91.236.182.0/24

AS57920 · UNDERNET ANYCAST

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Summary

Country	Hungary
Domain	atw.co.hu
ASN	AS57920
Registry	RIPE
ID	HU-ATW

WHOIS Details

inetnum:        91.236.182.0 - 91.236.182.255
netname:        HU-ATW
country:        HU
org:            ORG-AIK1-RIPE
admin-c:        ATW-RIPE
tech-c:         ATW-RIPE
status:         ASSIGNED PI
mnt-by:         MNT-ATW
mnt-by:         RIPE-NCC-END-MNT
created:        2025-09-16T11:25:08Z
last-modified:  2025-09-16T11:25:08Z
source:         RIPE
abuse-email:    abuse@atw.co.hu
abuse-c:        ATW-RIPE
abuse-org:      ORG-AIK1-RIPE

organisation:   ORG-AIK1-RIPE
org-name:       ATW Internet Kft.
country:        HU
org-type:       LIR
address:        Esztergomi ut 66
address:        1138
address:        Budapest
address:        HUNGARY
phone:          +3616000289
fax-no:         +3616000329
e-mail:         net-admin@atw.co.hu
admin-c:        GD1779-RIPE
admin-c:        MK2936-RIPE
abuse-c:        ATW-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-ATW
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-ATW
created:        2006-02-17T06:11:11Z
last-modified:  2020-12-16T13:40:43Z
source:         RIPE
abuse-email:    abuse@atw.co.hu
abuse-c:        ATW-RIPE
abuse-org:      undefined

role:           ATW NOC
address:        ATW Internet Kft.
address:        Esztergomi ut 66. fsz 1
address:        H-1138 Budapest
address:        Hungary
e-mail:         noc@atw.co.hu
abuse-mailbox:  abuse@atw.co.hu
phone:          +36 1 60000 35
fax-no:         +36 1 6000 329
tech-c:         MK2936-RIPE
tech-c:         GD1779-RIPE
admin-c:        GD1779-RIPE
admin-c:        MK2936-RIPE
nic-hdl:        ATW-RIPE
mnt-by:         MNT-ATW
created:        2007-09-06T03:52:17Z
last-modified:  2014-02-03T12:40:01Z
source:         RIPE

route:          91.236.182.0/24
descr:          Undernet Anycast
origin:         AS57920
mnt-by:         UT60813-MNT
notify:         anycast@undernet.org
created:        2012-03-14T01:01:09Z
last-modified:  2012-03-14T01:02:08Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 91.236.0.0/16

Range	ASN	Company	Num of IPs
91.236.96.0/22	AS15377	TRADITIONAL LLC	1,024
91.236.196.0/22	AS50340	JSC Selectel	1,024
91.236.172.0/22	AS60831	Arkadia Spolka Cywilna Krysztof Rozmus Barbara Rozmus	1,024
91.236.4.0/22	AS198525	CLIMAXNET	1,024
91.236.48.0/22	AS197482	DoubleGIS LLC	1,024
91.236.148.0/22	AS57803	TeleMontazh Ltd.	1,024
91.236.216.0/22	AS47967	Pro Marketing Central LLC	1,024
91.236.100.0/22	AS57901	Pautina Ltd.	1,024
91.236.248.0/22	AS57944	IP-Connect LLC	1,024
91.236.68.0/22	AS8778	Jan Balaz-Air-Net Elektronik	1,024
91.236.216.0/22	AS2856	Pro Marketing Central LLC	1,024
91.236.40.0/22	AS57904	Vevynet s.r.o.	1,024
91.236.60.0/22	AS198541	INTERCOMTEL Limited Company	1,024
91.236.92.0/22	AS57882	Innotelecom Ltd.	1,024
91.236.32.0/22	AS198537	Kamil Turon trading as KAMNET	1,024
91.236.20.0/23	AS198529	JDS Systems Jacek Dresler	512
91.236.10.0/23	AS31208	Imageprom, Ltd.	512
91.236.26.0/23	AS31727	RIDGEON NETWORK LTD	512
91.236.132.0/23	AS198518	Milichsoft Rafal Miliszewski	512
91.236.30.0/23	AS52022	Klimenko Anna Aleksandrovna	512
91.236.22.0/23	AS58279	Federal State Budgetary Institution All Russia Research Geological Petroleum Institute (FGBU VNIGNI)	512
91.236.14.0/23	AS198546	Nenyus Dmitry Vladasovich	512
91.236.90.0/23	AS6282	SoHo Internet Solutions	512
91.236.214.0/23	AS59685	Van Oord Dredging and Marine Contractors BV	512
91.236.106.0/23	AS57892	StayFriends GmbH	512
91.236.126.0/23	AS57887	FOP Pavlenko Andrey Pavlovich	512
91.236.80.0/23	AS57874	Eurocable LTD	512
91.236.8.0/23	AS57213	FAN-TEX Aleksander Grzegorz HIRSZTRITT	512
91.236.54.0/23	AS50599	DATASPACE P.S.A.	512
91.236.246.0/23	AS57250	Ru.Net Ltd.	512
91.236.168.0/23	AS48715	Sefroyek Pardaz Engineering PJSC	512
91.236.210.0/23	AS49010	Herningsholm Erhvervsskole & Gymnasier S/I	512
91.236.190.0/23	AS39173	SS&C FINANCIAL SERVICES INTERNATIONAL LIMITED	512
91.236.46.0/23	AS41496	TV SAT 2002 SRL	512
91.236.208.0/23	AS12552	j2 Global Sweden AB	512
91.236.202.0/23	AS49784	Netvisit FTTH customers	512
91.236.138.0/23	AS61163	Global Technologies of Ukraine LLC	512
91.236.195.0/24	AS202448	MVPS LTD	256
91.236.88.0/24	AS201909	INTELI TECH DEVELOPMENT SRL	256
91.236.16.0/24	AS198530	Haderslev Kommune	256
91.236.238.0/24	AS199732	TERICOM LLC	256
91.236.137.0/24	AS198891	AIROUTE S.C. Sebastian Wrona, Szymon Wrobel	256
91.236.220.0/24	AS1836	InfoGuard AG	256
91.236.221.0/24	AS198633	JSC UKRAINIAN RAILWAYS	256
91.236.57.0/24	AS198595	Focus Telecom Polska S.A.	256
91.236.223.0/24	AS35490	Clinicilor, Nr. 3-5	256
91.236.232.0/24	AS198591	CLUDO Sp. z o.o	256
91.236.222.0/24	AS3249	Telia Eesti AS	256
91.236.212.0/24	AS198581	EVRY Card Services AB	256
91.236.1.0/24	AS198524	iLOL d.o.o.	256

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

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

IP Address	ASN	Details
91.236.182.156	AS57920 UNDERNET ANYCAST	`0.26ms` from Budapest, HU

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
54.191.49.184	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
77.53.198.40	AS29518 Bredband2 AB	`8.63ms` from Hamburg, DE
88.233.97.40	AS9121 Turk Telekomunikasyon Anonim Sirketi	`2.67ms` from Istanbul, TR
13.43.69.248	AS16509 Amazon.com, Inc.	`0.20ms` from London, GB
45.51.10.152	AS20001 Charter Communications Inc	`4.58ms` from Los Angeles, US
83.48.59.8	AS3352 TELEFONICA DE ESPANA S.A.U.	`2.71ms` from Madrid, ES
180.17.26.120	AS4713 NTT DOCOMO BUSINESS,Inc.	`10.84ms` from Osaka, JP
37.100.231.40	AS1267 WIND TRE S.P.A.	`4.65ms` from Rome, IT
45.63.24.136	AS20473 The Constant Company, LLC	`0.15ms` from Sydney, AU
153.199.93.248	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.98ms` from Tokyo, JP
178.208.93.24	AS216139 Iron Hosting Centre LTD	`0.96ms` from Amsterdam, NL
101.173.129.200	AS1221 Telstra Limited	`4.32ms` from Melbourne, AU
172.110.233.8	AS36374 Stellar Association, LLC	`12.68ms` from Minneapolis, US
185.65.19.104	AS12739 JSC Netline	`2.15ms` from Moscow, RU
185.153.30.120	AS198034 VOIP Telecom SAS	`0.48ms` from Paris, FR
23.20.207.88	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
187.225.135.216	AS8151 UNINET	`3.31ms` from Santiago de Queretaro, MX
221.150.18.24	AS4766 Korea Telecom	`1.14ms` from Seoul, KR
122.51.66.184	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.70ms` from Shanghai, CN
178.118.125.72	AS6848 Telenet BV	`7.86ms` from Brussels, BE
64.88.3.8	AS26463 Macomb Intermediate School District	`10.78ms` from Chicago, US
79.245.208.136	AS3320 Deutsche Telekom AG	`3.15ms` from Duesseldorf, DE
123.166.129.200	AS4134 CHINANET-BACKBONE	`9.12ms` from Harbin, CN
41.246.164.72	AS37457 Telkom SA Ltd.	`17.21ms` from Johannesburg, ZA
84.67.49.168	AS5378 Vodafone Limited	`3.95ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f4 91.236.182.207

traceroute to 91.236.182.207 (91.236.182.207): 64 hops max, 52 byte packets

4 [] 193.188.137.122 0.5 ms

5 [AS41075] 88.151.96.222 0.34 ms

6 *

7 *

8 *

9 [AS57920] 91.236.182.207 0.439 ms

Measurement taken from

IPinfo ProbeNet in Budapest, HU

On January 19th 2026

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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