192.91.240.0/22

AS513 · CERN - European Organization for Nuclear Research

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Summary

Country	Switzerland
Domain	cern.ch
ASN	AS513
Registry	RIPE
ID	CERN-CNET27

WHOIS Details

inetnum:        192.91.240.0 - 192.91.240.255
netname:        CERN-CNET27
descr:          CERN EN
descr:          CERN, European Laboratory for Particle Physics
descr:          CH-1211 Geneva 23, Switzerland
country:        CH
admin-c:        CERN513
tech-c:         CERN513
org:            ORG-CEOf1-RIPE
status:         LEGACY
notify:         [email protected]
mnt-by:         CERN-MNT
mnt-routes:     CERN-MNT
mnt-domains:    CERN-MNT
created:        2002-05-10T12:19:46Z
last-modified:  2015-07-31T08:21:05Z
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:          192.91.240.0/22
descr:          CERN- European Laboratory for Particle Physics
descr:          CH-1211 Geneva 23 - Switzerland
origin:         AS513
mnt-by:         CERN-MNT
mnt-lower:      CERN-MNT
mnt-routes:     CERN-MNT
org:            ORG-CEOf1-RIPE
notify:         [email protected]
created:        1970-01-01T00:00:00Z
last-modified:  2015-08-12T12:30:58Z
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 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

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
66.151.33.70	AS57043 HOSTKEY B.V.	`0.35ms` from Amsterdam, NL
51.145.156.38	AS8075 Microsoft Corporation	`0.20ms` from Amsterdam, NL
57.153.126.134	AS8075 Microsoft Corporation	`0.19ms` from Amsterdam, NL
84.1.191.134	AS5483 Magyar Telekom Plc.	`4.70ms` from Budapest, HU
98.27.211.54	AS10796 Charter Communications Inc	`18.95ms` from Cleveland, US
72.48.177.118	AS7459 Grande Communications Networks, LLC	`3.01ms` from Dallas, US
47.238.132.198	AS45102 Alibaba (US) Technology Co., Ltd.	`0.76ms` from Hong Kong, HK
117.98.210.150	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.15ms` from Hyderabad, IN
64.71.218.22	AS393885 Haviland Telephone Company, Inc.	`10.21ms` from Kansas City, US
86.148.42.54	AS2856 British Telecommunications PLC	`4.10ms` from London, GB
81.154.131.134	AS2856 British Telecommunications PLC	`3.16ms` from London, GB
79.44.183.214	AS3269 Telecom Italia S.p.A.	`4.42ms` from Milan, IT
20.244.178.38	AS8075 Microsoft Corporation	`14.39ms` from Mumbai, IN
163.107.86.134	AS36351 IBM Cloud	`0.85ms` from Osasco, BR
5.135.28.102	AS16276 OVH SAS	`0.09ms` from Roubaix, FR
101.35.227.22	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.28ms` from Shanghai, CN
98.190.123.214	AS22773 Cox Communications Inc.	`7.47ms` from Tulsa, US
13.93.47.22	AS8075 Microsoft Corporation	`0.29ms` from Amsterdam, NL
49.49.22.230	AS45758 Triple T Broadband Public Company Limited	`10.07ms` from Bangkok, TH
190.157.41.22	AS10620 Telmex Colombia S.A.	`17.19ms` from Bogota, CO
71.73.94.182	AS10796 Charter Communications Inc	`8.61ms` from Cleveland, US
74.196.201.214	AS19108 Optimum	`14.88ms` from Dallas, US
47.162.252.214	AS5650 Frontier Communications of America, Inc.	`13.25ms` from Dallas, US
125.21.243.246	AS9498 BHARTI Airtel Ltd.	`0.90ms` from Delhi, IN
79.193.203.230	AS3320 Deutsche Telekom AG	`6.65ms` from Duesseldorf, DE

Traceroute

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

traceroute -a -n -q1 -m5 192.91.243.92

traceroute to 192.91.243.92 (192.91.243.92): 5 hops max, 52 byte packets

1 [AS15169] 108.170.226.38 12.712 ms

2 [AS513] 192.65.184.89 16.719 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Brussels, BE

On January 30th 2026

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