145.97.20.0/22

AS1103 · SURF B.V.

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Summary

Country	Netherlands
Domain	surf.nl
ASN	AS1103
Registry	RIPE
ID	SNET-AT-SARA

WHOIS Details

inetnum:        145.97.20.0 - 145.97.23.255
netname:        SNET-AT-SARA
descr:          SURFnet SURFcloud
descr:          Amsterdam
country:        NL
admin-c:        SNS1-RIPE
tech-c:         SNS1-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
mnt-by:         SURF-AUTO-MNT
mnt-irt:        irt-SURFcert
created:        2010-07-23T14:12:48Z
last-modified:  2025-10-02T17:29:06Z
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:          145.97.20.0/22
descr:          SNET-AT-SARA
origin:         AS1103
mnt-by:         AS1103-MNT
created:        2010-09-08T10:26:09Z
last-modified:  2010-09-08T10:26:09Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 145.97.0.0/16

Range	ASN	Company	Num of IPs
145.97.192.0/18	AS1103	SURF B.V.	16,384
145.97.128.0/18	AS1103	Rijks Universiteit Groningen	16,384
145.97.64.0/18	AS1103	ROC Oost-Nederland	16,384
145.97.0.0/20	AS1103	SURF B.V.	4,096
145.97.48.0/20	AS1103	ROC Oost-Nederland	4,096
145.97.32.0/20	AS1145	Kennisnet Platform Content en Diensten	4,096
145.97.24.0/21	AS1103	Radboud University Nijmegen	2,048
145.97.16.0/22	AS1103	Hogeschool Leiden	1,024

Hosted domains

There are 3 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
145.97.20.20	rootcanary.org	1
145.97.20.10	edu.nl	1
145.97.23.183	catharijnecollege.nl	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
145.97.21.65	AS1103 SURF B.V.	`0.59ms` from Amsterdam, NL
145.97.20.69	AS1103 SURF B.V.	`0.53ms` from Amsterdam, NL
145.97.22.1	AS1103 SURF B.V.	`0.57ms` 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
145.131.144.54	AS28685 Routit BV	`1.28ms` from Amsterdam, NL
3.31.59.86	AS8987 Amazon Data Services Ireland Ltd	`0.74ms` from Boardman, US
122.157.74.6	AS4837 CHINA UNICOM China169 Backbone	`11.73ms` from Changchun, CN
12.248.34.230	AS7018 AT&T Enterprises, LLC	`2.36ms` from Chicago, US
18.157.232.22	AS16509 Amazon.com, Inc.	`0.15ms` from Frankfurt am Main, DE
52.59.64.214	AS16509 Amazon.com, Inc.	`0.16ms` from Frankfurt am Main, DE
84.172.117.166	AS3320 Deutsche Telekom AG	`6.20ms` from Frankfurt am Main, DE
213.111.183.102	AS9009 M247 Europe SRL	`0.82ms` from Helsinki, FI
98.180.214.22	AS22773 Cox Communications Inc.	`12.60ms` from Kansas City, US
95.37.70.182	AS12389 PJSC Rostelecom	`6.01ms` from Kazan, RU
173.12.92.102	AS7922 Comcast Cable Communications, LLC	`4.34ms` from Miami, US
73.37.222.22	AS7922 Comcast Cable Communications, LLC	`8.00ms` from Minneapolis, US
20.214.193.22	AS8075 Microsoft Corporation	`0.20ms` from Seoul, KR
81.68.68.102	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.76ms` from Shanghai, CN
191.56.78.214	AS4230 CLARO S.A.	`16.74ms` from São Paulo, BR
183.191.158.102	AS4837 CHINA UNICOM China169 Backbone	`2.36ms` from Taiyuan, CN
152.23.251.38	AS36850 University of North Carolina at Chapel Hill	`14.76ms` from Ashburn, US
162.10.133.54	AS55256 Netskope Inc	`0.17ms` from Atlanta, US
50.187.48.134	AS7922 Comcast Cable Communications, LLC	`4.64ms` from Boston, US
206.195.87.166	AS21565 Horry Telephone Cooperative, Inc.	`7.80ms` from Charlotte, US
103.153.71.22	AS63763 VCCORP-VN	`0.75ms` from Hanoi, VN
117.6.3.198	AS7552 Viettel Group	`1.91ms` from Hanoi, VN
95.219.236.134	AS25019 Saudi Telecom Company JSC	`5.54ms` from Jeddah, SA
168.138.242.246	AS31898 Oracle Corporation	`0.28ms` from Sao Paulo, BR
49.160.191.214	AS17858 LG POWERCOMM	`1.92ms` 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 -f2 -m10 145.97.23.61

traceroute to 145.97.23.61 (145.97.23.61): 10 hops max, 52 byte packets

2 [AS13194] 185.0.20.18 15.841 ms

3 [AS24785] 217.170.0.243 22.694 ms

4 [AS24785] 213.207.8.116 20.602 ms

5 [AS1103] 145.145.14.20 21.716 ms

6 [AS1103] 145.145.14.21 21.812 ms

7 [AS1103] 145.101.112.43 20.063 ms

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Measurement taken from

IPinfo ProbeNet in Vienna, AT

On December 6th 2025

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