Autonomous System details

AS20723

AVONET, s.r.o. · avonet.cz

Czechia

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AS20723 – AVONET, s.r.o.

Field	Value
Country	Czechia
Website	avonet.cz
Hosted domains	1,146
IPv4 addresses	16,384
IPv6 addresses	633,825,300,114,114,700,000,000,000,000
ASN type	Hosting
Registry	ripe
Allocated	56 years ago on Jan 01, 1970
Updated	9 months ago on Jul 26, 2025

Netblock	Company	Num of IPs
217.112.160.0/20	AVONET, s.r.o.	4,096
217.115.240.0/20	AVONET, s.r.o.	4,096
79.170.248.0/21	AVONET, s.r.o.	2,048
131.117.208.0/21	AVONET, s.r.o.	2,048
178.20.136.0/21	AVONET, s.r.o.	2,048
185.84.232.0/22	AVONET, s.r.o.	1,024
185.111.96.0/22	ICT NWT s.r.o.	1,024

Netblock	Company
2a00:6500::/29	AVONET, s.r.o.

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WHOIS Details

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                                                ASHandle:       AS20723
                                                OrgID:          AS20723
                                                ASName:         AS20723
                                                ASNumber:       AS20723
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 1,146 domain names hosted across 164 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
217.112.162.40	██████████	281
185.111.97.36	██████████	75
217.115.249.180	██████████	66
217.112.167.50	██████████	61
79.170.251.57	██████████	60
79.170.251.58	██████████	42
79.170.251.50	███████	40
185.111.99.49	██████████	31
79.170.251.40	██████████	31
217.115.249.152	██████████	23

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Peers

There are 27 peers for this ASN.

Peers	Name
AS1239	Cogent Communications, LLC
AS16019	Vodafone Czech Republic a.s.
AS174	Cogent Communications, LLC
AS1764	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS198150	SIACOM JSC
AS204405	Durnet.cz sro
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS24482	SG.GS
AS24940	Hetzner Online GmbH
AS263444	Open X Tecnologia Ltda
AS2852	CESNET z.s.p.o.
AS29504	Freenet Liberec, z.s.
AS30058	FDCservers.net
AS32590	Valve Corporation
AS36236	NetActuate, Inc
AS39120	Convergenze S.p.A.
AS40994	Hohl IT e.U.
AS43733	Viva Armenia CJSC
AS4455	IX Reach Ltd
AS47232	ISP Alliance a.s.
AS49544	i3D.net B.V
AS51184	Fonira Telekom GmbH
AS6204	INTERKVM HOST SRL
AS6663	Euroweb Romania S.R.L.
AS6881	NIX.CZ z.s.p.o.
AS6939	Hurricane Electric LLC
AS8218	Zayo Infrastructure France SA

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ASN API & Database

Upstreams

There are 4 upstreams for this ASN.

upstreams	Name
AS16019	Vodafone Czech Republic a.s.
AS174	Cogent Communications, LLC
AS30058	FDCservers.net
AS47232	ISP Alliance a.s.

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Downstreams

There is 1 peer for this ASN.

Downstreams	Name
AS204405	Durnet.cz sro

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
2a00:6500:282c:2b01::1	AS20723 AVONET, s.r.o.	`5.44ms` from Prague, CZ
217.112.171.142	AS20723 AVONET, s.r.o.	`0.79ms` from Prague, CZ
217.115.252.213	AS20723 AVONET, s.r.o.	`0.29ms` from Prague, CZ
2a00:6500:2839:900:d601:c3ff:fe65:5dff	AS20723 AVONET, s.r.o.	`8.64ms` from Prague, CZ
79.170.255.1	AS20723 AVONET, s.r.o.	`7.94ms` from Prague, CZ
217.115.246.85	AS20723 AVONET, s.r.o.	`0.35ms` from Prague, CZ
217.115.240.121	AS20723 AVONET, s.r.o.	`0.31ms` from Prague, CZ
217.112.168.217	AS20723 AVONET, s.r.o.	`4.76ms` from Prague, CZ
131.117.215.91	AS20723 AVONET, s.r.o.	`4.59ms` from Prague, CZ
2a00:6500:3::402	AS20723 AVONET, s.r.o.	`4.52ms` from Prague, CZ
217.115.251.188	AS20723 AVONET, s.r.o.	`4.70ms` from Prague, CZ
79.170.252.117	AS20723 AVONET, s.r.o.	`0.36ms` from Prague, CZ
2a00:6500:2819:8200::1	AS20723 AVONET, s.r.o.	`7.80ms` from Prague, CZ
217.115.250.126	AS20723 AVONET, s.r.o.	`0.32ms` from Prague, CZ
217.115.243.158	AS20723 AVONET, s.r.o.	`2.46ms` from Prague, CZ
79.170.254.5	AS20723 AVONET, s.r.o.	`0.34ms` from Prague, CZ
217.112.172.198	AS20723 AVONET, s.r.o.	`4.76ms` from Prague, CZ
2a00:6500:2817:8200::1	AS20723 AVONET, s.r.o.	`6.08ms` from Prague, CZ
217.112.166.49	AS20723 AVONET, s.r.o.	`0.33ms` from Prague, CZ
2a00:6505:2:2:265::2	AS20723 AVONET, s.r.o.	`4.71ms` from Prague, CZ
79.170.248.209	AS20723 AVONET, s.r.o.	`0.32ms` from Prague, CZ
2a00:6505:1:1:268::2	AS20723 AVONET, s.r.o.	`4.69ms` from Prague, CZ
178.20.141.113	AS20723 AVONET, s.r.o.	`0.33ms` from Prague, CZ
131.117.210.1	AS20723 AVONET, s.r.o.	`4.79ms` from Prague, CZ
217.112.165.117	AS20723 AVONET, s.r.o.	`0.35ms` from Prague, CZ

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
20.238.151.179	AS8075 Microsoft Corporation	`0.24ms` from Amsterdam, NL
178.89.53.3	AS9198 JSC Kazakhtelecom	`7.75ms` from Astana, KZ
23.127.45.163	AS7018 AT&T Enterprises, LLC	`10.27ms` from Atlanta, US
97.186.199.131	AS6167 Verizon Business	`18.04ms` from Chicago, US
118.69.223.163	AS18403 FPT Telecom Company	`0.27ms` from Hanoi, VN
221.159.61.147	AS4766 Korea Telecom	`4.14ms` from Incheon, KR
81.214.45.3	AS9121 Turk Telekomunikasyon Anonim Sirketi	`10.72ms` from Istanbul, TR
129.208.149.227	AS25019 Saudi Telecom Company JSC	`3.54ms` from Jeddah, SA
125.105.185.83	AS4134 CHINANET BACKBONE	`9.68ms` from Nanchang, CN
183.147.142.51	AS4134 CHINANET BACKBONE	`6.53ms` from Nanchang, CN
126.59.214.99	AS17676 SoftBank Corp.	`2.58ms` from Osaka, JP
112.235.84.67	AS4837 CHINA UNICOM China169 Backbone	`8.16ms` from Qingdao, CN
186.124.47.51	AS7303 Telecom Argentina S.A.	`2.81ms` from Rosario, AR
69.19.225.35	AS14265 TPx Communications	`0.25ms` from Sacramento, US
172.223.215.3	AS20115 Charter Communications LLC	`10.48ms` from Seattle, US
124.221.87.211	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.31ms` from Shanghai, CN
134.119.214.211	AS29066 velia.net Internetdienste GmbH	`0.14ms` from Strasbourg, FR
61.224.40.243	AS3462 Data Communication Business Group	`2.66ms` from Taichung, TW
178.134.56.115	AS35805 JSC Silknet	`5.15ms` from Tbilisi, GE
188.112.55.3	AS42739 Hawe Telekom S.A. in Restructuring	`3.20ms` from Warsaw, PL
173.80.115.35	AS19108 Optimum	`15.98ms` from Ashburn, US
175.3.161.99	AS4134 CHINANET BACKBONE	`9.28ms` from Changsha, CN
71.65.228.179	AS11426 Charter Communications Inc	`10.00ms` from Charlotte, US
116.96.164.227	AS7552 Viettel Group	`4.96ms` from Hanoi, VN
171.233.222.67	AS7552 Viettel Group	`4.01ms` from Ho Chi Minh City, VN

Traceroute

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

traceroute -a -n -q1 -f2 217.115.251.231

traceroute to 217.115.251.231 (217.115.251.231): 64 hops max, 52 byte packets

2 [] 91.210.16.6 1.003 ms

3 [AS20723] 217.112.171.141 5.461 ms

4 [AS20723] 178.20.142.130 4.543 ms

5 [AS20723] 178.20.142.142 4.562 ms

6 *

7 [AS20723] 178.20.142.11 4.968 ms

8 [AS20723] 217.115.251.231 5.197 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On April 13th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS20723 at robtex.

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