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Leiden University

Leiden University uses 47,776 IPv4 addresses in 11 ranges, and 1 IPv6 range, by the registry records IP Company reads.

universiteitleiden.nl·The Netherlands

47,776
IPv4 addresses
11
IPv4 ranges
1
IPv6 range
0
ASes it operates
1
country

About the company

Who it is, where it is registered and who owns it.

Description
Public university in the Netherlands
Founded
1575
Headquarters
Leiden
Employees
7,860

Who routes its space

The networks announcing its IPv4, by the addresses each announces.

  1. AS1103 SURF B.V.47,776 · 100.00%

Where its space is

Its IPv4 that IP Geolocation places, by country. A /24 counts for the company using most of it.

  1. The Netherlands47,872 · 100.00%

Networks it operates

The autonomous systems registered under its domain, by the IPv4 each announces anywhere.

No AS number is registered under its domain.

What the databases see

Addresses each address-keyed database holds in its IPv4, as a share of it, with the largest providers. A /24 counts for the company using most of it; counts overlap.

Speed tests

Speeds measured from its space in the last 90 days.

From M-Lab
71.9 Mbps
median download
49.9 Mbps
median upload
7
download tests
7
upload tests

Its address ranges

Its largest IPv4 ranges, then its IPv6 ones, as IP Company draws them, a CIDR a row, with the network announcing each.

RANGEIPV4ORIGIN
145.118.64.0/1816,384AS1103
145.138.192.0/198,192AS1103
145.138.224.0/221,024AS1103
145.107.160.0/198,192AS1103
145.118.224.0/198,192AS1103
145.118.200.0/212,048AS1103
145.118.192.0-145.118.199.1271,920AS1103
145.118.220.0/23512AS1103
145.118.222.0/24256AS1103
194.171.94.0/23512AS1103
194.171.106.0/24256AS1103
194.171.15.0/24256AS1103
145.118.199.192/2732AS1103
2001:610:2400::/40AS1103

Names it registers under

The holder names its registry records give, by the IPv4 under each.

  1. Leiden University38,560 · 80.71%
  2. Leiden University tbv EDUvpn9,216 · 19.29%
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