145.144.0.0/12
AS1103 · SURF B.V.
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Country | Netherlands |
Domain | surfnet.nl |
ASN | AS1103 |
Registry | ripe |
Hosted IPs | 1,048,576 |
ID | SURFNET-BLOCKB140 |
WHOIS Details
inetnum: 145.144.0.0 - 145.144.255.255 netname: SURFNET-BLOCKB140 org: ORG-Sb3-RIPE descr: SURFnet bv descr: P.O. Box 19035 descr: 3501 DA Utrecht country: NL admin-c: SNS1-RIPE tech-c: SNS1-RIPE status: LEGACY mnt-by: RIPE-NCC-LEGACY-MNT remarks: ------------------------------------------------- remarks: Use cert@surfnet.nl to report security incidents. remarks: See http://cert.surfnet.nl/ for more information. remarks: ------------------------------------------------- mnt-by: SN-LIR-MNT mnt-lower: SN-LIR-MNT mnt-routes: SN-LIR-MNT mnt-irt: irt-SURFcert notify: lir@surfnet.nl created: 2003-09-09T09:34:24Z last-modified: 2017-06-12T12:10:24Z source: RIPE abuse-email: cert@surfcert.nl abuse-c: SNS1-RIPE abuse-org: ORG-Sb3-RIPE organisation: ORG-Sb3-RIPE org-name: SURF B.V. country: NL org-type: LIR address: P.O. Box 19035 address: 3501 DA address: Utrecht address: NETHERLANDS phone: +31887873000 e-mail: lir@surf.nl admin-c: HT3384-RIPE admin-c: MK512-RIPE admin-c: SNS1-RIPE admin-c: WB311-RIPE admin-c: NO17-RIPE admin-c: RS957-RIPE admin-c: JO5863-RIPE admin-c: MM57501-RIPE abuse-c: SNS1-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: SN-LIR-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: SN-LIR-MNT created: 2004-04-17T11:43:29Z last-modified: 2023-02-21T13:35:38Z source: RIPE role: SURF Network Maintainer address: Kantoren Hoog Overborch (Hoog Catharijne) address: Moreelsepark 48, 3511 EP Utrecht address: Postbus 19035, 3501 DA Utrecht phone: +31 88 7873000 admin-c: WB311-RIPE tech-c: NO17-RIPE tech-c: WB311-RIPE tech-c: MK512-RIPE tech-c: JO5863-RIPE tech-c: MM57501-RIPE nic-hdl: SNS1-RIPE abuse-mailbox: cert@surfcert.nl mnt-by: AS1103-MNT created: 2002-07-09T10:06:06Z last-modified: 2024-05-23T04:00:29Z source: RIPE e-mail: noc@surf.nl route: 145.144.0.0/12 descr: SURFnet CIDR Block II c origin: AS1103 mnt-by: AS1103-MNT mnt-lower: AS1103-MNT mnt-routes: AS1103-MNT created: 2018-07-05T14:42:26Z last-modified: 2018-07-05T14:42:26Z source: RIPE
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
IP address subranges within this IP range
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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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