AS number details

AS51800

FIBER Network s.r.o.  ·  fiber.cz

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

AS51800 – FIBER Network s.r.o.

Field Value
Country Czechia
Website fiber.cz
Hosted domains 37
Number of IPv4 2,048
Number of IPv6 79,228,162,514,264,337,593,543,950,336
ASN type ISP
Registry ripe
Allocated 15 years ago on Nov 05, 2010
Updated 5 years ago on Mar 27, 2020
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.
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details


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

                                            
Get this data and more with IPinfo's Whois product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.

Hosted Domains

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

IP Address Domain Domains on this IP
217.28.81.67 ██████████ 7
217.28.81.68 ██████████ 6
217.28.82.23 ██████████ 6
217.28.80.2 ██████████ 5
217.28.80.23 ██████████ 3
217.28.84.4 ██████████ 2
217.28.84.8 ██████████ 1
217.28.84.38 ███████ 1
217.28.82.85 █████████ 1
217.28.82.9 ██████████ 1

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity

Peers

There are 25 peers for this ASN.

Peers Name
AS14840 BR.Digital Provider
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.
AS36236 NetActuate, Inc
AS39120 Convergenze S.p.A.
AS40994 Hohl IT e.U.
AS42000 Futruy s.r.o.
AS43733 Viva Armenia CJSC
AS4455 IX Reach Ltd
AS49025 PRO-ZETA a.s.
AS49544 i3D.net B.V
AS51185 MainStreaming SpA
AS51400 SPOJE.NET s.r.o.
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
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS49025 PRO-ZETA a.s.
AS51400 SPOJE.NET s.r.o.
AS6939 Hurricane Electric LLC
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Downstreams

There is 1 peer for this ASN.

Downstreams Name
AS51400 SPOJE.NET s.r.o.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Pingable IPs

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

IP Address ASN Details
217.28.80.252 AS51800 FIBER Network s.r.o. 0.34ms from Prague, CZ
2a02:28a8:0:501::2 AS51800 FIBER Network s.r.o. 0.32ms from Prague, CZ
217.28.84.42 AS51800 FIBER Network s.r.o. 0.26ms from Prague, CZ
2a02:28a8:f1c:3181::2 AS51800 FIBER Network s.r.o. 1.16ms from Prague, CZ
2a02:28a8:416::38 AS51800 FIBER Network s.r.o. 0.50ms from Prague, CZ
217.28.81.213 AS51800 FIBER Network s.r.o. 0.34ms from Prague, CZ
217.28.82.69 AS51800 FIBER Network s.r.o. 0.48ms from Prague, CZ
2a02:28a8:ffff:3801::2 AS51800 FIBER Network s.r.o. 0.32ms 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
120.5.227.88 AS4837 CHINA UNICOM China169 Backbone 7.41ms from Beijing, CN
113.189.156.152 AS45899 VNPT Corp 4.70ms from Hanoi, VN
68.101.163.248 AS22773 Cox Communications Inc. 7.56ms from Los Angeles, US
178.126.77.104 AS6697 Republican Unitary Telecommunication Enterprise Beltelecom 5.37ms from Minsk, BY
91.165.162.232 AS12322 Free SAS 10.43ms from Paris, FR
52.1.121.56 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
79.166.10.200 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 4.97ms from Athens, GR
94.71.40.200 AS6799 Ote SA (Hellenic Telecommunications Organisation) 2.70ms from Athens, GR
65.184.55.56 AS11426 Charter Communications Inc 18.68ms from Atlanta, US
71.8.59.72 AS20115 Charter Communications LLC 14.29ms from Atlanta, US
54.184.248.24 AS16509 Amazon.com, Inc. 0.19ms from Boardman, US
46.61.203.200 AS12389 PJSC Rostelecom 5.91ms from Moscow, RU
20.19.243.88 AS8075 Microsoft Corporation 0.14ms from Paris, FR
35.153.125.232 AS14618 Amazon.com, Inc. 0.19ms from Reston, US
189.250.210.216 AS8151 UNINET 9.53ms from Santiago de Queretaro, MX
189.189.240.232 AS8151 UNINET 4.19ms from Santiago de Queretaro, MX
52.62.13.8 AS16509 Amazon.com, Inc. 0.11ms from Sydney, AU
220.141.209.200 AS3462 Data Communication Business Group 1.42ms from Taipei, TW
107.172.185.136 AS36352 HostPapa 0.36ms from Ashburn, US
97.166.128.104 AS6167 Verizon Business 13.55ms from Atlanta, US
198.74.52.56 AS63949 Akamai Connected Cloud 0.36ms from Atlanta, US
221.196.46.232 AS4837 CHINA UNICOM China169 Backbone 5.54ms from Beijing, CN
135.237.139.24 AS8075 Microsoft Corporation 0.42ms from Boydton, US
192.146.148.184 AS400730 Spartanburg County 2.14ms from Charlotte, US
97.150.44.184 AS6167 Verizon Business 13.81ms from Dallas, 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 -m8 217.28.86.201
traceroute to 217.28.86.201 (217.28.86.201): 8 hops max, 52 byte packets
3 [AS60068] 185.229.188.4 10.028 ms
4 [AS13194] 185.0.21.49 15.579 ms
5 [AS49025] 95.173.208.33 15.675 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Zuerich, CH
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.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs