1. All IP Ranges
  2. 145.0.0.0/8
  3. AS1103  | 145.144.0.0/12

145.144.0.0/12

AS1103  ·  SURF B.V.

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Summary

Country Netherlands
Domain surfnet.nl
ASN AS1103
Registry RIPE
ID SURFNET-BLOCKB140

WHOIS Details

inetnum:        145.144.0.0 - 145.144.255.255
netname:        SURFNET-BLOCKB140
org:            ORG-Sb3-RIPE
descr:          SURFnet bv
descr:          P.O. Box 19035
descr:          3501 DA Utrecht
country:        NL
admin-c:        SNS1-RIPE
tech-c:         SNS1-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
remarks:        -------------------------------------------------
remarks:        Use [email protected] to report security incidents.
remarks:        See http://cert.surfnet.nl/ for more information.
remarks:        -------------------------------------------------
mnt-by:         SN-LIR-MNT
mnt-lower:      SN-LIR-MNT
mnt-routes:     SN-LIR-MNT
mnt-irt:        irt-SURFcert
notify:         [email protected]
created:        2003-09-09T09:34:24Z
last-modified:  2017-06-12T12:10:24Z
source:         RIPE
abuse-email:    [email protected]
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:         [email protected]
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:    [email protected]
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:  [email protected]
mnt-by:         AS1103-MNT
created:        2002-07-09T10:06:06Z
last-modified:  2025-11-05T14:44:07Z
source:         RIPE
e-mail:         [email protected]

route:          145.144.0.0/12
descr:          SURFnet CIDR Block II c
origin:         AS1103
mnt-by:         AS1103-MNT
mnt-lower:      AS1103-MNT
mnt-routes:     AS1103-MNT
created:        2018-07-05T14:42:26Z
last-modified:  2018-07-05T14:42:26Z
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
145.32.0.0/16 AS34108 Gemeente Delft 65,536
145.95.0.0/16 AS1103 SURF B.V. 65,536
145.238.0.0/16 AS2200 Observatoire de Paris 65,536
145.245.0.0/16 AS2047 Hoffmann - La Roche Ltd. 65,536
145.228.0.0/16 AS33873 Arvato Systems GmbH 65,536
145.220.0.0/16 AS1101 SURF B.V. 65,536
145.243.0.0/16 AS200757 Axel Springer SE 65,536
145.55.0.0/16 AS16509 A100 ROW Inc 65,536
145.222.0.0/16 AS21286 KPN B.V. 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
145.13.0.0/16 AS21286 F&IT RIM - OsirisNG, Zoetermeer 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
145.234.0.0/16 AS206567 Tamedia AG 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
145.58.0.0/16 AS25182 Publieke Omroep Nederland 65,536

Hosted domains

There are 8 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
145.144.245.239 signal.surf 3
145.144.245.6 makaay.nl 1
145.148.244.248 magictron.eu 1
145.144.245.149 pwning.nl 1
145.155.189.195 metaverifiedsupport.net 1
145.145.18.178 xs4some.net 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

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

IP Address ASN Details
145.145.19.51 AS1103 SURF B.V. 0.45ms from Amsterdam, NL
145.145.4.185 AS1103 SURF B.V. 0.52ms from Amsterdam, NL
145.145.170.81 AS1103 SURF B.V. 3.21ms from Amsterdam, NL
145.144.244.1 AS1103 SURF B.V. 3.10ms from Amsterdam, NL
145.145.166.36 AS1103 SURF B.V. 0.46ms from Amsterdam, NL
145.145.17.33 AS1103 SURF B.V. 0.65ms from Amsterdam, NL
145.145.8.34 AS1103 SURF B.V. 2.85ms from Amsterdam, NL
145.144.245.0 AS1103 SURF B.V. 2.97ms from Amsterdam, NL
145.145.36.4 AS1103 SURF B.V. 1.64ms from Amsterdam, NL
145.144.2.5 AS1103 SURF B.V. 0.71ms from Amsterdam, NL
145.145.145.145 AS1103 SURF B.V. 0.52ms from Amsterdam, NL
145.145.23.10 AS1103 SURF B.V. 1.78ms from Amsterdam, NL
145.145.24.114 AS1103 SURF B.V. 0.71ms from Amsterdam, NL
145.145.35.25 AS1103 SURF B.V. 1.40ms from Amsterdam, NL
145.145.10.17 AS1103 SURF B.V. 0.74ms from Amsterdam, NL
145.145.30.134 AS1103 SURF B.V. 1.98ms from Amsterdam, NL
145.146.1.1 AS1103 SURF B.V. 0.76ms from Amsterdam, NL
145.145.26.109 AS1103 SURF B.V. 0.66ms from Amsterdam, NL
145.145.6.81 AS1103 SURF B.V. 0.47ms from Amsterdam, NL
145.145.20.38 AS1103 SURF B.V. 0.42ms from Amsterdam, NL
145.145.0.223 AS1103 SURF B.V. 0.51ms from Amsterdam, NL
145.145.12.11 AS1103 SURF B.V. 0.57ms from Amsterdam, NL
145.145.22.194 AS1103 SURF B.V. 2.00ms from Amsterdam, NL
145.145.31.6 AS1103 SURF B.V. 3.71ms from Amsterdam, NL
145.146.0.2 AS1103 SURF B.V. 0.55ms 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
82.76.160.108 AS8708 DIGI ROMANIA S.A. 0.79ms from Bucharest, RO
41.10.204.76 AS36994 Vodacom 3.44ms from Cape Town, ZA
136.113.181.236 AS396982 Google LLC 0.12ms from Council Bluffs, US
188.125.19.44 AS1902 Deutsche Telekom Pan-Net s.r.o. 0.81ms from Frankfurt am Main, DE
81.132.32.76 AS2856 British Telecommunications PLC 5.30ms from London, GB
188.123.62.108 AS29072 Regional Digital Telecommunication Company LLC 10.46ms from Novosibirsk, RU
86.250.73.252 AS3215 Orange S.A. 19.35ms from Paris, FR
3.221.71.236 AS14618 Amazon.com, Inc. 0.18ms from Reston, US
54.242.16.44 AS14618 Amazon.com, Inc. 0.18ms from Reston, US
81.88.85.92 AS39684 OOO Mango Telecom 0.11ms from San Jose, US
177.112.24.108 AS26599 TELEFÔNICA BRASIL S.A 9.43ms from São Paulo, BR
172.105.4.60 AS63949 Akamai Connected Cloud 0.23ms from Toronto, CA
125.24.190.12 AS23969 TOT Public Company Limited 1.32ms from Bangkok, TH
39.97.98.12 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.42ms from Beijing, CN
189.61.7.204 AS28573 Claro NXT Telecomunicacoes Ltda 6.59ms from Brasilia, BR
78.21.95.92 AS6848 Telenet BV 10.22ms from Brussels, BE
48.214.165.204 AS8075 Microsoft Corporation 0.18ms from Des Moines, US
23.111.50.252 AS39134 EDINAYA SET LIMITED LIABILITY COMPANY 0.58ms from Moscow, RU
84.185.51.156 AS3320 Deutsche Telekom AG 4.66ms from Nuernberg, DE
82.123.81.140 AS3215 Orange S.A. 3.36ms from Paris, FR
86.195.13.92 AS3215 Orange S.A. 1.96ms from Paris, FR
52.21.125.28 AS14618 Amazon.com, Inc. 0.16ms from Reston, US
44.196.3.188 AS14618 Amazon.com, Inc. 0.19ms from Reston, US
46.9.163.28 AS2119 Telenor Norge AS 11.66ms from Sandefjord, NO
121.137.85.188 AS4766 Korea Telecom 1.89ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -f3 -m8 145.144.4.35
traceroute to 145.144.4.35 (145.144.4.35): 8 hops max, 52 byte packets
3 [AS1103] 145.145.181.181 184.841 ms
4 [AS1103] 145.145.176.41 148.148 ms
5 [AS1103] 145.145.176.42 144.345 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Salt Lake City, US
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.

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