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
217.28.82.23 ██████ 6
217.28.81.68 █████████ 6
217.28.80.23 ██████████ 4
217.28.80.2 █████████ 3
217.28.84.4 ██████████ 2
217.28.82.51 ████████ 1
217.28.84.6 █████████ 1
217.28.84.38 ███████ 1
217.28.82.70 ██████████ 1

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Peers

There are 16 peers for this ASN.

Peers Name
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS24482 SG.GS
AS29504 Freenet Liberec, z.s.
AS32590 Valve Corporation
AS36236 NetActuate, Inc
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.
AS6663 Euroweb Romania S.R.L.
AS6881 NIX.CZ z.s.p.o.
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
2a02:28a8:416::38 AS51800 FIBER Network s.r.o. 0.61ms from Prague, CZ
2a02:28a8:ffff:3801::2 AS51800 FIBER Network s.r.o. 0.35ms from Prague, CZ
2a02:28a8:f1c:3181::2 AS51800 FIBER Network s.r.o. 1.05ms from Prague, CZ
217.28.80.46 AS51800 FIBER Network s.r.o. 0.30ms from Prague, CZ
217.28.81.213 AS51800 FIBER Network s.r.o. 0.35ms from Prague, CZ
217.28.82.7 AS51800 FIBER Network s.r.o. 0.47ms from Prague, CZ
217.28.84.73 AS51800 FIBER Network 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
207.179.184.40 AS855 Bell Canada 13.59ms from Beauharnois, CA
211.91.255.168 AS4837 CHINA UNICOM China169 Backbone 2.23ms from Changsha, CN
166.163.201.120 AS6167 Verizon Business 16.69ms from Chicago, US
106.35.12.72 AS4134 CHINANET-BACKBONE 3.42ms from Hohhot, CN
47.57.105.216 AS45102 Alibaba (US) Technology Co., Ltd. 1.34ms from Hong Kong, HK
79.78.77.216 AS13285 TalkTalk Communications Limited 3.95ms from London, GB
83.50.101.216 AS3352 TELEFONICA DE ESPANA S.A.U. 8.46ms from Madrid, ES
18.102.184.136 AS16509 Amazon.com, Inc. 0.12ms from Milan, IT
5.49.56.120 AS5410 Bouygues Telecom SA 2.36ms from Paris, FR
44.217.167.232 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
34.231.147.8 AS14618 Amazon.com, Inc. 0.36ms from Reston, US
189.77.6.168 AS26615 TIM S/A 2.67ms from Sao Paulo, BR
46.19.252.168 AS20681 Saxo Bank A/S 9.72ms from Stockholm, SE
105.103.93.104 AS36947 Telecom Algeria 12.65ms from Algiers, DZ
108.142.181.24 AS8075 Microsoft Corporation 0.25ms from Amsterdam, NL
34.55.203.8 AS396982 Google LLC 0.11ms from Council Bluffs, US
46.101.159.24 AS14061 DigitalOcean, LLC 0.26ms from Frankfurt am Main, DE
195.86.72.152 AS984 OCTOPUS WEB SOLUTION INC 0.56ms from Ho Chi Minh City, VN
76.173.178.88 AS20001 Charter Communications Inc 5.28ms from Honolulu, US
18.161.119.152 AS16509 Amazon.com, Inc. 1.05ms from Lohogaon, IN
104.221.187.8 AS22552 eSited Solutions 0.37ms from Los Angeles, US
2.115.159.24 AS3269 Telecom Italia S.p.A. 4.91ms from Milan, IT
37.235.210.88 AS41268 Sesameware FZ-LLC 8.24ms from Moscow, RU
125.115.246.184 AS4134 CHINANET-BACKBONE 1.08ms from Ningbo, CN
112.242.93.88 AS4837 CHINA UNICOM China169 Backbone 7.96ms from Qingdao, CN

Traceroute

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

$
traceroute -a -n -q1 -f2 217.28.80.49
traceroute to 217.28.80.49 (217.28.80.49): 64 hops max, 52 byte packets
2 [] 91.210.16.182 0.359 ms
3 [AS60606] 185.2.42.1 0.414 ms
5 [AS51800] 217.28.80.49 0.828 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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