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  2. 145.0.0.0/8
  3. AS1103  | 145.124.0.0/15

145.124.0.0/15

AS1103  ·  SURF B.V.

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Summary

Country Netherlands
Domain astron.nl
ASN AS1103
Registry RIPE
ID ASTRON-NET

WHOIS Details

inetnum:        145.124.0.0 - 145.124.255.255
netname:        ASTRON-NET
descr:          Stichting ASTRON
country:        NL
admin-c:        ARC129-RIPE
tech-c:         ARC129-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
mnt-by:         SURF-AUTO-MNT
created:        2003-09-09T09:34:08Z
last-modified:  2025-10-02T17:29:21Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

role:           Astron Ripe Contact
address:        P.O. Box 2, NL-7990 AA, Dwingeloo
address:        the Netherlands
e-mail:         [email protected]
nic-hdl:        ARC129-RIPE
mnt-by:         SN-LIR-MNT
created:        2023-04-19T15:03:21Z
last-modified:  2023-05-09T15:06:22Z
source:         RIPE

route:          145.124.0.0/15
origin:         AS1103
descr:          145.124.0.0/15 aggregate
mnt-by:         AS1103-MNT
notify:         [email protected]
created:        2012-04-03T13:39:19Z
last-modified:  2019-03-21T09:01:44Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 145.0.0.0/8

Range ASN Company Num of IPs
145.132.0.0/15 AS8075 Microsoft Limited 131,072
145.82.0.0/16 AS25019 Saudi Telecom Company JSC 65,536
145.95.0.0/16 AS1103 SURF B.V. 65,536
145.13.0.0/16 AS21286 F&IT RIM - OsirisNG, Zoetermeer 65,536
145.243.0.0/16 AS200757 Axel Springer SE 65,536
145.238.0.0/16 AS2200 Observatoire de Paris 65,536
145.220.0.0/16 AS1101 SURF B.V. 65,536
145.236.0.0/16 AS1902 Budapest 65,536
145.55.0.0/16 AS16509 A100 ROW Inc 65,536
145.244.0.0/16 AS210543 Steiermaerkische Krankenanstalten GesmbH 65,536
145.86.0.0/16 AS15830 Medisch Spectrum Twente 65,536
145.126.0.0/16 AS1103 SURFnet bv 65,536
145.108.0.0/16 AS1103 Vrije Universiteit Amsterdam 65,536
145.239.0.0/16 AS16276 OVH SAS 65,536
145.232.0.0/16 AS15675 Etat de Vaud, CCT 65,536
145.230.0.0/16 AS12663 Vodafone Group Services GmbH 65,536
145.17.0.0/16 AS16509 A100 ROW Inc 65,536
145.243.0.0/16 AS16509 Axel Springer SE 65,536
145.221.0.0/16 AS15625 ING Bank NV 65,536
145.4.0.0/16 AS1136 PGGM N.V. 65,536
145.68.0.0/16 AS1136 ISC-NL 65,536
145.234.0.0/16 AS206567 Tamedia AG 65,536
145.0.0.0/16 AS1103 SURFnet bv 65,536
145.94.0.0/16 AS1128 Delft University of Technology Network 65,536
145.52.0.0/16 AS1103 Haagse Hogeschool 65,536
145.76.0.0/16 AS1103 Hogeschool Saxion 65,536
145.81.0.0/16 AS1103 SURFnet bv 65,536
145.85.0.0/16 AS1103 Fontys Hogescholen 65,536
145.9.0.0/16 AS1103 Deltares 65,536
145.91.0.0/16 AS1103 Hogeschool Zuyd 65,536
145.245.0.0/16 AS2047 Hoffmann - La Roche Ltd. 65,536
145.19.0.0/16 AS1103 Hogeschool Zeeland Network 65,536
145.20.0.0/16 AS1103 Open Universiteit 65,536
145.7.0.0/16 AS1136 KPN B.V. 65,536
145.23.0.0/16 AS1103 Koninklijk Nederlands Meteorologisch Instituut 65,536
145.251.0.0/16 AS12552 Systembolaget AB 65,536
145.24.0.0/16 AS1103 Hogeschool Rotterdam & Omstreken 65,536
145.119.0.0/16 AS1136 ISC-NL 65,536
145.33.0.0/16 AS1103 Hanzehogeschool Groningen 65,536
145.103.0.0/16 AS1103 Stichting GlasLokaal 65,536
145.37.0.0/16 AS1103 Hanzehogeschool Groningen 65,536
145.18.0.0/16 AS1124 Universiteit van Amsterdam 65,536
145.41.0.0/16 AS1103 SURF B.V. 65,536
145.110.0.0/16 AS1104 NIKHEF 65,536
145.44.0.0/16 AS1103 Christelijke Hogeschool Windesheim 65,536
145.53.0.0/16 AS1136 KPN B.V. 65,536
145.5.0.0/16 AS1103 Erasmus Universiteit Rotterdam 65,536
145.117.0.0/16 AS1103 Academic Medical Centre 65,536
145.51.0.0/16 AS1103 Hogeschool Rotterdam & Omstreken 65,536
145.222.0.0/16 AS21286 KPN B.V. 65,536

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
145.124.51.226 astron.wiki 1
145.125.47.89 beachpublicationignorance.christmas 1

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
Read more

Pingable IPs

737 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
145.125.206.1 AS1103 SURF B.V. 0.55ms from Amsterdam, NL
145.124.120.1 AS1103 SURF B.V. 3.04ms from Amsterdam, NL
145.124.139.191 AS1103 SURF B.V. 3.86ms from Amsterdam, NL
145.124.51.226 AS1103 SURF B.V. 2.73ms from Amsterdam, NL
145.125.193.29 AS1103 SURF B.V. 0.44ms from Amsterdam, NL
145.124.128.223 AS1103 SURF B.V. 3.92ms from Amsterdam, NL
145.124.143.1 AS1103 SURF B.V. 3.88ms from Amsterdam, NL
145.125.204.44 AS1103 SURF B.V. 0.53ms from Amsterdam, NL
145.124.137.255 AS1103 SURF B.V. 3.90ms from Amsterdam, NL
145.125.199.1 AS1103 SURF B.V. 0.52ms from Amsterdam, NL
145.124.133.127 AS1103 SURF B.V. 3.87ms from Amsterdam, NL
145.124.130.127 AS1103 SURF B.V. 3.89ms from Amsterdam, NL
145.124.226.6 AS1103 SURF B.V. 3.71ms from Amsterdam, NL
145.125.197.100 AS1103 SURF B.V. 0.49ms from Amsterdam, NL
145.124.152.127 AS1103 SURF B.V. 3.90ms from Amsterdam, NL
145.124.222.8 AS1103 SURF B.V. 3.68ms from Amsterdam, NL
145.124.144.95 AS1103 SURF B.V. 3.90ms from Amsterdam, NL
145.124.20.1 AS1103 SURF B.V. 3.36ms from Amsterdam, NL
145.124.132.1 AS1103 SURF B.V. 3.90ms from Amsterdam, NL
145.124.153.63 AS1103 SURF B.V. 3.87ms from Amsterdam, NL
145.124.140.95 AS1103 SURF B.V. 3.88ms from Amsterdam, NL
145.125.207.17 AS1103 SURF B.V. 0.51ms from Amsterdam, NL
145.124.141.65 AS1103 SURF B.V. 3.91ms from Amsterdam, NL
145.124.145.65 AS1103 SURF B.V. 3.93ms from Amsterdam, NL
145.125.203.17 AS1103 SURF B.V. 0.52ms from Amsterdam, NL

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
218.68.168.255 AS4837 CHINA UNICOM China169 Backbone 5.42ms from Beijing, CN
94.44.81.175 AS21334 One Hungary Ltd. 13.35ms from Budapest, HU
102.119.31.47 AS23889 Mauritius Telecom Ltd 3.38ms from Ebene, MU
37.201.51.15 AS3209 Vodafone GmbH 9.16ms from Frankfurt am Main, DE
27.124.44.239 AS152194 CTG Server Limited 0.47ms from Hong Kong, HK
130.94.55.255 AS154177 LIGHT NODE LIMITED 0.06ms from Jeddah, SA
154.205.221.79 AS8796 FASTNET DATA INC 0.31ms from Los Angeles, US
79.13.198.79 AS3269 Telecom Italia S.p.A. 5.96ms from Naples, IT
199.98.16.191 AS6199 Cooper Union 1.02ms from New York City, US
187.51.238.143 AS10429 TELEFÔNICA BRASIL S.A 0.74ms from Osasco, BR
168.220.88.63 AS40509 Fly.io, Inc. 0.09ms from Osasco, BR
117.193.234.175 AS9829 National Internet Backbone 7.51ms from Saint Thomas Mount, IN
12.151.40.31 AS7018 AT&T Enterprises, LLC 2.30ms from San Jose, US
139.224.194.47 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.29ms from Shanghai, CN
47.232.114.111 AS20115 Charter Communications LLC 4.35ms from St. Louis, US
124.219.21.255 AS24154 Asia Pacific Broadband Fixed Lines Co., Ltd. 1.34ms from Taipei, TW
221.235.183.255 AS4134 CHINANET-BACKBONE 5.00ms from Wuhan, CN
13.73.136.47 AS8075 Microsoft Corporation 0.27ms from Amsterdam, NL
171.223.55.255 AS4134 CHINANET-BACKBONE 3.27ms from Chengdu, CN
68.45.50.191 AS7922 Comcast Cable Communications, LLC 8.98ms from Chicago, US
34.42.175.143 AS396982 Google LLC 0.12ms from Council Bluffs, US
140.172.1.111 AS3477 National Oceanic and Atmospheric Administration 1.86ms from Denver, US
87.183.241.223 AS3320 Deutsche Telekom AG 4.22ms from Frankfurt am Main, DE
68.103.7.111 AS22773 Cox Communications Inc. 9.27ms from Kansas City, US
176.144.21.223 AS5410 Bouygues Telecom SA 3.01ms from Lyon, FR

Traceroute

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

$
traceroute -a -n -q1 -f3 -m15 145.124.213.3
traceroute to 145.124.213.3 (145.124.213.3): 15 hops max, 52 byte packets
3 [AS3356] 171.75.9.210 4.225 ms
4 *
5 *
6 *
10 [AS1103] 145.145.2.172 6.403 ms
11 *
12 [AS1103] 195.169.63.180 6.435 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
On

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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