt-domains:    CERN-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2015-07-31T08:21:06Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        CERN513
abuse-org:      ORG-CEOf1-RIPE

organisation:   ORG-CEOf1-RIPE
org-name:       CERN - European Organization for Nuclear Research
country:        CH
org-type:       LIR
address:        CERN
address:        CH-1211
address:        Geneva 23
address:        SWITZERLAND
phone:          +41 22 76 72613
e-mail:         [email protected]
admin-c:        EM1969
admin-c:        DGR6-RIPE
tech-c:         CERN513
abuse-c:        CERN513
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CERN-MNT
notify:         [email protected]
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CERN-MNT
created:        2004-04-17T11:02:00Z
last-modified:  2021-06-29T07:00:23Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        CERN513
abuse-org:      undefined

role:           CERN NOC
address:        CERN - European Organization for Nuclear Research
address:        Network Operation Center
address:        IT Department - CS group
address:        CH-1211 Geneva 23 - Switzerland
phone:          +41227675011
fax-no:         +41227677155
e-mail:         [email protected]
remarks:        trouble: ------------------------------------------
remarks:        trouble: Operational issues: <[email protected]>
remarks:        trouble: Peering issues: <[email protected]>
remarks:        trouble: CIXP issues: <[email protected]>
remarks:        trouble: Abuse and SPAM: <[email protected]>
remarks:        trouble: ------------------------------------------
admin-c:        EM1969
admin-c:        DGR6-RIPE
tech-c:         EM1969
tech-c:         DGR6-RIPE
nic-hdl:        CERN513
mnt-by:         CERN-MNT
notify:         [email protected]
abuse-mailbox:  [email protected]
created:        2015-04-14T08:36:32Z
last-modified:  2025-09-08T15:31:38Z
source:         RIPE

route:          192.91.244.0/23
descr:          CERN- European Laboratory for Particle Physics
descr:          CH-1211 Geneva 23, Switzerland
origin:         AS513
org:            ORG-CEOf1-RIPE
mnt-by:         CERN-MNT
mnt-lower:      CERN-MNT
mnt-routes:     CERN-MNT
notify:         [email protected]
created:        1970-01-01T00:00:00Z
last-modified:  2015-08-12T12:31:38Z
source:         RIPE

organisation:   ORG-CEOf1-RIPE
org-name:       CERN - European Organization for Nuclear Research
country:        CH
org-type:       LIR
address:        CERN
address:        CH-1211
address:        Geneva 23
address:        SWITZERLAND
phone:          +41 22 76 72613
e-mail:         [email protected]
admin-c:        EM1969
admin-c:        DGR6-RIPE
tech-c:         CERN513
abuse-c:        CERN513
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CERN-MNT
notify:         [email protected]
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CERN-MNT
created:        2004-04-17T11:02:00Z
last-modified:  2021-06-29T07:00:23Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        CERN513
abuse-org:      undefined

Nearby Ranges

BGP prefixes that overlap with 192.91.0.0/16

Range	ASN	Company	Num of IPs
192.91.236.0/22	AS513	CERN - European Organization for Nuclear Research	1,024
192.91.60.0/24	AS12801	Texas Instruments Incorporated	256
192.91.62.0/24	AS12801	Texas Instruments Incorporated	256
192.91.64.0/24	AS12801	Texas Instruments Incorporated	256
192.91.108.0/24	AS133462	Texas Instruments Incorporated	256
192.91.109.0/24	AS133462	Texas Instruments Incorporated	256
192.91.139.0/24	AS13807	Great Plains Communications LLC	256
192.91.0.0/24	AS1437	Visonex LLC	256
192.91.137.0/24	AS1516	Headquarters, USAISC	256
192.91.191.0/24	AS15248	Microsoft Azure for Operators	256
192.91.177.0/24	AS15525	MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	256
192.91.101.0/24	AS161	Texas Instruments Incorporated	256
192.91.66.0/24	AS161	Texas Instruments Incorporated	256
192.91.75.0/24	AS161	Texas Instruments Incorporated	256
192.91.234.0/24	AS17109	Calitech	256
192.91.249.0/24	AS17298	ROEHL TRANSPORT, INC.	256
192.91.178.0/24	AS174	CARNEGIE INSTITUTION FOR SCIENCE	256
192.91.254.0/24	AS268433	MGCLOUD SOLUCOES EM TIC LTDA - ME	256
192.91.63.0/24	AS29057	Texas Instruments Incorporated	256
192.91.253.0/24	AS3356	University of Dallas	256
192.91.184.0/24	AS3424	National Nuclear Security Administration, Kansas City Plant	256
192.91.200.0/24	AS36974	MTN COTE D'IVOIRE S.A	256
192.91.198.0/24	AS3783	Allegheny Intermediate Unit	256
192.91.204.0/24	AS393862	Children's Hospital & Medical Center	256
192.91.246.0/24	AS513	CERN - European Organization for Nuclear Research	256
192.91.214.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.215.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.216.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.217.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.218.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.219.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.220.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.221.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.222.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.223.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.224.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.225.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.226.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.227.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.228.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.229.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.230.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.231.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.232.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.233.0/24	AS56736	Vastra Gotalandsregionen	256
192.91.199.0/24	AS56739	Temporary Allocations	256
192.91.144.0/24	AS62830	RiotGames	256
192.91.255.0/24	AS63424	ADVANTAGE DENTAL CLINICS	256
192.91.205.0/24	AS749	Air Force Systems Networking	256
192.91.250.0/24	AS749	DoD Network Information Center	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
192.91.244.229	frenchmobility.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

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

IP Address	ASN	Details
192.91.244.77	AS513 CERN - European Organization for Nuclear Research	`0.34ms` from Geneve, CH
192.91.245.154	AS513 CERN - European Organization for Nuclear Research	`0.33ms` from Geneve, CH

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
149.143.97.71	AS15435 DELTA Fiber Nederland B.V.	`3.58ms` from Amsterdam, NL
72.49.237.247	AS6181 Cincinnati Bell Telephone Company LLC	`2.17ms` from Cincinnati, US
54.170.159.247	AS16509 Amazon.com, Inc.	`0.16ms` from Dublin, IE
8.136.160.151	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.09ms` from Hangzhou, CN
103.153.162.7	AS140944 ChangXin Group China Corporation Limited	`0.71ms` from Hong Kong, HK
88.17.205.135	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.25ms` from Madrid, ES
71.105.227.7	AS701 Verizon Business	`3.27ms` from New York City, US
174.57.119.135	AS7922 Comcast Cable Communications, LLC	`4.87ms` from New York City, US
87.88.26.119	AS5410 Bouygues Telecom SA	`3.22ms` from Saint-Denis, FR
59.23.229.39	AS152232 kt cloud Co., Ltd	`6.63ms` from Seoul, KR
121.136.139.119	AS4766 Korea Telecom	`2.01ms` from Seoul, KR
220.97.184.119	AS4713 NTT DOCOMO BUSINESS,Inc.	`15.57ms` from Tokyo, JP
27.138.11.119	AS9824 JCOM Co., Ltd.	`7.94ms` from Tokyo, JP
27.28.46.119	AS4134 CHINANET-BACKBONE	`6.18ms` from Wuhan, CN
195.210.47.23	AS48716 PS Internet Company LLP	`0.64ms` from Almaty, KZ
41.203.8.23	AS37153 Xneelo (Pty) Ltd	`1.72ms` from Cape Town, ZA
190.75.216.199	AS8048 CANTV Servicios, Venezuela	`13.74ms` from Caracas, VE
167.142.236.135	AS5056 Aureon Network Services	`11.45ms` from Chicago, US
92.34.193.231	AS8434 Telenor Sverige AB	`6.78ms` from Copenhagen, DK
34.9.181.231	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
141.216.72.71	AS394769 University of Michigan - Flint	`2.14ms` from Detroit, US
190.103.119.23	AS27855 AXESAT S.A	`1.50ms` from Lima, PE
80.28.193.39	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.41ms` from Madrid, ES
176.206.239.119	AS1267 WIND TRE S.P.A.	`7.92ms` from Milan, IT
109.204.140.7	AS213269 Oulun Seudun Sahko Kuitu Oy	`11.78ms` from Oulu, FI

Traceroute

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

traceroute -a -n -q1 192.91.245.193

traceroute to 192.91.245.193 (192.91.245.193): 64 hops max, 52 byte packets

1 [AS15169] 108.170.226.38 249.403 ms

2 [AS513] 192.65.184.89 192.365 ms

3 [AS513] 192.91.245.193 193.327 ms

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On January 30th 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.

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