194.12.128.0/18
AS513 · CERN - European Organization for Nuclear Research
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| Country |
Switzerland
|
| Domain | cern.ch |
| ASN | AS513 |
| Registry | ripe |
| Hosted IPs | 16,384 |
| ID | CERN-BLK1 |
WHOIS Details
inetnum: 194.12.128.0 - 194.12.191.255 netname: CERN-BLK1 org: ORG-CEOf1-RIPE descr: CH-1211 Geneva 23, Switzerland country: CH admin-c: CERN513 tech-c: CERN513 mnt-by: RIPE-NCC-END-MNT mnt-by: CERN-MNT mnt-routes: CERN-MNT mnt-domains: CERN-MNT notify: extip@cern.ch status: ASSIGNED PI created: 2004-05-04T14:07:59Z last-modified: 2016-04-14T09:51:26Z source: RIPE abuse-email: abuse@cern.ch 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: extip@cern.ch admin-c: EM1969 admin-c: DGR6-RIPE tech-c: CERN513 abuse-c: CERN513 mnt-ref: RIPE-NCC-HM-MNT mnt-ref: CERN-MNT notify: extip@cern.ch 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 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: noc@cern.ch remarks: trouble: ------------------------------------------ remarks: trouble: Operational issues: <noc@cern.ch> remarks: trouble: Peering issues: <extip@cern.ch> remarks: trouble: CIXP issues: <cixp.support@cern.ch> remarks: trouble: Abuse and SPAM: <abuse@cern.ch> remarks: trouble: ------------------------------------------ admin-c: EM1969 admin-c: JS16747-RIPE tech-c: EM1969 tech-c: DGR6-RIPE nic-hdl: CERN513 mnt-by: CERN-MNT notify: extip@cern.ch abuse-mailbox: abuse@cern.ch created: 2015-04-14T08:36:32Z last-modified: 2016-06-22T07:07:39Z source: RIPE route: 194.12.128.0/18 descr: CERN-BLK1 origin: AS513 mnt-by: CERN-MNT mnt-lower: CERN-MNT mnt-routes: CERN-MNT org: ORG-CEOf1-RIPE notify: extip@cern.ch created: 2004-05-17T12:05:41Z last-modified: 2015-08-12T12:33:35Z 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: extip@cern.ch admin-c: EM1969 admin-c: DGR6-RIPE tech-c: CERN513 abuse-c: CERN513 mnt-ref: RIPE-NCC-HM-MNT mnt-ref: CERN-MNT notify: extip@cern.ch 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
Hosted domains
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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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