145.97.48.0/20

AS1103 · SURF B.V.

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Summary

Country	Netherlands
Domain	rocvantwente.nl
ASN	AS1103
Registry	RIPE
ID	ROCOOST-NET

WHOIS Details

inetnum:        145.97.48.0 - 145.97.63.255
netname:        ROCOOST-NET
descr:          ROC Oost-Nederland
country:        NL
admin-c:        RVTR3-RIPE
tech-c:         RVTR3-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
mnt-by:         SURF-AUTO-MNT
mnt-irt:        irt-SURFcert
notify:         [email protected]
created:        2012-10-31T12:37:05Z
last-modified:  2025-10-02T17:29:26Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

role:           ROC van Twente RIPE contact
address:        Hengelo
address:        The Netherlands
e-mail:         [email protected]
nic-hdl:        RVTR3-RIPE
mnt-by:         SN-LIR-MNT
created:        2024-01-10T08:44:51Z
last-modified:  2024-01-10T08:44:51Z
source:         RIPE

route:          145.97.48.0/20
descr:          ROC Oost-Nederland
origin:         AS1103
mnt-by:         AS1103-MNT
created:        2012-11-06T11:45:57Z
last-modified:  2012-11-06T11:45:57Z
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
145.97.32.0/20	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
145.97.20.0/22	AS1103	SURFnet SURFcloud	1,024

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

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
128.136.230.196	AS13649 Flexential Colorado Corp.	`9.95ms` from Ashburn, US
117.128.127.228	AS56048 China Mobile Communicaitons Corporation	`2.28ms` from Beijing, CN
147.91.4.68	AS13092 Akademska mreza Republike Srbije - AMRES	`10.60ms` from Budapest, HU
100.42.84.4	AS62643 Evertek, Inc	`5.62ms` from Des Moines, US
223.18.143.196	AS9304 HGC Global Communications Limited	`1.33ms` from Hong Kong, HK
95.147.180.228	AS2856 British Telecommunications PLC	`4.29ms` from London, GB
77.224.234.20	AS12430 VODAFONE ESPANA S.A.U.	`10.85ms` from Madrid, ES
15.237.99.4	AS16509 Amazon.com, Inc.	`0.14ms` from Paris, FR
69.253.184.4	AS7922 Comcast Cable Communications, LLC	`6.19ms` from Piscataway, US
73.20.31.196	AS7922 Comcast Cable Communications, LLC	`6.92ms` from Salt Lake City, US
49.236.177.228	AS38690 HyosungITX	`1.09ms` from Seoul, KR
124.254.18.84	AS17964 Beijing Dian-Xin-Tong Network Technologies Co., Ltd.	`4.67ms` from Beijing, CN
92.216.101.116	AS3209 Vodafone GmbH	`13.92ms` from Berlin, DE
197.56.54.228	AS8452 TE-AS	`3.63ms` from Cairo, EG
221.9.199.116	AS4837 CHINA UNICOM China169 Backbone	`7.71ms` from Changchun, CN
174.108.125.148	AS11426 Charter Communications Inc	`6.28ms` from Charlotte, US
125.65.171.4	AS4134 CHINANET-BACKBONE	`5.55ms` from Chengdu, CN
97.127.244.132	AS209 CenturyLink Communications, LLC	`19.78ms` from Chicago, US
3.136.121.100	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
96.16.212.36	AS16625 Akamai Technologies, Inc.	`0.13ms` from Fortaleza, BR
92.27.204.52	AS13285 TalkTalk Communications Limited	`6.68ms` from London, GB
86.16.181.132	AS5089 Virgin Media Limited	`10.24ms` from London, GB
222.134.163.116	AS4837 CHINA UNICOM China169 Backbone	`6.81ms` from Qingdao, CN
189.165.110.196	AS8151 UNINET	`5.33ms` from Santiago de Queretaro, MX
161.248.3.148	AS133458 FPT Smart Cloud Japan Co., Ltd	`1.85ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f3 -m10 145.97.55.254

traceroute to 145.97.55.254 (145.97.55.254): 10 hops max, 52 byte packets

3 [AS1103] 145.145.181.181 139.638 ms

4 [AS1103] 145.145.176.46 141.323 ms

5 [AS1103] 145.145.4.133 139.852 ms

6 *

7 [AS1103] 145.97.68.14 139.733 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Salt Lake City, US

On December 20th 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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