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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:    cert@surfcert.nl
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:         noc@astron.nl
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:         lir@surfnet.nl
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
145.228.0.0/16 AS33873 Arvato Systems GmbH 65,536
145.218.0.0/16 AS49362 DSV A/S 65,536
145.26.0.0/16 AS3917 Shell Information Technology International 65,536
145.13.0.0/16 AS21286 F&IT RIM - OsirisNG, Zoetermeer 65,536
145.233.0.0/16 AS3549 LUMEN TECHNOLOGIES UK LIMITED 65,536
145.32.0.0/16 AS34108 Gemeente Delft 65,536
145.10.0.0/16 AS48037 SSC-ICT Haaglanden 65,536
145.222.0.0/16 AS21286 KPN B.V. 65,536
145.238.0.0/16 AS2200 Observatoire de Paris 65,536
145.237.0.0/16 AS34339 Centrum Informatyki Resortu Finansow 65,536
145.245.0.0/16 AS2047 Hoffmann - La Roche Ltd. 65,536
145.244.0.0/16 AS210543 Steiermaerkische Krankenanstalten GesmbH 65,536
145.82.0.0/16 AS25019 Saudi Telecom Company JSC 65,536
145.58.0.0/16 AS25182 Publieke Omroep Nederland 65,536
145.86.0.0/16 AS15830 Medisch Spectrum Twente 65,536
145.236.0.0/16 AS1902 Budapest 65,536
145.232.0.0/16 AS15675 Etat de Vaud, CCT 65,536
145.234.0.0/16 AS206567 Tamedia AG 65,536
145.243.0.0/16 AS200757 Axel Springer SE 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
145.220.0.0/16 AS1101 SURF B.V. 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
145.55.0.0/16 AS16509 A100 ROW Inc 65,536
145.68.0.0/16 AS1136 ISC-NL 65,536
145.0.0.0/16 AS1103 SURFnet bv 65,536
145.51.0.0/16 AS1103 Hogeschool Rotterdam & Omstreken 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
145.95.0.0/16 AS1103 SURF B.V. 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

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
145.125.47.89 beachpublicationignorance.christmas 1
145.124.51.226 astron.wiki 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

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

IP Address ASN Details
145.124.139.223 AS1103 SURF B.V. 3.88ms from Amsterdam, NL
145.124.131.255 AS1103 SURF B.V. 3.88ms from Amsterdam, NL
145.124.141.223 AS1103 SURF B.V. 3.88ms from Amsterdam, NL
145.124.0.74 AS1103 SURF B.V. 2.71ms from Amsterdam, NL
145.124.146.127 AS1103 SURF B.V. 3.82ms from Amsterdam, NL
145.124.48.1 AS1103 SURF B.V. 2.88ms from Amsterdam, NL
145.125.200.59 AS1103 SURF B.V. 0.57ms from Amsterdam, NL
145.124.152.127 AS1103 SURF B.V. 3.84ms from Amsterdam, NL
145.124.193.132 AS1103 SURF B.V. 3.61ms from Amsterdam, NL
145.125.196.17 AS1103 SURF B.V. 0.58ms from Amsterdam, NL
145.125.204.44 AS1103 SURF B.V. 0.48ms from Amsterdam, NL
145.124.147.65 AS1103 SURF B.V. 3.97ms from Amsterdam, NL
145.124.133.127 AS1103 SURF B.V. 3.89ms from Amsterdam, NL
145.125.0.12 AS1103 SURF B.V. 0.72ms from Amsterdam, NL
145.125.199.1 AS1103 SURF B.V. 0.56ms from Amsterdam, NL
145.124.49.69 AS1103 SURF B.V. 2.94ms from Amsterdam, NL
145.124.33.1 AS1103 SURF B.V. 2.86ms from Amsterdam, NL
145.125.193.29 AS1103 SURF B.V. 0.43ms from Amsterdam, NL
145.124.120.1 AS1103 SURF B.V. 2.89ms from Amsterdam, NL
145.124.140.65 AS1103 SURF B.V. 3.85ms from Amsterdam, NL
145.125.88.0 AS1103 SURF B.V. 0.72ms from Amsterdam, NL
145.124.111.97 AS1103 SURF B.V. 2.95ms from Amsterdam, NL
145.124.153.97 AS1103 SURF B.V. 3.86ms from Amsterdam, NL
145.124.129.223 AS1103 SURF B.V. 3.90ms from Amsterdam, NL
145.125.207.17 AS1103 SURF B.V. 0.56ms 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
77.11.180.191 AS6805 Telefonica Germany GmbH & Co.OHG 2.94ms from Berlin, DE
8.41.31.159 AS27195 EPIC Alliance, Inc. 0.63ms from Kansas City, US
174.134.60.31 AS33363 Charter Communications, Inc 9.19ms from Los Angeles, US
212.193.174.15 AS47354 PJSC "LK Europlan" 0.82ms from Moscow, RU
113.17.129.255 AS4134 CHINANET-BACKBONE 6.91ms from Nanning, CN
180.143.86.255 AS4134 CHINANET-BACKBONE 4.56ms from Nanning, CN
37.23.111.63 AS12389 PJSC Rostelecom 5.99ms from Novosibirsk, RU
210.182.116.191 AS3786 LG DACOM Corporation 1.43ms from Seoul, KR
40.112.16.31 AS8075 Microsoft Corporation 1.41ms from Singapore, SG
57.181.76.15 AS16509 Amazon.com, Inc. 0.22ms from Tokyo, JP
124.212.17.31 AS2516 KDDI CORPORATION 5.76ms from Tokyo, JP
198.251.56.159 AS54198 Videotron Ltee 1.26ms from Toronto, CA
222.91.144.207 AS4134 CHINANET-BACKBONE 4.16ms from Xi'an, CN
90.168.169.47 AS12479 Orange Espagne SA 5.75ms from Zaragoza, ES
115.54.171.239 AS4837 CHINA UNICOM China169 Backbone 5.04ms from Zhengzhou, CN
73.137.185.239 AS7922 Comcast Cable Communications, LLC 1.58ms from Atlanta, US
157.151.54.127 AS31898 Oracle Corporation 0.14ms from Bogota, CO
152.201.51.175 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 11.26ms from Bogota, CO
18.224.89.63 AS16509 Amazon.com, Inc. 0.15ms from Columbus, US
3.15.187.239 AS16509 Amazon.com, Inc. 0.65ms from Columbus, US
89.56.158.111 AS207790 SWN Stadtwerke Neumuenster GmbH 2.08ms from Hamburg, DE
149.108.37.255 AS23700 Linknet-Fastnet ASN 1.14ms from Jakarta, ID
90.181.44.79 AS5610 O2 Czech Republic, a.s. 9.02ms from Prague, CZ
114.162.247.111 AS4713 NTT DOCOMO BUSINESS,Inc. 4.59ms from Tokyo, JP
68.191.57.143 AS20115 Charter Communications LLC 11.12ms from Ashburn, US

Traceroute

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

$
traceroute -a -n -q1 -f2 145.124.223.255
traceroute to 145.124.223.255 (145.124.223.255): 64 hops max, 52 byte packets
2 [] 185.1.160.38 0.356 ms
5 [AS1103] 145.145.2.172 6.262 ms
6 *
8 [AS1103] 145.124.0.74 2.689 ms
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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