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:    [email protected]
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:  [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:          145.97.20.0/22
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
145.97.20.10	edu.nl	1
145.97.23.183	catharijnecollege.nl	1
145.97.20.20	rootcanary.org	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
145.97.20.69	AS1103 SURF B.V.	`0.53ms` from Amsterdam, NL
145.97.21.65	AS1103 SURF B.V.	`0.59ms` 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
79.129.94.182	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`1.06ms` from Athens, GR
87.128.47.22	AS3320 Deutsche Telekom AG	`4.77ms` from Berlin, DE
16.144.100.214	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
190.27.148.54	AS19429 ETB - Colombia	`1.16ms` from Bogota, CO
3.149.7.150	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
204.12.77.246	AS20021 Ntirety, Inc.	`0.71ms` from Denver, US
60.168.255.166	AS4134 CHINANET-BACKBONE	`7.05ms` from Huai'an, CN
78.186.179.86	AS9121 Turk Telekomunikasyon Anonim Sirketi	`2.03ms` from Izmir, TR
34.50.102.198	AS396982 Google LLC	`0.12ms` from Jakarta, ID
197.94.220.198	AS20011 Dimension Data	`1.20ms` from Johannesburg, ZA
20.250.0.134	AS8075 Microsoft Corporation	`0.20ms` from Kloten, CH
148.63.162.246	AS12353 Vodafone Portugal	`6.34ms` from Lisbon, PT
81.37.152.214	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.38ms` from Madrid, ES
57.135.233.134	AS30404 Blue Stream	`3.80ms` from Miami, US
159.89.32.214	AS14061 DigitalOcean, LLC	`0.23ms` from New York City, US
15.236.248.230	AS16509 Amazon.com, Inc.	`0.13ms` from Paris, FR
148.210.70.6	AS2904 Universidad Autonoma De Ciudad Juarez	`10.16ms` from Phoenix, US
75.147.130.182	AS7922 Comcast Cable Communications, LLC	`6.58ms` from Santa Clara, US
122.112.226.214	AS55990 Huawei Cloud Service data center	`2.64ms` from Shanghai, CN
13.51.243.102	AS16509 Amazon.com, Inc.	`0.16ms` from Stockholm, SE
94.242.236.22	AS7979 Servers.com, Inc.	`0.14ms` from Amsterdam, NL
97.184.233.230	AS6167 Verizon Business	`13.44ms` from Chicago, US
50.193.75.6	AS7922 Comcast Cable Communications, LLC	`6.29ms` from Chicago, US
98.28.24.134	AS10796 Charter Communications Inc	`8.50ms` from Columbus, US
18.167.172.22	AS16509 Amazon.com, Inc.	`0.12ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -f4 145.97.22.1

traceroute to 145.97.22.1 (145.97.22.1): 64 hops max, 52 byte packets

4 [] 185.1.160.38 0.57 ms

5 [AS1103] 145.145.14.20 0.716 ms

6 [AS1103] 145.145.14.21 0.632 ms

7 [AS1103] 145.97.22.1 0.587 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On December 6th 2025

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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