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
217.28.84.5 █████████ 1
217.28.84.8 ██████████ 1
217.28.84.38 ███████ 1
217.28.82.85 █████████ 1

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Peers

There are 26 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
AS47200 NIX.CZ z.s.p.o.
AS49025 PRO-ZETA a.s.
AS49544 i3D.net B.V
AS51184 Fonira Telekom GmbH
AS51400 SPOJE.NET s.r.o.
AS53062 ALT | GRUPO BRASIL TECPAR
AS5405 Inter.link 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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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
2a02:28a8:0:501::2 AS51800 FIBER Network s.r.o. 0.32ms from Prague, CZ
217.28.80.46 AS51800 FIBER Network s.r.o. 0.30ms from Prague, CZ
2a02:28a8:416::38 AS51800 FIBER Network s.r.o. 0.59ms from Prague, CZ
2a02:28a8:f1c:3181::2 AS51800 FIBER Network s.r.o. 1.20ms from Prague, CZ
217.28.84.74 AS51800 FIBER Network s.r.o. 0.36ms from Prague, CZ
217.28.82.69 AS51800 FIBER Network s.r.o. 0.47ms from Prague, CZ
217.28.81.9 AS51800 FIBER Network s.r.o. 0.35ms from Prague, CZ
2a02:28a8:ffff:3801::2 AS51800 FIBER Network s.r.o. 0.33ms 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
178.231.189.152 AS31615 Odido Netherlands B.V. 7.45ms from Amsterdam, NL
24.237.221.8 AS8047 GENERAL COMMUNICATION, INC. 5.76ms from Anchorage, US
54.146.249.136 AS14618 Amazon.com, Inc. 0.62ms from Ashburn, US
120.12.36.232 AS4837 CHINA UNICOM China169 Backbone 5.80ms from Beijing, CN
20.241.91.8 AS8075 Microsoft Corporation 0.27ms from Chicago, US
216.255.44.200 AS394708 Horizon Telcom Inc. 5.49ms from Columbus, US
185.79.115.56 AS50673 Serverius 1.06ms from Dronten, NL
91.11.250.248 AS3320 Deutsche Telekom AG 4.37ms from Duesseldorf, DE
217.87.94.232 AS3320 Deutsche Telekom AG 5.57ms from Hamburg, DE
58.101.172.104 AS24139 Huashu media&Network Limited 4.82ms from Hangzhou, CN
20.247.0.88 AS8075 Microsoft Corporation 0.62ms from Hong Kong, HK
80.6.83.56 AS5089 Virgin Media Limited 5.23ms from London, GB
83.104.223.40 AS5378 Vodafone Limited 5.35ms from London, GB
38.9.30.88 AS265721 Cable Atlantico SRL 16.95ms from Miami, US
173.24.197.136 AS30036 Mediacom Communications Corp 13.62ms from Minneapolis, US
49.64.171.136 AS4134 CHINANET-BACKBONE 5.46ms from Nanjing, CN
45.5.75.200 AS266082 PowerServ Internet 2.09ms from Novo Hamburgo, BR
122.135.15.248 AS2518 BIGLOBE Inc. 11.76ms from Osaka, JP
187.59.22.152 AS18881 TELEFÔNICA BRASIL S.A 3.24ms from Osasco, BR
58.7.212.248 AS7545 TPG Telecom Limited 1.13ms from Perth, AU
123.134.9.104 AS4837 CHINA UNICOM China169 Backbone 7.52ms from Qingdao, CN
40.99.215.56 AS8075 Microsoft Corporation 1.79ms from Sandefjord, NO
138.121.102.24 AS263775 Intelisis S.A. 5.77ms from Santiago, CL
49.169.166.136 AS17858 LG POWERCOMM 1.67ms from Seoul, KR
125.242.117.136 AS17858 LG POWERCOMM 2.12ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -f2 -m8 217.28.86.18
traceroute to 217.28.86.18 (217.28.86.18): 8 hops max, 52 byte packets
4 [AS38158] 121.100.4.237 19.468 ms
5 [AS38158] 121.100.7.214 31.546 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Denpasar, ID
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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