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 38
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 38 domain names hosted across 16 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 ██████████ 7
217.28.82.23 ██████████ 6
217.28.80.23 ██████████ 4
217.28.80.2 █████████ 3
217.28.84.4 ██████████ 2
217.28.82.9 ██████████ 1
217.28.82.70 ██████████ 1
217.28.81.66 ██████████ 1
217.28.84.38 ███████ 1

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Peers

There are 22 peers for this ASN.

Peers Name
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS198150 SIACOM JSC
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
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.
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:ffff:3801::2 AS51800 FIBER Network s.r.o. 0.29ms from Prague, CZ
2a02:28a8:416::38 AS51800 FIBER Network s.r.o. 0.72ms from Prague, CZ
2a02:28a8:f1c:3181::1 AS51800 FIBER Network s.r.o. 0.83ms from Prague, CZ
2a02:28a8:0:501::2 AS51800 FIBER Network s.r.o. 0.32ms from Prague, CZ
217.28.84.65 AS51800 FIBER Network s.r.o. 0.35ms from Prague, CZ
217.28.81.17 AS51800 FIBER Network s.r.o. 0.35ms from Prague, CZ
217.28.80.46 AS51800 FIBER Network s.r.o. 0.30ms from Prague, CZ
217.28.82.56 AS51800 FIBER Network s.r.o. 0.52ms 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
136.58.114.152 AS16591 Google Fiber Inc. 7.07ms from Atlanta, US
101.22.121.216 AS4837 CHINA UNICOM China169 Backbone 6.30ms from Beijing, CN
178.116.20.56 AS6848 Telenet BV 7.06ms from Brussels, BE
23.6.127.104 AS16625 Akamai Technologies, Inc. 0.27ms from Chicago, US
192.210.210.8 AS36352 HostPapa 0.27ms from Chicago, US
20.12.238.120 AS8075 Microsoft Corporation 0.17ms from Des Moines, US
51.187.150.152 AS5607 Sky UK Limited 1.42ms from Dublin, IE
208.189.135.8 AS7018 AT&T Enterprises, LLC 1.40ms from Houston, US
119.12.143.56 AS34779 T-2, d.o.o. 1.45ms from Ljubljana, SI
90.200.254.136 AS5607 Sky UK Limited 3.88ms from London, GB
46.61.203.200 AS12389 PJSC Rostelecom 5.79ms from Moscow, RU
210.235.99.136 AS2516 KDDI CORPORATION 1.52ms from Osaka, JP
65.76.7.232 AS21928 T-Mobile USA, Inc. 19.10ms from Seattle, US
49.58.105.248 AS4766 Korea Telecom 1.99ms from Seoul, KR
87.249.216.248 AS41925 Limited Liability Company Izet Telecom Ural 3.19ms from Yekaterinburg, RU
52.1.238.104 AS14618 Amazon.com, Inc. 0.51ms from Ashburn, US
115.99.249.152 AS17488 Hathway IP Over Cable Internet 1.11ms from Bengaluru, IN
217.117.32.24 AS12942 Network Research Belgium S.A. 1.61ms from Brussels, BE
197.121.196.216 AS36992 ETISALAT MISR 13.72ms from Cairo, EG
52.15.170.8 AS16509 Amazon.com, Inc. 0.17ms from Columbus, US
63.171.2.24 AS174 Cogent Communications, LLC 1.26ms from Dallas, US
52.180.156.152 AS8075 Microsoft Corporation 0.19ms from Des Moines, US
14.231.242.8 AS45899 VNPT Corp 1.25ms from Hanoi, VN
2.223.128.72 AS5607 Sky UK Limited 11.22ms from London, GB
64.148.158.200 AS7018 AT&T Enterprises, LLC 1.80ms from Los Angeles, US

Traceroute

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

$
traceroute -a -n -q1 -f3 217.28.82.56
traceroute to 217.28.82.56 (217.28.82.56): 64 hops max, 52 byte packets
3 [] 91.210.16.91 0.406 ms
4 *
5 *
6 [AS51800] 217.28.82.56 0.588 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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