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
217.28.82.7 AS51800 FIBER Network s.r.o. 0.48ms from Prague, CZ
2a02:28a8:416::38 AS51800 FIBER Network s.r.o. 0.41ms from Prague, CZ
2a02:28a8:0:501::2 AS51800 FIBER Network s.r.o. 0.31ms from Prague, CZ
2a02:28a8:f1c:3181::2 AS51800 FIBER Network s.r.o. 0.93ms from Prague, CZ
217.28.84.57 AS51800 FIBER Network s.r.o. 0.36ms from Prague, CZ
217.28.81.213 AS51800 FIBER Network s.r.o. 0.35ms from Prague, CZ
217.28.80.46 AS51800 FIBER Network s.r.o. 0.28ms from Prague, CZ
2a02:28a8:ffff:3801::2 AS51800 FIBER Network s.r.o. 0.31ms 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
35.91.255.184 AS16509 Amazon.com, Inc. 0.52ms from Boardman, US
73.149.78.200 AS7922 Comcast Cable Communications, LLC 3.06ms from Boston, US
104.231.48.232 AS10796 Charter Communications Inc 15.53ms from Cleveland, US
173.217.164.136 AS19108 Optimum 13.99ms from Dallas, US
54.154.76.136 AS16509 Amazon.com, Inc. 0.27ms from Dublin, IE
192.225.237.56 AS22552 eSited Solutions 0.29ms from Los Angeles, US
47.207.26.40 AS5650 Frontier Communications of America, Inc. 5.62ms from Miami, US
13.208.181.168 AS16509 Amazon.com, Inc. 0.31ms from Osaka, JP
122.248.72.88 AS7522 STNet, Incorporated 4.26ms from Osaka, JP
52.140.45.8 AS8075 Microsoft Corporation 0.30ms from Saint Thomas Mount, IN
210.126.73.216 AS4766 Korea Telecom 4.51ms from Seoul, KR
112.177.209.232 AS4766 Korea Telecom 1.60ms from Seoul, KR
4.216.67.8 AS8075 Microsoft Corporation 0.54ms from Tokyo, JP
43.130.124.88 AS132203 Tencent Building, Kejizhongyi Avenue 0.38ms from Ashburn, US
68.101.85.216 AS22773 Cox Communications Inc. 10.73ms from Atlanta, US
52.25.188.40 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
211.91.255.168 AS4837 CHINA UNICOM China169 Backbone 2.26ms from Changsha, CN
223.226.201.40 AS24560 Bharti Airtel Ltd., Telemedia Services 9.90ms from Delhi, IN
36.63.90.216 AS4134 CHINANET-BACKBONE 8.50ms from Huai'an, CN
112.172.44.152 AS4766 Korea Telecom 0.67ms from Incheon, KR
1.230.161.88 AS9318 SK Broadband Co Ltd 0.82ms from Incheon, KR
119.12.143.56 AS34779 T-2, d.o.o. 1.51ms from Ljubljana, SI
23.49.174.24 AS16625 Akamai Technologies, Inc. 0.17ms from London, GB
88.9.27.56 AS3352 TELEFONICA DE ESPANA S.A.U. 8.84ms from Madrid, ES
46.61.203.200 AS12389 PJSC Rostelecom 5.88ms from Moscow, RU

Traceroute

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

$
traceroute -a -n -q1 -f2 217.28.84.73
traceroute to 217.28.84.73 (217.28.84.73): 64 hops max, 52 byte packets
2 [AS29134] 217.31.48.15 0.363 ms
3 [AS51800] 217.28.84.73 0.394 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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