Autonomous System details

AS203821

IT4 Polska Sp. z o.o.  ·  it4polska.pl

Poland

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

Sign up for free ›

AS203821 – IT4 Polska Sp. z o.o.

Field Value
Country Poland
Website it4polska.pl
Hosted domains 22
IPv4 addresses 768
IPv6 addresses 0
ASN type ISP
Registry ripe
Allocated 10 years ago on Oct 23, 2015
Updated 5 years ago on Nov 16, 2020

IP Ranges

Netblock Company Num of IPs
91.207.184.0/24 Sylwester Harasim 256
91.207.185.0/24 Sylwester Harasim 256
217.28.134.0/24 Enformatel Sp. z o.o. 256

There are no known IPv6 addresses belonging to this network

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

Join for free to view WHOIS details › 

                                                ASHandle:       AS203821
                                                OrgID:          AS203821
                                                ASName:         AS203821
                                                ASNumber:       AS203821
                                                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.
IP WHOIS API & Database

Hosted Domains

There are 22 domain names hosted across 13 IP addresses on this ASN.

Join for free to explore hosted domains ›
IP Address Domain Domains on this IP
91.207.184.157 ██████████ 5
217.28.134.45 ██████████ 4
91.207.184.42 █████████ 2
217.28.134.1 ██████████ 2
91.207.184.152 ██████████ 1
91.207.185.19 ██████████ 1
91.207.184.35 ██████████ 1
91.207.184.77 ██████████ 1
217.28.134.76 ███████ 1
91.207.184.146 ████████ 1

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

Peers

There are 4 peers for this ASN.

Peers Name
AS201054 Stowarzyszenie e-Poludnie
AS51465 FIXMAP GROUP
AS57608 DG-NET SA
AS62081 Stowarzyszenie e-Poludnie
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS51465 FIXMAP GROUP
AS57608 DG-NET SA
AS62081 Stowarzyszenie e-Poludnie
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Downstreams

There are no downstreams for this ASN.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Pingable IPs

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

IP Address ASN Details
217.28.134.60 AS203821 IT4 Polska Sp. z o.o. 2.41ms from Warsaw, PL
91.207.184.189 AS203821 IT4 Polska Sp. z o.o. 2.17ms from Warsaw, PL
91.207.185.25 AS203821 IT4 Polska Sp. z o.o. 2.23ms from Warsaw, PL

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
149.56.150.221 AS16276 OVH SAS 0.09ms from Beauharnois, CA
20.122.250.109 AS8075 Microsoft Corporation 0.30ms from Boydton, US
78.92.84.157 AS5483 Magyar Telekom Plc. 6.87ms from Budapest, HU
154.176.32.29 AS8452 TE-AS 3.46ms from Cairo, EG
209.122.157.93 AS6079 RCN 15.29ms from Chicago, US
138.99.195.29 AS11835 NOVAFIBRA 1.53ms from Curitiba, BR
214.17.99.141 AS5972 United States Department of Defense (DoD) 10.73ms from Dallas, US
40.113.232.221 AS8075 Microsoft Corporation 0.35ms from Des Moines, US
174.3.6.93 AS6327 Shaw Communications 6.30ms from Edmonton, CA
91.51.18.221 AS3320 Deutsche Telekom AG 8.85ms from Frankfurt am Main, DE
122.229.139.141 AS4134 CHINANET-BACKBONE 4.03ms from Hangzhou, CN
112.167.160.157 AS4766 Korea Telecom 2.95ms from Incheon, KR
34.35.57.125 AS396982 Google LLC 0.11ms from Johannesburg, ZA
95.62.97.237 AS12430 VODAFONE ESPANA S.A.U. 13.76ms from Madrid, ES
56.155.84.141 AS16509 Amazon.com, Inc. 0.64ms from Osaka, JP
92.202.6.141 AS2527 Sony Network Communications Inc. 1.93ms from Osaka, JP
218.228.72.93 AS9614 Oita Cable Telecom Co,ltd. 12.11ms from Osaka, JP
107.3.98.13 AS7922 Comcast Cable Communications, LLC 6.74ms from Salt Lake City, US
35.78.193.45 AS16509 Amazon.com, Inc. 1.16ms from Tokyo, JP
42.146.126.237 AS9824 JCOM Co., Ltd. 9.77ms from Tokyo, JP
27.31.145.253 AS4134 CHINANET-BACKBONE 4.56ms from Wuhan, CN
71.114.40.141 AS701 Verizon Business 2.96ms from Ashburn, US
182.92.239.13 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.09ms from Beijing, CN
27.7.118.29 AS17488 Hathway IP Over Cable Internet 1.14ms from Bengaluru, IN
117.207.170.77 AS9829 National Internet Backbone 7.53ms from Delhi, IN

Traceroute

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

$
traceroute -a -n -q1 -f2 91.207.185.26
traceroute to 91.207.185.26 (91.207.185.26): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Warsaw, PL
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 AS203821 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.

Get Started for Free Contact Sales
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