1. All IP Ranges
  2. 145.0.0.0/8
  3. AS1103  | 145.140.0.0/14

145.140.0.0/14

AS1103  ·  SURF B.V.

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Summary

Country Netherlands
Domain surf.nl
ASN AS1103
Registry RIPE
ID SURFPARENTBLOCK

WHOIS Details

inetnum:        145.136.0.0 - 145.143.255.255
netname:        SURFparentblock
org:            ORG-Sb3-RIPE
country:        NL
admin-c:        SNS1-RIPE
tech-c:         SNS1-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
mnt-lower:      SURF-AUTO-MNT
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-lower:      SN-LIR-MNT
mnt-routes:     SN-LIR-MNT
mnt-irt:        irt-SURFcert
notify:         lir@surfnet.nl
created:        2019-10-10T14:12:41Z
last-modified:  2025-10-02T17:44:44Z
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
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      undefined

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
tech-c:         BW4086-RIPE
tech-c:         EV4604-RIPE
nic-hdl:        SNS1-RIPE
abuse-mailbox:  cert@surfcert.nl
mnt-by:         AS1103-MNT
created:        2002-07-09T10:06:06Z
last-modified:  2025-11-05T14:44:07Z
source:         RIPE
e-mail:         noc@surf.nl

route:          145.138.0.0/16
descr:          SURFnet CIDR Block II b-b
origin:         AS1103
mnt-by:         AS1103-MNT
created:        2020-04-09T13:22:56Z
last-modified:  2020-04-09T13:22:56Z
source:         RIPE
mnt-lower:      AS1103-MNT
mnt-routes:     AS1103-MNT

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
145.26.0.0/16 AS3917 Shell Information Technology International 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
145.58.0.0/16 AS25182 Publieke Omroep Nederland 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 8 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
145.140.8.110 sgboz.nl 4
145.140.8.38 millhillcollege.nl 1
145.140.14.171 llr.nl 1
145.140.7.157 fioretti-college.nl 1
145.140.7.165 demostrate.nl 1

Hosted domains API

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Useful for Cybersecurity
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Pingable IPs

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

IP Address ASN Details
145.140.128.97 AS1103 SURF B.V. 4.16ms from Amsterdam, NL
145.140.13.241 AS1103 SURF B.V. 1.51ms from Amsterdam, NL
145.140.186.166 AS1103 SURF B.V. 0.37ms from Amsterdam, NL
145.140.194.3 AS1103 SURF B.V. 0.37ms from Amsterdam, NL
145.140.137.37 AS1103 SURF B.V. 3.02ms from Amsterdam, NL
145.140.130.247 AS1103 SURF B.V. 4.86ms from Amsterdam, NL
145.140.27.222 AS1103 SURF B.V. 4.17ms from Amsterdam, NL
145.140.11.89 AS1103 SURF B.V. 10.93ms from Amsterdam, NL
145.140.7.129 AS1103 SURF B.V. 3.63ms from Amsterdam, NL
145.140.31.249 AS1103 SURF B.V. 4.13ms from Amsterdam, NL
145.140.3.93 AS1103 SURF B.V. 4.20ms from Amsterdam, NL
145.140.24.81 AS1103 SURF B.V. 2.25ms from Amsterdam, NL
145.140.28.65 AS1103 SURF B.V. 1.61ms from Amsterdam, NL
145.140.23.193 AS1103 SURF B.V. 1.44ms from Amsterdam, NL
145.140.193.13 AS1103 SURF B.V. 0.46ms from Amsterdam, NL
145.140.30.185 AS1103 SURF B.V. 10.23ms from Amsterdam, NL
145.140.12.162 AS1103 SURF B.V. 4.82ms from Amsterdam, NL
145.140.22.18 AS1103 SURF B.V. 8.80ms from Amsterdam, NL
145.140.131.66 AS1103 SURF B.V. 4.18ms from Amsterdam, NL
145.140.4.2 AS1103 SURF B.V. 2.86ms from Amsterdam, NL
145.140.29.161 AS1103 SURF B.V. 5.75ms from Amsterdam, NL
145.140.21.154 AS1103 SURF B.V. 2.42ms from Amsterdam, NL
145.140.2.161 AS1103 SURF B.V. 4.35ms from Amsterdam, NL
145.140.10.9 AS1103 SURF B.V. 3.20ms from Amsterdam, NL
145.140.127.34 AS1103 SURF B.V. 0.35ms 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
67.76.106.30 AS19901 Brightspeed 12.60ms from Ashburn, US
207.195.188.14 AS53780 APPRIVER LLC 0.78ms from Atlanta, US
41.38.59.46 AS8452 TE-AS 4.89ms from Cairo, EG
66.228.50.110 AS63949 Akamai Connected Cloud 0.76ms from Dallas, US
198.153.99.254 AS5056 Aureon Network Services 1.57ms from Des Moines, US
151.80.229.254 AS16276 OVH SAS 0.27ms from Gravelines, FR
64.136.25.254 AS13446 Netzero,INC. 1.53ms from Las Vegas, US
209.152.84.254 AS5056 Aureon Network Services 3.02ms from Lincoln, US
92.37.10.110 AS21283 A1 Slovenija telekomunikacijske storitve,d.d. 1.08ms from Ljubljana, SI
130.79.140.110 AS2259 Renater 12.30ms from Marseille, FR
77.45.221.46 AS12389 PJSC Rostelecom 8.64ms from Moscow, RU
62.113.110.254 AS198610 Beget LLC 9.62ms from Moscow, RU
13.218.80.238 AS14618 Amazon.com, Inc. 0.44ms from Reston, US
68.192.186.158 AS6128 Cablevision Systems Corp. 3.12ms from Secaucus, US
27.101.107.14 AS17841 NATIONAL INFORMATION RESOURCES SERVICE 4.30ms from Seoul, KR
183.101.201.254 AS4766 Korea Telecom 1.42ms from Seoul, KR
121.171.45.62 AS4766 Korea Telecom 1.20ms from Seoul, KR
58.161.6.14 AS1221 Telstra Limited 2.87ms from Sydney, AU
23.209.32.190 AS16625 Akamai Technologies, Inc. 0.27ms from Tokyo, JP
219.166.164.110 AS4713 NTT DOCOMO BUSINESS,Inc. 2.60ms from Tokyo, JP
197.10.173.174 AS328880 STE INTERNET SMART SOLUTIONS 2.09ms from Tunis, TN
20.101.226.62 AS8075 Microsoft Corporation 0.26ms from Amsterdam, NL
123.123.167.126 AS4808 China Unicom Beijing Province Network 3.75ms from Beijing, CN
74.94.183.158 AS7922 Comcast Cable Communications, LLC 6.56ms from Boston, US
202.183.119.190 AS9723 iseek Communications Pty Ltd 0.60ms from Brisbane, AU

Traceroute

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

$
traceroute -a -n -q1 -f2 -m7 145.141.238.159
traceroute to 145.141.238.159 (145.141.238.159): 7 hops max, 52 byte packets
3 *
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in London, GB
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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