91.237.138.0/24

AS34891 · Urzad Miasta Stolecznego Warszawa

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Summary

Country	Poland
Domain	um.warszawa.pl
ASN	AS34891
Parent Range	91.237.138.0/23
Registry	RIPE
ID	UM-WARSZAWA-NET2

WHOIS Details

inetnum:        91.237.138.0 - 91.237.139.255
netname:        UM-Warszawa-NET2
country:        PL
org:            ORG-UMSW1-RIPE
sponsoring-org: ORG-NTS2-RIPE
admin-c:        KS344-RIPE
tech-c:         KS344-RIPE
status:         ASSIGNED PI
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         UMW-MNT
mnt-routes:     UMW-MNT
mnt-domains:    UMW-MNT
created:        2012-03-26T11:23:51Z
last-modified:  2022-09-23T11:46:36Z
source:         RIPE
abuse-email:    abuse@um.warszawa.pl
abuse-c:        OAH22-RIPE
abuse-org:      ORG-NTS2-RIPE

organisation:   ORG-UMSW1-RIPE
org-name:       Urzad Miasta Stolecznego Warszawa
country:        PL
org-type:       OTHER
address:        pl. Bankowy 3/5
address:        00-950 Warsaw
address:        Poland
phone:          +48 22 4433377
e-mail:         kszymanski@um.warszawa.pl
admin-c:        KS344-RIPE
admin-c:        ATMA2-RIPE
tech-c:         ATMA1-RIPE
abuse-c:        OAH22-RIPE
notify:         registry@atm.com.pl
mnt-by:         ATMAN-MNT
mnt-by:         UMWAWA-MNT
mnt-ref:        UMWAWA-MNT
mnt-ref:        ATMAN-MNT
created:        2005-04-25T13:01:45Z
last-modified:  2022-12-01T16:57:21Z
source:         RIPE

person:         Krzysztof Szymanski
address:        Urzad Miasta Stolecznego Warszawa
phone:          +48 22 4433322
nic-hdl:        KS344-RIPE
created:        2009-10-15T08:34:59Z
last-modified:  2017-10-30T22:07:18Z
source:         RIPE
mnt-by:         UMW-MNT

route:          91.237.138.0/23
descr:          Urzad Miasta Stolecznego Warszawa
origin:         AS34891
mnt-by:         UMW-MNT
created:        2012-05-21T09:57:10Z
last-modified:  2012-05-21T09:57:10Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 91.237.138.0/24

Range	ASN	Company	Num of IPs
91.237.138.0/23	AS34891	Urzad Miasta Stolecznego Warszawa	512

Nearby Ranges

BGP prefixes that overlap with 91.237.0.0/16

Range	ASN	Company	Num of IPs
91.237.24.0/22	AS57949	PE Holenishchev Andrii Olexandrovich	1,024
91.237.224.0/22	AS39507	Biznes Swiatlowodem Sp. z o.o.	1,024
91.237.44.0/22	AS3561	Segna Technologies	1,024
91.237.200.0/22	AS52040	LLC MediaKvant	1,024
91.237.244.0/22	AS50392	LLC Campus Networks	1,024
91.237.204.0/22	AS9213	Arden-A Ltd	1,024
91.237.132.0/22	AS3212	Broadband Network Services	1,024
91.237.156.0/22	AS57998	ANFA FAJER Sp.J.	1,024
91.237.236.0/22	AS56624	Rocketnet s.r.o	1,024
91.237.80.0/23	AS57966	INTRATEL Sp. z o.o.	512
91.237.136.0/23	AS201562	ARTUR CICHECKI GLOBNET	512
91.237.160.0/23	AS198327	Global Polska - Tomasz Zaplacinski	512
91.237.38.0/23	AS197732	OLLINK SARL	512
91.237.172.0/23	AS198430	vSolutions Pawel Gruszecki	512
91.237.182.0/23	AS58000	Nikita Sergienko	512
91.237.138.0/23	AS34891	Urzad Miasta Stolecznego Warszawa	512
91.237.34.0/23	AS60717	RSCS AS	512
91.237.54.0/23	AS57988	Foton Company Ltd	512
91.237.114.0/23	AS57981	Kachanovskiy Sergey Sergeevich	512
91.237.154.0/23	AS57998	ANFA FAJER Sp.J.	512
91.237.168.0/23	AS35493	Belnet Snina, s.r.o.	512
91.237.130.0/23	AS58034	AEROPORTUL INTERNATIONAL AVRAM IANCU CLUJ RA	512
91.237.100.0/23	AS61317	CryonHOST GmbH	512
91.237.88.0/23	AS56813	Schlund Technologies GmbH	512
91.237.112.0/23	AS198713	Mickiewicza 14	512
91.237.82.0/23	AS50466	Noutek Ltd	512
91.237.228.0/23	AS39507	Biznes Swiatlowodem Sp. z o.o.	512
91.237.102.0/23	AS15669	BIX.BG Ltd.	512
91.237.16.0/23	AS198090	LIBRA S.R.L.	512
91.237.186.0/23	AS56676	Trytek LLC	512
91.237.98.0/23	AS43513	Sia Nano IT	512
91.237.72.0/23	AS51101	JKP VIDEONET Dziub Jaroslaw	512
91.237.186.0/23	AS44056	Trytek LLC	512
91.237.40.0/23	AS57962	LLC Ug telekom grup	512
91.237.116.0/24	AS209225	VIYAR TECH LLC	256
91.237.51.0/24	AS209012	MULTISOFT LLC	256
91.237.190.0/24	AS198637	ZPUE S.A.	256
91.237.87.0/24	AS208925	Global Tech Distribution s.r.o.	256
91.237.143.0/24	AS207388	Xantho UAB	256
91.237.176.0/24	AS198628	FIDESSA TRADING UK LIMITED	256
91.237.151.0/24	AS206381	Pinja Digital Oy	256
91.237.150.0/24	AS205368	Fnet LLC	256
91.237.37.0/24	AS198615	RBA-Management LLC	256
91.237.105.0/24	AS202656	New Delhi	256
91.237.219.0/24	AS39507	Biznes Swiatlowodem Sp. z o.o.	256
91.237.65.0/24	AS39394	NeoTel Telefonservice GmbH & Co KG	256
91.237.104.0/24	AS202656	Dhaka	256
91.237.96.0/24	AS198606	AMST-Systemtechnik GmbH	256
91.237.52.0/24	AS198414	Hekko VPS Servers	256
91.237.180.0/24	AS39036	SHORO CJSC	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
91.237.138.1	AS34891 Urzad Miasta Stolecznego Warszawa	`0.67ms` from Warsaw, PL

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
86.87.85.72	AS1136 KPN B.V.	`2.19ms` from Amsterdam, NL
186.124.60.40	AS7303 Telecom Argentina S.A.	`16.39ms` from Buenos Aires, AR
122.159.130.184	AS4837 CHINA UNICOM China169 Backbone	`9.33ms` from Harbin, CN
156.250.251.88	AS132839 POWER LINE DATACENTER	`1.13ms` from Hong Kong, HK
211.204.86.104	AS9318 SK Broadband Co Ltd	`1.62ms` from Incheon, KR
192.228.142.8	AS9930 TTNET-MY	`1.87ms` from Kuala Lumpur, MY
90.210.125.40	AS5607 Sky UK Limited	`3.85ms` from London, GB
195.83.107.40	AS2200 Renater	`6.41ms` from Marseille, FR
175.33.33.104	AS4804 Microplex PTY LTD	`3.33ms` from Melbourne, AU
68.168.169.40	AS10242 US Internet Corp	`0.40ms` from Minneapolis, US
110.72.45.168	AS4837 CHINA UNICOM China169 Backbone	`7.63ms` from Nanning, CN
180.199.91.200	AS18126 Chubu Telecommunications Company, Inc.	`4.24ms` from Osaka, JP
181.221.56.152	AS28573 Claro NXT Telecomunicacoes Ltda	`15.68ms` from Rio de Janeiro, BR
52.53.60.40	AS16509 Amazon.com, Inc.	`0.10ms` from San Jose, US
23.33.60.24	AS20940 Akamai International B.V.	`0.12ms` from Santiago de Queretaro, MX
121.131.178.120	AS4766 Korea Telecom	`1.27ms` from Seoul, KR
110.35.142.168	AS9569 SEOCHO CABLE SYSTEMS CO., LTD.	`0.79ms` from Seoul, KR
202.210.132.56	AS4686 BEKKOAME INTERNET INC.	`0.92ms` from Tokyo, JP
197.0.205.8	AS37705 TOPNET	`2.10ms` from Tunis, TN
123.161.20.56	AS4134 CHINANET-BACKBONE	`6.72ms` from Zhengzhou, CN
182.131.216.216	AS4134 CHINANET-BACKBONE	`7.83ms` from Chengdu, CN
24.12.56.88	AS7922 Comcast Cable Communications, LLC	`5.61ms` from Chicago, US
23.203.94.200	AS16625 Akamai Technologies, Inc.	`0.49ms` from Dallas, US
170.94.27.24	AS21852 State Of Arkansas, Division of Information Systems	`9.57ms` from Dallas, US
121.132.0.152	AS4766 Korea Telecom	`1.81ms` from Incheon, KR

Traceroute

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

traceroute -a -n -q1 -f10 91.237.138.132

traceroute to 91.237.138.132 (91.237.138.132): 64 hops max, 52 byte packets

10 [AS29314] 83.143.46.1 1.024 ms

11 *

12 [AS34891] 91.237.138.132 11.34 ms

Measurement taken from

IPinfo ProbeNet in Warsaw, PL

On January 30th 2026

What are IP address ranges?

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