138.81.128.0/18

AS3303 · Swisscom (Switzerland) Ltd

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Summary

Country	Switzerland
Domain	iso.org
ASN	AS3303
Registry	RIPE
ID	ISO-CS

WHOIS Details

inetnum:        138.81.0.0 - 138.81.255.255
netname:        ISO-CS
descr:          ISO Central Secretariat
descr:          Chemin de Blandonnet 8
descr:          CP 401
descr:          Vernier
descr:          CH-1214
country:        CH
admin-c:        LP10068-RIPE
admin-c:        RA11963-RIPE
admin-c:        SMSM4-RIPE
tech-c:         SMSM4-RIPE
tech-c:         LP10068-RIPE
status:         LEGACY
mnt-by:         ERX-NET-138-81-2024-MNT
mnt-lower:      ERX-NET-138-81-2024-MNT
mnt-routes:     ERX-NET-138-81-MNT
mnt-routes:     CH-UNISOURCE-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2024-10-02T13:27:39Z
source:         RIPE

role:           RIPE ADMIN
address:        Chemin de Blandonnet 8, 1214 Vernier, Geneva
e-mail:         security@iso.org
nic-hdl:        RA11963-RIPE
mnt-by:         ERX-NET-138-81-2024-MNT
created:        2024-10-02T13:24:58Z
last-modified:  2024-10-02T13:24:58Z
source:         RIPE

person:         Jeffrey POULIN
address:        ISO Central Secretariat
address:        Chemin de Blandonnet 8
address:        1214 Vernier, Geneva
phone:          +41227490275
e-mail:         poulin@iso.org
nic-hdl:        LP10068-RIPE
mnt-by:         ERX-NET-138-81-2015MNT
created:        2015-05-05T14:42:50Z
last-modified:  2017-06-27T13:22:53Z
source:         RIPE

person:         Security Manager Security Manager
address:        1, Rue de Varembe
address:        Geneva
address:        CH-1211
address:        CH
phone:          +41 22 749 01 11
e-mail:         security@iso.org
nic-hdl:        SMSM4-RIPE
mnt-by:         RIPE-ERX-MNT
created:        2003-11-10T17:15:40Z
last-modified:  2003-11-10T17:15:40Z
source:         RIPE

route:          138.81.0.0/16
descr:          ISO
descr:          IP-Plus
origin:         AS3303
mnt-by:         CH-UNISOURCE-MNT
created:        2019-03-18T11:29:28Z
last-modified:  2019-03-18T11:29:28Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 138.81.0.0/16

No nearby ranges found.

Hosted domains

There are 8 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
138.81.131.132	iso.ch	4
138.81.131.212	isocat.org	2
138.81.131.113	standardsinfo.net	1
138.81.131.100	wssn.net	1

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

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
69.87.224.130	AS21898 Plant TiftNet, Inc	`13.01ms` from Atlanta, US
73.60.109.178	AS7922 Comcast Cable Communications, LLC	`5.86ms` from Boston, US
90.64.247.34	AS15962 Orange Slovensko a.s.	`0.91ms` from Bratislava, SK
102.100.185.18	AS36925 MEDITELECOM	`19.56ms` from Casablanca, MA
177.39.171.98	AS52768 Alsol Provedor de Internet Ltda	`7.65ms` from Fortaleza, BR
96.43.141.130	AS19969 CyberCloud Professionals LLC	`0.31ms` from Kansas City, US
159.135.48.18	AS32244 Liquid Web, L.L.C	`0.20ms` from Lansing, US
176.248.15.226	AS5607 Sky UK Limited	`1.48ms` from London, GB
47.157.34.2	AS5650 Frontier Communications of America, Inc.	`2.91ms` from Los Angeles, US
84.126.169.66	AS6739 VODAFONE ONO, S.A.	`12.84ms` from Madrid, ES
223.109.212.146	AS56046 China Mobile communications corporation	`1.63ms` from Nanjing, CN
133.1.163.18	AS4730 Osaka University	`1.55ms` from Osaka, JP
52.239.190.34	AS8075 Microsoft Corporation	`0.45ms` from Quebec, CA
196.70.254.130	AS6713 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`2.15ms` from Rabat, MA
13.218.181.18	AS14618 Amazon.com, Inc.	`0.16ms` from Reston, US
95.78.76.226	AS42116 JSC "ER-Telecom Holding"	`11.61ms` from Samara, RU
103.18.172.82	AS55547 WOODSNET-PH	`0.31ms` from Taipei, TW
126.57.204.18	AS17676 SoftBank Corp.	`11.08ms` from Tokyo, JP
211.4.48.2	AS2516 KDDI CORPORATION	`0.79ms` from Tokyo, JP
99.233.49.194	AS812 Rogers Communications Canada Inc.	`5.05ms` from Toronto, CA
84.15.225.226	AS13194 Bite IP Network	`6.61ms` from Vilnius, LT
89.164.105.2	AS13046 Hrvatski Telekom d.d.	`9.27ms` from Zagreb, HR
86.83.222.114	AS1136 KPN B.V.	`3.20ms` from Amsterdam, NL
172.237.171.50	AS63949 Akamai Connected Cloud	`0.25ms` from Ashburn, US
108.194.209.194	AS7018 AT&T Enterprises, LLC	`9.51ms` from Atlanta, US

Traceroute

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

traceroute -a -n -q1 -f2 -m11 138.81.165.122

traceroute to 138.81.165.122 (138.81.165.122): 11 hops max, 52 byte packets

2 [AS3257] 195.72.83.121 6.481 ms

3 [AS3257] 212.115.128.46 3.742 ms

4 [AS3303] 138.187.129.248 4.54 ms

5 [AS3303] 138.187.130.29 10.21 ms

6 [AS3303] 138.187.130.113 13.656 ms

7 [AS3303] 138.187.141.32 11.452 ms

8 [AS3303] 217.193.0.142 15.972 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Zuerich, CH

On February 7th 2026

What are IP address ranges?

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