81.173.0.0/22

AS50522 · Sewan Nederland B.V.

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Summary

Country	Netherlands
Domain	sewan.nl
ASN	AS50522
Registry	RIPE
ID	NL-POCOS-20030219

WHOIS Details

inetnum:        81.173.0.0 - 81.173.3.255
netname:        NL-POCOS-20030219
country:        NL
org:            ORG-PB32-RIPE
admin-c:        POCO
tech-c:         POCO
status:         ALLOCATED PA
mnt-by:         POCOS-MNT
mnt-by:         RIPE-NCC-HM-MNT
created:        2019-12-19T11:47:11Z
last-modified:  2019-12-19T11:47:11Z
source:         RIPE
abuse-email:    abuse@sewan.nl
abuse-c:        POCO
abuse-org:      ORG-PB32-RIPE

organisation:   ORG-PB32-RIPE
org-name:       Sewan Nederland B.V.
country:        NL
org-type:       LIR
address:        Science Park 5218
address:        5692 EG
address:        Son en Breugel
address:        NETHERLANDS
phone:          +31880100700
fax-no:         +31880100799
e-mail:         ncc@sewan.nl
admin-c:        POCO
admin-c:        POCO
abuse-c:        POCO
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        POCOS-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         POCOS-MNT
created:        2010-01-15T13:31:04Z
last-modified:  2025-04-11T13:54:52Z
source:         RIPE
abuse-email:    abuse@sewan.nl
abuse-c:        POCO
abuse-org:      undefined

role:           Sewan NL NOC
address:        Sewan Nederland bv
address:        Science Park Eindhoven 5218
address:        5692 EG
address:        Son en Breugel
address:        Netherlands
phone:          +31 88 0100700
fax-no:         +31 88 0100799
e-mail:         noc@sewan.nl
abuse-mailbox:  abuse@sewan.nl
admin-c:        SVZ58-RIPE
admin-c:        SH16106-RIPE
tech-c:         SVZ58-RIPE
tech-c:         SH16106-RIPE
nic-hdl:        POCO
mnt-by:         POCOS-MNT
created:        2011-08-14T20:28:50Z
last-modified:  2025-04-11T13:52:52Z
source:         RIPE

route:          81.173.0.0/22
origin:         AS50522
mnt-by:         POCOS-MNT
created:        2019-12-19T12:47:17Z
last-modified:  2019-12-19T12:47:17Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 81.173.0.0/16

Range	ASN	Company	Num of IPs
81.173.128.0/17	AS8422	NetCologne Gesellschaft fur Telekommunikation mbH	32,768
81.173.104.0/21	AS12956	TELEFONICA GLOBAL SOLUTIONS SL	2,048
81.173.32.0/22	AS50522	Sewan Nederland B.V.	1,024
81.173.96.0/22	AS50522	Sewan Nederland B.V.	1,024
81.173.44.0/22	AS51942	EK-Media B.V.	1,024
81.173.12.0/22	AS56410	Leeson Telecom Holdings Ltd	1,024
81.173.112.0/22	AS8560	IONOS SE	1,024
81.173.84.0/22	AS47692	METANET AG	1,024
81.173.36.0/22	AS200583	TINEXTA INFOCERT S.p.A	1,024
81.173.40.0/23	AS198731	Prisco Electronica S.L.	512
81.173.28.0/24	AS4134	China Telecom (Europe) Ltd.	256
81.173.7.0/24	AS50522	Sewan Nederland B.V.	256
81.173.22.0/24	AS4134	China Telecom (Europe) Ltd.	256
81.173.11.0/24	AS199391	One System Integration LTD	256
81.173.80.0/24	AS211864	Nessus GmbH	256
81.173.124.0/24	AS24730	Garnier Projects BV	256
81.173.4.0/24	AS24730	Garnier Projects BV	256
81.173.18.0/24	AS4134	China Telecom (Europe) Ltd.	256
81.173.19.0/24	AS4134	China Telecom (Europe) Ltd.	256
81.173.20.0/24	AS4134	China Telecom (Europe) Ltd.	256
81.173.21.0/24	AS4134	China Telecom (Europe) Ltd.	256
81.173.6.0/24	AS12329	GLASFASER RUHR GmbH & Co. KG	256
81.173.23.0/24	AS4134	China Telecom (Europe) Ltd.	256

Hosted domains

There are 22 domain names hosted across 8 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
81.173.1.110	triplevoip.nl	12
81.173.1.108	serverpunt.nl	4
81.173.2.204	abchekwerk-brabant.nl	1
81.173.2.0	jordnl.com	1
81.173.2.157	schoenmakers-verhuur.nl	1
81.173.3.62	botwiz.link	1
81.173.2.101	netconnect.nl	1
81.173.2.104	print-desk.nl	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

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

IP Address	ASN	Details
81.173.3.217	AS50522 Sewan Nederland B.V.	`1.06ms` from Amsterdam, NL
81.173.2.84	AS50522 Sewan Nederland B.V.	`0.72ms` from Amsterdam, NL
81.173.1.193	AS50522 Sewan Nederland B.V.	`0.65ms` from Amsterdam, NL
81.173.0.35	AS50522 Sewan Nederland B.V.	`0.58ms` 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
104.85.4.198	AS16625 Akamai Technologies, Inc.	`0.37ms` from Amsterdam, NL
103.252.249.182	AS4837 CHINA UNICOM China169 Backbone	`7.54ms` from Beijing, CN
2.110.34.150	AS3292 TDC Holding A/S	`9.04ms` from Copenhagen, DK
4.223.73.166	AS8075 Microsoft Corporation	`0.15ms` from Gaevle, SE
203.189.199.150	AS58519 Cloud Computing Corporation	`0.26ms` from Guiyang, CN
81.106.42.182	AS5089 Virgin Media Limited	`4.21ms` from London, GB
107.163.186.150	AS18978 Enzu Inc	`0.63ms` from Los Angeles, US
37.193.182.214	AS31200 Novotelecom Ltd	`1.38ms` from Novosibirsk, RU
91.105.94.246	AS12578 SIA Tet	`3.49ms` from Riga, LV
211.185.216.214	AS4766 Korea Telecom	`3.40ms` from Seoul, KR
188.169.195.134	AS35805 JSC "Silknet"	`3.15ms` from Tbilisi, GE
153.125.141.102	AS7684 SAKURA Internet Inc.	`16.42ms` from Tokyo, JP
133.125.2.6	AS7684 SAKURA Internet Inc.	`16.38ms` from Tokyo, JP
141.136.202.182	AS13046 Hrvatski Telekom d.d.	`6.21ms` from Zagreb, HR
71.28.253.134	AS7029 Windstream Communications LLC	`5.72ms` from Atlanta, US
76.145.238.182	AS7922 Comcast Cable Communications, LLC	`3.97ms` from Atlanta, US
73.182.226.70	AS7922 Comcast Cable Communications, LLC	`11.54ms` from Boston, US
104.207.179.6	AS19701 Yodlee Inc.	`2.38ms` from Dallas, US
156.250.49.6	AS9294 GNET INC.	`0.88ms` from Hong Kong, HK
96.76.190.134	AS7922 Comcast Cable Communications, LLC	`7.98ms` from Houston, US
77.245.79.70	AS20860 IOMART CLOUD SERVICES LIMITED	`0.75ms` from London, GB
34.94.103.150	AS396982 Google LLC	`0.09ms` from Los Angeles, US
93.213.203.22	AS3320 Deutsche Telekom AG	`5.42ms` from Nuernberg, DE
34.97.155.230	AS396982 Google LLC	`0.11ms` from Osaka, JP
69.141.249.22	AS7922 Comcast Cable Communications, LLC	`9.24ms` from Piscataway, US

Traceroute

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

traceroute -a -n -q1 -f3 81.173.2.238

traceroute to 81.173.2.238 (81.173.2.238): 64 hops max, 52 byte packets

3 [] 185.1.222.85 1.159 ms

4 [AS50522] 81.173.74.66 1.764 ms

5 [AS50522] 81.173.2.238 1.407 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On November 14th 2025

What are IP address ranges?

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