138.250.0.0/15
AS786 · Jisc Services Limited
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| Country |
United Kingdom
|
| Domain | cranfield.ac.uk |
| ASN | AS786 |
| Registry | ripe |
| Hosted IPs | 131,072 |
| ID | CRANFIELD |
WHOIS Details
inetnum: 138.250.0.0 - 138.250.255.255 netname: CRANFIELD descr: Cranfield University country: GB admin-c: JH28726-RIPE tech-c: MA19568-RIPE tech-c: RK3685-RIPE status: LEGACY mnt-by: JANET-HOSTMASTER mnt-domains: JANET-HOSTMASTER created: 1970-01-01T00:00:00Z last-modified: 2019-12-04T13:02:52Z source: RIPE person: Jonathan Haynes address: IT Department address: Building 63 address: Cranfield University address: Cranfield address: Bedford MK43 0AL phone: +44 1234 754205 e-mail: j.haynes@cranfield.ac.uk nic-hdl: JH28726-RIPE mnt-by: JIPS-NOSC mnt-by: JANET-HOSTMASTER created: 2018-03-02T14:20:41Z last-modified: 2018-03-02T14:20:41Z source: RIPE person: Manish Amriwala address: IT Department address: Building 63 address: Cranfield University address: Cranfield address: Bedford MK43 0AL phone: +44 234 754207 e-mail: m.amriwala@cranfield.ac.uk mnt-by: JANET-HOSTMASTER nic-hdl: MA19568-RIPE created: 2016-09-22T08:53:17Z last-modified: 2016-10-14T08:28:54Z source: RIPE person: Robert Kerr address: IT Department address: Building 63 address: Cranfield University address: Cranfield address: Bedford MK43 0AL phone: +44 1234 752925 e-mail: r.kerr@cranfield.ac.uk nic-hdl: RK3685-RIPE mnt-by: RK3685-MNT created: 2009-03-24T14:18:44Z last-modified: 2009-08-27T12:49:44Z source: RIPE route: 138.250.0.0/15 descr: JANET Aggregated Route descr: JANET(UK) Network Operations Centre descr: 100 Gray's Inn Road descr: London WC1X 8AL descr: United Kingdom origin: AS786 mnt-by: JIPS-NOSC created: 1970-01-01T00:00:00Z last-modified: 2007-07-06T16:04:26Z source: RIPE
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IP address subranges within this IP range
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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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