145.126.0.0/16

AS1103 · SURF B.V.

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Summary

Country	Netherlands
Domain	surfnet.nl
ASN	AS1103
Registry	RIPE
ID	SURFNET-BLOCKB122

WHOIS Details

inetnum:        145.126.0.0 - 145.126.255.255
netname:        SURFNET-BLOCKB122
descr:          SURFnet bv
descr:          P.O. Box 19035
descr:          3501 DA Utrecht
country:        NL
admin-c:        SNS1-RIPE
tech-c:         SNS1-RIPE
status:         LEGACY
remarks:        -------------------------------------------------
remarks:        Use cert@surfnet.nl 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:         lir@surfnet.nl
created:        2003-09-09T09:34:08Z
last-modified:  2019-12-04T13:13:07Z
source:         RIPE
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

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:          145.126.0.0/16
origin:         AS1103
descr:          145.126.0.0/16 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
145.26.0.0/16	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
145.108.0.0/16	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 no domains currently hosted on this ASN.

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

1,744 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
145.126.79.130	AS1103 SURF B.V.	`6.01ms` from Amsterdam, NL
145.126.42.84	AS1103 SURF B.V.	`5.86ms` from Amsterdam, NL
145.126.77.5	AS1103 SURF B.V.	`6.48ms` from Amsterdam, NL
145.126.112.10	AS1103 SURF B.V.	`4.61ms` from Amsterdam, NL
145.126.107.33	AS1103 SURF B.V.	`5.91ms` from Amsterdam, NL
145.126.78.88	AS1103 SURF B.V.	`7.14ms` from Amsterdam, NL
145.126.39.230	AS1103 SURF B.V.	`6.48ms` from Amsterdam, NL
145.126.2.240	AS1103 SURF B.V.	`5.77ms` from Amsterdam, NL
145.126.50.7	AS1103 SURF B.V.	`5.82ms` from Amsterdam, NL
145.126.57.184	AS1103 SURF B.V.	`6.65ms` from Amsterdam, NL
145.126.95.85	AS1103 SURF B.V.	`5.66ms` from Amsterdam, NL
145.126.88.5	AS1103 SURF B.V.	`4.38ms` from Amsterdam, NL
145.126.17.196	AS1103 SURF B.V.	`5.29ms` from Amsterdam, NL
145.126.74.111	AS1103 SURF B.V.	`6.80ms` from Amsterdam, NL
145.126.105.19	AS1103 SURF B.V.	`5.60ms` from Amsterdam, NL
145.126.81.228	AS1103 SURF B.V.	`5.52ms` from Amsterdam, NL
145.126.33.237	AS1103 SURF B.V.	`5.78ms` from Amsterdam, NL
145.126.22.65	AS1103 SURF B.V.	`6.06ms` from Amsterdam, NL
145.126.23.132	AS1103 SURF B.V.	`5.91ms` from Amsterdam, NL
145.126.44.5	AS1103 SURF B.V.	`5.55ms` from Amsterdam, NL
145.126.48.5	AS1103 SURF B.V.	`4.43ms` from Amsterdam, NL
145.126.1.253	AS1103 SURF B.V.	`6.14ms` from Amsterdam, NL
145.126.31.14	AS1103 SURF B.V.	`5.84ms` from Amsterdam, NL
145.126.97.179	AS1103 SURF B.V.	`6.37ms` from Amsterdam, NL
145.126.26.243	AS1103 SURF B.V.	`6.23ms` 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
171.6.182.128	AS45758 Triple T Broadband Public Company Limited	`2.20ms` from Bangkok, TH
79.201.82.80	AS3320 Deutsche Telekom AG	`4.08ms` from Berlin, DE
58.104.37.128	AS4804 Microplex PTY LTD	`13.90ms` from Brisbane, AU
2.202.4.144	AS3209 Vodafone GmbH	`3.98ms` from Duesseldorf, DE
80.69.174.64	AS202053 UpCloud Ltd	`0.38ms` from Helsinki, FI
79.152.126.80	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.31ms` from Madrid, ES
72.85.14.176	AS701 Verizon Business	`4.09ms` from Philadelphia, US
61.47.209.0	AS17597 SK Broadband Co Ltd	`1.95ms` from Seoul, KR
112.170.213.32	AS4766 Korea Telecom	`1.62ms` from Seoul, KR
121.143.230.208	AS4766 Korea Telecom	`1.79ms` from Seoul, KR
58.146.223.0	AS9698 LG HelloVision Corp.	`4.96ms` from Seoul, KR
88.196.171.32	AS3249 Telia Eesti AS	`1.13ms` from Tallinn, EE
64.120.108.80	AS30633 Leaseweb USA, Inc.	`0.13ms` from Washington, US
91.197.143.16	AS43584 Maytech Communications Ltd	`0.74ms` from Amsterdam, NL
200.59.250.48	AS27751 Neunet S.A.	`16.17ms` from Buenos Aires, AR
97.149.74.112	AS6167 Verizon Business	`9.58ms` from Chicago, US
168.62.227.240	AS8075 Microsoft Corporation	`0.36ms` from Chicago, US
109.223.206.64	AS3215 Orange S.A.	`10.51ms` from Frankfurt am Main, DE
173.194.84.16	AS15169 Google LLC	`0.07ms` from Melbourne, AU
82.106.99.0	AS3269 Telecom Italia S.p.A.	`3.34ms` from Milan, IT
95.142.165.0	AS203476 GANDI SAS	`0.41ms` from Paris, FR
86.214.228.224	AS3215 Orange S.A.	`9.84ms` from Paris, FR
54.196.113.224	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
3.216.25.48	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
27.237.183.160	AS4766 Korea Telecom	`5.45ms` 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 -f4 145.126.81.246

traceroute to 145.126.81.246 (145.126.81.246): 64 hops max, 52 byte packets

4 [] 185.1.160.38 0.532 ms

5 [AS1103] 145.145.181.181 5.168 ms

6 [AS1103] 145.145.176.46 5.762 ms

7 [AS1103] 145.145.176.61 5.076 ms

8 [AS1103] 145.145.4.41 5.668 ms

9 [AS1103] 145.145.4.42 5.11 ms

10 [AS1133] 130.89.254.6 49.36 ms

11 [AS1133] 130.89.254.33 5.366 ms

12 [AS1103] 145.126.81.246 16.336 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On December 6th 2025

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