Autonomous System details

AS51800

FIBER Network s.r.o.  ·  fiber.cz

Czechia

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AS51800 – FIBER Network s.r.o.

Field Value
Country Czechia
Website fiber.cz
Hosted domains 37
IPv4 addresses 2,048
IPv6 addresses 79,228,162,514,264,337,593,543,950,336
ASN type ISP
Registry ripe
Allocated 15 years ago on Nov 05, 2010
Updated 6 years ago on Mar 27, 2020

IP Ranges

Netblock Company Num of IPs
217.28.80.0/21 FIBER Networks customers 2,048
Netblock Company
2a02:28a8::/32 FIBER Network s.r.o.
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WHOIS Details

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                                                ASHandle:       AS51800
                                                OrgID:          AS51800
                                                ASName:         AS51800
                                                ASNumber:       AS51800
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 37 domain names hosted across 15 IP addresses on this ASN.

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IP Address Domain Domains on this IP
217.28.81.67 ██████████ 7
217.28.81.68 ██████████ 6
217.28.82.23 ██████████ 6
217.28.80.23 ██████████ 4
217.28.80.2 ██████████ 3
217.28.84.4 ██████████ 2
217.28.84.6 █████████ 1
217.28.82.85 █████████ 1
217.28.84.38 ███████ 1
217.28.84.5 █████████ 1

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Peers

There are 25 peers for this ASN.

Peers Name
AS14840 BR.Digital Telecom
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS198150 SIACOM JSC
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS22356 Durand do Brasil Ltda
AS24482 SG.GS
AS263444 Open X Tecnologia Ltda
AS29504 Freenet Liberec, z.s.
AS32590 Valve Corporation
AS36236 NetActuate, Inc
AS39120 Convergenze S.p.A.
AS40994 Hohl IT e.U.
AS42000 Futruy s.r.o.
AS4455 IX Reach Ltd
AS49025 PRO-ZETA a.s.
AS49544 i3D.net B.V
AS51400 SPOJE.NET s.r.o.
AS53062 ALT | GRUPO BRASIL TECPAR
AS5405 Inter.link GmbH
AS57463 NetIX Communications JSC
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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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS49025 PRO-ZETA a.s.
AS51400 SPOJE.NET s.r.o.
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Downstreams

There is 1 peer for this ASN.

Downstreams Name
AS51400 SPOJE.NET s.r.o.
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ASN API & Database

Pingable IPs

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

IP Address ASN Details
217.28.84.77 AS51800 FIBER Network s.r.o. 0.37ms from Prague, CZ
2a02:28a8:0:501::2 AS51800 FIBER Network s.r.o. 0.33ms from Prague, CZ
217.28.80.46 AS51800 FIBER Network s.r.o. 0.32ms from Prague, CZ
2a02:28a8:416::38 AS51800 FIBER Network s.r.o. 0.45ms from Prague, CZ
2a02:28a8:f1c:3181::2 AS51800 FIBER Network s.r.o. 1.20ms from Prague, CZ
217.28.82.7 AS51800 FIBER Network s.r.o. 0.49ms from Prague, CZ
217.28.81.6 AS51800 FIBER Network s.r.o. 0.35ms from Prague, CZ
2a02:28a8:ffff:3801::2 AS51800 FIBER Network s.r.o. 0.34ms 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
76.49.203.152 AS11426 Charter Communications Inc 16.71ms from Charlotte, US
87.106.106.56 AS8560 IONOS SE 5.95ms from Frankfurt am Main, DE
115.76.121.248 AS7552 Viettel Group 4.59ms from Ho Chi Minh City, VN
154.220.49.72 AS132839 POWER LINE DATACENTER 0.61ms from Hong Kong, HK
13.40.220.232 AS16509 Amazon.com, Inc. 0.67ms from London, GB
82.45.42.216 AS5089 Virgin Media Limited 12.05ms from London, GB
119.45.15.136 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.13ms from Nanjing, CN
123.221.42.24 AS4713 NTT DOCOMO BUSINESS,Inc. 5.42ms from Osaka, JP
88.127.53.152 AS12322 Free SAS 7.04ms from Paris, FR
81.49.218.232 AS3215 Orange S.A. 4.81ms from Paris, FR
201.175.49.40 AS262437 InNET Ponto Com Ltda. 14.72ms from Sao Paulo, BR
110.149.129.152 AS1221 Telstra Limited 5.92ms from Sydney, AU
31.160.243.136 AS1136 KPN B.V. 0.42ms from Amsterdam, NL
68.44.107.136 AS7922 Comcast Cable Communications, LLC 14.34ms from Chicago, US
154.195.82.24 AS9294 GNET INC. 0.86ms from Hong Kong, HK
72.180.139.184 AS11427 Charter Communications Inc 12.40ms from Houston, US
160.119.33.8 AS327804 Municipal Network Services 0.44ms from Johannesburg, ZA
87.2.206.200 AS3269 Telecom Italia S.p.A. 1.63ms from Milan, IT
5.53.126.56 AS50340 JSC Selectel 0.65ms from Moscow, RU
112.80.120.8 AS4837 CHINA UNICOM China169 Backbone 6.16ms from Nanjing, CN
34.204.27.200 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
181.221.47.216 AS28573 Claro NXT Telecomunicacoes Ltda 8.02ms from Rio de Janeiro, BR
61.255.38.216 AS9318 SK Broadband Co Ltd 2.11ms from Seoul, KR
126.221.152.216 AS17676 SoftBank Corp. 3.10ms from Tokyo, JP
65.94.48.88 AS577 Bell Canada 8.88ms from Toronto, CA

Traceroute

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

$
traceroute -a -n -q1 -f2 217.28.81.105
traceroute to 217.28.81.105 (217.28.81.105): 64 hops max, 52 byte packets
2 [AS29134] 217.31.48.15 0.335 ms
Measurement taken from IPinfo ProbeNet in Prague, CZ
On

Related Networks

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 AS51800 at robtex.

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