171.23.128.0/17

AS21331 · Oslo kommune, Utviklings- og kompetanseetaten

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Summary

Country	Norway
Domain	oslo.kommune.no
ASN	AS21331
Parent Range	171.23.0.0/16
Registry	RIPE
ID	OKDN-NO

WHOIS Details

inetnum:        171.23.0.0 - 171.23.255.255
netname:        OKDN-NO
descr:          The Municipality of Oslo / Oslo kommune
country:        NO
admin-c:        OKDN1-RIPE
tech-c:         OKDN1-RIPE
status:         LEGACY
notify:         support@uke.oslo.kommune.no
abuse-c:        OA2583-RIPE
notify:         hostmaster@oslo.kommune.no
mnt-by:         OKDN-MNT
created:        2001-11-21T20:40:01Z
last-modified:  2019-12-04T13:04:19Z
source:         RIPE
abuse-email:    support@uke.oslo.kommune.no
abuse-c:        OA2583-RIPE
abuse-org:      ORG-IANA1-RIPE

role:           OKDN Admin
address:        Oslo kommune
address:        Utviklings- og kompetanseetaten
address:        StrÃ¸msveien 102
address:        P.O. Box 6538 - Etterstad
address:        N-0606 Oslo
address:        Norway
phone:          +47 23 49 15 00
fax-no:         +47 23 49 15 20
e-mail:         support@uke.oslo.kommune.no
admin-c:        KM182-RIPE
tech-c:         KM182-RIPE
tech-c:         OSLO1-RIPE
notify:         support@uke.oslo.kommune.no
notify:         hostmaster@oslo.kommune.no
nic-hdl:        OKDN1-RIPE
mnt-by:         OKDN-MNT
created:        2004-01-22T10:18:45Z
last-modified:  2015-05-13T08:52:46Z
source:         RIPE

route:          171.23.0.0/16
descr:          NO-OKDN
origin:         AS21331
mnt-by:         OKDN-MNT
created:        2001-11-21T20:59:37Z
last-modified:  2001-11-21T20:59:37Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 171.23.128.0/17

Range	ASN	Company	Num of IPs
171.23.0.0/16	AS21331	The Municipality of Oslo / Oslo kommune	65,536

Nearby Ranges

BGP prefixes that overlap with 171.23.0.0/16

Range	ASN	Company	Num of IPs
171.23.0.0/16	AS21331	The Municipality of Oslo / Oslo kommune	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

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

IP Address	ASN	Details
171.23.128.3	AS21331 Oslo kommune, Utviklings- og kompetanseetaten	`1.00ms` from Oslo, NO
171.23.141.30	AS21331 Oslo kommune, Utviklings- og kompetanseetaten	`2.81ms` from Sandefjord, NO

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
5.195.33.1	AS5384 Emirates Internet	`3.97ms` from Al Fujairah City, AE
180.250.199.225	AS7713 PT Telekomunikasi Indonesia	`7.64ms` from Batam, ID
123.124.117.65	AS4808 China Unicom Beijing Province Network	`3.00ms` from Beijing, CN
122.172.84.1	AS24560 Bharti Airtel Ltd., Telemedia Services	`0.77ms` from Bengaluru, IN
52.38.150.49	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
181.51.61.1	AS10620 Telmex Colombia S.A.	`3.93ms` from Bogota, CO
193.187.63.1	AS31117 ENERGOTEL a.s.	`2.80ms` from Bratislava, SK
95.77.126.1	AS12302 Vodafone Romania S.A.	`7.80ms` from Bucharest, RO
190.7.251.1	AS27881 IPNEXT S.A.	`2.96ms` from Buenos Aires, AR
193.255.155.1	AS8517 National Academic Network and Information Center	`7.47ms` from Bursa, TR
167.7.79.1	AS2939 State of South Carolina	`3.73ms` from Charlotte, US
118.122.28.1	AS4134 CHINANET-BACKBONE	`8.96ms` from Chengdu, CN
50.103.90.1	AS5650 Frontier Communications of America, Inc.	`5.01ms` from Chicago, US
70.119.195.225	AS11427 Charter Communications Inc	`4.61ms` from Dallas, US
71.40.235.113	AS11427 Charter Communications Inc	`4.21ms` from Dallas, US
103.77.252.17	AS63844 One Net Communication Ltd	`0.50ms` from Dhaka, BD
86.42.160.1	AS5466 Eircom Limited	`1.43ms` from Dublin, IE
109.135.0.145	AS5432 Proximus NV	`3.83ms` from Gravelines, FR
27.39.52.1	AS17623 China Unicom Shenzen network	`7.72ms` from Guangzhou, CN
210.34.119.1	AS4538 China Education and Research Network Center	`17.28ms` from Guangzhou, CN
115.204.19.1	AS4134 CHINANET-BACKBONE	`5.30ms` from Hangzhou, CN
218.189.213.129	AS9304 HGC Global Communications Limited	`1.40ms` from Hong Kong, HK
24.94.80.1	AS20001 Charter Communications Inc	`2.65ms` from Honolulu, US
74.5.126.129	AS19901 Brightspeed	`1.93ms` from Houston, US
78.161.234.1	AS9121 Turk Telekomunikasyon Anonim Sirketi	`6.39ms` from Istanbul, TR

Traceroute

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

traceroute -a -n -q1 -f3 -m9 171.23.138.74

traceroute to 171.23.138.74 (171.23.138.74): 9 hops max, 52 byte packets

3 [AS3257] 141.136.105.9 150.306 ms

4 *

5 *

6 [AS3356] 213.242.108.54 201.707 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Detroit, US

On November 14th 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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