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
nic-hdl:        SNS1-RIPE
abuse-mailbox:  cert@surfcert.nl
mnt-by:         AS1103-MNT
created:        2002-07-09T10:06:06Z
last-modified:  2025-10-01T09:23:01Z
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
145.58.0.0/16 AS25182 Publieke Omroep Nederland 65,536
145.218.0.0/16 AS49362 DSV A/S 65,536
145.31.0.0/16 AS42894 Ministerie van Verkeer en Waterstaat/Rijkswaterstaat 65,536
145.247.0.0/16 AS41701 Porkkalankatu 3 65,536
145.50.0.0/16 AS42894 Ministerie van Verkeer en Waterstaat/Rijkswaterstaat 65,536
145.13.0.0/16 AS21286 F&IT RIM - OsirisNG, Zoetermeer 65,536
145.82.0.0/16 AS25019 Saudi Telecom Company JSC 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
145.222.0.0/16 AS21286 KPN B.V. 65,536
145.238.0.0/16 AS2200 Observatoire de Paris 65,536
145.232.0.0/16 AS15675 Etat de Vaud, CCT 65,536
145.236.0.0/16 AS1902 Budapest 65,536
145.55.0.0/16 AS16509 A100 ROW Inc 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
145.68.0.0/16 AS1136 ISC-NL 65,536
145.53.0.0/16 AS1136 KPN B.V. 65,536
145.0.0.0/16 AS1103 SURFnet bv 65,536
145.86.0.0/16 AS15830 Medisch Spectrum Twente 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
145.94.0.0/16 AS1128 Delft University of Technology Network 65,536
145.110.0.0/16 AS1104 NIKHEF 65,536
145.41.0.0/16 AS1103 SURF 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
145.140.14.171 llr.nl 1
145.140.8.38 millhillcollege.nl 1
145.140.7.165 demostrate.nl 1
145.140.7.157 fioretti-college.nl 1

Hosted domains API

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Pingable IPs

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

IP Address ASN Details
145.140.16.153 AS1103 SURF B.V. 2.10ms from Amsterdam, NL
145.140.194.19 AS1103 SURF B.V. 0.33ms from Amsterdam, NL
145.140.138.1 AS1103 SURF B.V. 4.71ms from Amsterdam, NL
145.140.24.81 AS1103 SURF B.V. 2.29ms from Amsterdam, NL
145.140.12.162 AS1103 SURF B.V. 4.99ms from Amsterdam, NL
145.140.17.2 AS1103 SURF B.V. 7.39ms from Amsterdam, NL
145.140.18.225 AS1103 SURF B.V. 3.62ms from Amsterdam, NL
145.140.27.54 AS1103 SURF B.V. 4.00ms from Amsterdam, NL
145.140.137.37 AS1103 SURF B.V. 3.02ms from Amsterdam, NL
145.140.130.239 AS1103 SURF B.V. 4.85ms from Amsterdam, NL
145.140.140.1 AS1103 SURF B.V. 2.66ms from Amsterdam, NL
145.140.13.241 AS1103 SURF B.V. 1.53ms from Amsterdam, NL
145.140.193.11 AS1103 SURF B.V. 0.46ms from Amsterdam, NL
145.140.10.204 AS1103 SURF B.V. 3.04ms from Amsterdam, NL
145.140.191.254 AS1103 SURF B.V. 0.36ms from Amsterdam, NL
145.140.23.194 AS1103 SURF B.V. 1.41ms from Amsterdam, NL
145.140.187.142 AS1103 SURF B.V. 0.35ms from Amsterdam, NL
145.140.21.154 AS1103 SURF B.V. 2.53ms from Amsterdam, NL
145.140.184.94 AS1103 SURF B.V. 0.37ms from Amsterdam, NL
145.140.8.221 AS1103 SURF B.V. 2.39ms from Amsterdam, NL
145.140.22.18 AS1103 SURF B.V. 9.03ms from Amsterdam, NL
145.140.28.65 AS1103 SURF B.V. 1.86ms from Amsterdam, NL
145.140.131.88 AS1103 SURF B.V. 4.01ms from Amsterdam, NL
145.140.7.3 AS1103 SURF B.V. 3.38ms from Amsterdam, NL
145.140.127.6 AS1103 SURF B.V. 0.34ms 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
151.206.83.94 AS8075 Microsoft Corporation 0.41ms from Ashburn, US
67.166.230.46 AS7922 Comcast Cable Communications, LLC 5.15ms from Atlanta, US
202.183.119.190 AS9723 iseek Communications Pty Ltd 0.58ms from Brisbane, AU
50.196.216.222 AS7922 Comcast Cable Communications, LLC 5.46ms from Chicago, US
12.201.47.14 AS7018 AT&T Enterprises, LLC 1.17ms from Dallas, US
69.164.99.222 AS7381 BroadbandONE, LLC 1.16ms from Denver, US
162.224.48.30 AS7018 AT&T Enterprises, LLC 2.01ms from Houston, US
147.139.199.174 AS45102 Alibaba (US) Technology Co., Ltd. 0.70ms from Jakarta, ID
35.176.17.126 AS16509 Amazon.com, Inc. 0.17ms from London, GB
74.48.162.190 AS35916 MULTACOM CORPORATION 0.24ms from Los Angeles, US
122.3.134.110 AS9299 Philippine Long Distance Telephone Company 1.30ms from Manila, PH
68.233.120.78 AS31898 Oracle Corporation 0.15ms from Montreal, CA
69.253.50.62 AS7922 Comcast Cable Communications, LLC 6.90ms from Morris Plains, US
85.11.66.222 AS30851 Sileman Sp. z o.o. 5.93ms from Poznan, PL
174.49.173.238 AS7922 Comcast Cable Communications, LLC 19.03ms from Reston, US
166.255.85.78 AS6167 Verizon Business 16.03ms from San Jose, US
14.60.31.254 AS4766 Korea Telecom 2.86ms from Seoul, KR
221.154.15.254 AS4766 Korea Telecom 1.25ms from Seoul, KR
112.172.160.30 AS4766 Korea Telecom 1.12ms from Seoul, KR
121.171.45.62 AS4766 Korea Telecom 1.28ms from Seoul, KR
175.125.25.174 AS9318 SK Broadband Co Ltd 2.13ms from Seoul, KR
51.21.27.190 AS16509 Amazon.com, Inc. 0.10ms from Stockholm, SE
124.157.68.30 AS24324 Kordia Limited 0.52ms from Sydney, AU
118.165.103.78 AS3462 Data Communication Business Group 1.18ms from Taipei, TW
60.251.229.254 AS3462 Data Communication Business Group 1.20ms from Taipei, TW

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 145.140.228.123
traceroute to 145.140.228.123 (145.140.228.123): 7 hops max, 52 byte packets
3 [] 80.249.208.34 77.037 ms
4 [AS1103] 145.145.0.196 87.823 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Omsk, RU
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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