AS number details

AS51859

Mainstream doo Beograd  ·  mainstream.eu

Serbia

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

Sign up for free ›

AS51859 – Mainstream doo Beograd

Field Value
Country Serbia
Website mainstream.eu
Hosted domains 864
Number of IPv4 9,984
Number of IPv6 673,439,381,371,246,869,545,123,577,856
ASN type Hosting
Registry ripe
Allocated 15 years ago on Nov 17, 2010
Updated a month ago on Oct 21, 2025

IP Ranges

Netblock Company Num of IPs
87.237.200.0/21 Mainstream doo Beograd 2,048
91.214.200.0/22 Mainstream doo Beograd 1,024
91.222.4.0/22 Virtual infrastructure 1,024
92.249.52.0/22 Mainstream doo Beograd 1,024
185.29.100.0/22 Virtual infrastructure 1,024
185.167.144.0/22 Mainstream Cloud 1,024
188.93.120.0/22 Mainstream doo Beograd 1,024
91.185.218.0/23 Enterprise Cloud 512
87.237.201.0/24 Virtual Infrastructure 256
87.237.202.0/24 Virtual Infrastructure 256
87.237.203.0/24 Virtual Infrastructure 256
87.237.204.0/24 Virtual Infrastructure 256
87.237.205.0/24 Mainstream Enterprise Cloud 256
87.237.206.0/24 Virtual infrastructure 256
87.237.207.0/24 Virtual infrastructure 256
91.185.199.0/24 Enterprise Cloud 256
91.185.223.0/24 Enterprise Cloud 256
91.222.4.0/24 Virtual infrastructure 256
91.222.5.0/24 Virtual infrastructure 256
91.222.6.0/24 Virtual infrastructure 256
91.222.7.0/24 Virtual infrastructure 256
92.249.53.0/24 Virtual infrastructure 256
185.29.100.0/24 Virtual infrastructure 256
185.29.101.0/24 Virtual infrastructure 256
185.29.102.0/24 Virtual infrastructure 256
185.29.103.0/24 Virtual infrastructure 256
185.167.146.0/24 Mainstream doo Beograd 256
185.167.147.0/24 Mainstream doo Beograd 256
185.168.19.0/24 Kancelarija za informacione tehnologije i elektronsku upravu 256
188.93.120.0/24 Virtual Infrastructure 256
188.93.121.0/24 Virtual Infrastructure 256
188.93.122.0/24 Virtual infrastructure 256
188.93.123.0/24 Virtual infrastructure 256
212.72.214.0/24 Vivacom Bulgaria EAD 256
213.91.181.0/24 Vivacom Bulgaria EAD 256

Netblock Company
2a04:2e40::/29 Mainstream doo Beograd
2a04:2e40::/34 Mainstream doo Beograd
2a04:2e40:4000::/34 Mainstream doo Beograd
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:       AS51859
                                                OrgID:          AS51859
                                                ASName:         AS51859
                                                ASNumber:       AS51859
                                                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 864 domain names hosted across 238 IP addresses on this ASN.

Join for free to explore hosted domains ›
IP Address Domain Domains on this IP
87.237.203.194 ██████████ 243
87.237.200.6 ████████ 63
188.93.122.55 ██████████ 40
185.29.100.194 ██████████ 17
185.29.102.100 ███████ 17
91.222.6.103 ██████████ 17
185.29.102.14 ██████████ 16
185.29.102.213 ██████████ 12
185.167.146.179 █████ 11
185.29.102.216 ██████████ 10

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 8 peers for this ASN.

Peers Name
AS13004 Serbian Open Exchange DOO
AS15958 CETINdoo-NET
AS211877 TurkIX Communications Ltd.
AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS3212 Telemach Slovenija d.o.o.
AS8400 TELEKOM SRBIJA a.d.
AS8866 Vivacom Bulgaria EAD
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 5 upstreams for this ASN.

upstreams Name
AS15958 CETINdoo-NET
AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS3212 Telemach Slovenija d.o.o.
AS8400 TELEKOM SRBIJA a.d.
AS8866 Vivacom Bulgaria EAD
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

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

IP Address ASN Details
188.93.120.1 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
91.222.7.253 AS51859 Mainstream doo Beograd 0.55ms from Belgrade, RS
91.185.218.80 AS51859 Mainstream doo Beograd 0.68ms from Ljubljana, SI
213.91.181.124 AS51859 Mainstream doo Beograd 0.70ms from Sofia, BG
185.29.102.186 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 1.09ms from Belgrade, RS
87.237.201.133 AS51859 Mainstream doo Beograd 0.45ms from Belgrade, RS
185.168.19.129 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
188.93.123.120 AS51859 Mainstream doo Beograd 0.58ms from Belgrade, RS
91.185.199.47 AS51859 Mainstream doo Beograd 0.64ms from Ljubljana, SI
185.29.103.130 AS51859 Mainstream doo Beograd 0.44ms from Belgrade, RS
91.222.4.65 AS51859 Mainstream doo Beograd 0.42ms from Belgrade, RS
2a04:2e40:4301::11 AS51859 Mainstream doo Beograd 0.87ms from Belgrade, RS
87.237.202.211 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
91.222.6.185 AS51859 Mainstream doo Beograd 0.66ms from Belgrade, RS
212.72.214.193 AS51859 Mainstream doo Beograd 0.72ms from Sofia, BG
91.214.200.0 AS51859 Mainstream doo Beograd 4.01ms from Belgrade, RS
87.237.207.251 AS51859 Mainstream doo Beograd 0.49ms from Belgrade, RS
185.29.101.66 AS51859 Mainstream doo Beograd 0.39ms from Belgrade, RS
91.185.219.16 AS51859 Mainstream doo Beograd 0.68ms from Ljubljana, SI
188.93.122.37 AS51859 Mainstream doo Beograd 0.63ms from Belgrade, RS
87.237.205.26 AS51859 Mainstream doo Beograd 1.03ms from Belgrade, RS
185.167.147.32 AS51859 Mainstream doo Beograd 0.59ms from Sofia, BG
92.249.55.146 AS51859 Mainstream doo Beograd 0.36ms from Belgrade, RS
87.237.206.238 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS

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
181.123.57.243 AS23201 Telecel S.A. 8.53ms from Asuncion, PY
75.243.99.67 AS6167 Verizon Business 9.21ms from Atlanta, US
180.77.104.83 AS17429 BEIJING GEHUA CATV NETWORK CO.LTD 9.82ms from Beijing, CN
20.96.180.3 AS8075 Microsoft Corporation 0.31ms from Boydton, US
52.167.8.67 AS8075 Microsoft Corporation 0.20ms from Boydton, US
20.162.2.195 AS8075 Microsoft Corporation 0.19ms from Cardiff, GB
79.205.27.3 AS3320 Deutsche Telekom AG 6.10ms from Frankfurt am Main, DE
34.88.153.179 AS396982 Google LLC 0.14ms from Hamina, FI
18.170.237.179 AS16509 Amazon.com, Inc. 0.19ms from London, GB
5.65.23.51 AS5607 Sky UK Limited 1.40ms from London, GB
50.80.188.51 AS30036 Mediacom Communications Corp 18.00ms from Minneapolis, US
76.66.187.195 AS577 Bell Canada 1.56ms from Montreal, CA
185.145.55.99 AS201138 JSC UCB 0.98ms from Moscow, RU
87.176.155.51 AS3320 Deutsche Telekom AG 5.06ms from Nuernberg, DE
153.142.84.195 AS4713 NTT DOCOMO BUSINESS,Inc. 5.00ms from Osaka, JP
88.180.40.131 AS12322 Free SAS 10.56ms from Paris, FR
4.242.130.3 AS8075 Microsoft Corporation 0.18ms from Phoenix, US
200.150.149.115 AS15830 Equinix (EMEA) Acquisition Enterprises B.V. 1.51ms from Rio de Janeiro, BR
192.163.250.19 AS46606 Unified Layer 2.10ms from Salt Lake City, US
112.157.17.163 AS17858 LG POWERCOMM 1.73ms from Seoul, KR
211.38.191.19 AS4766 Korea Telecom 4.55ms from Seoul, KR
18.138.148.115 AS16509 Amazon.com, Inc. 0.12ms from Singapore, SG
13.54.35.147 AS16509 Amazon.com, Inc. 0.10ms from Sydney, AU
60.247.123.19 AS4847 China Networks Inter-Exchange 3.05ms from Tianjin, CN
80.68.227.19 AS49242 Internet Union Spolka Akcyjna 4.85ms from Warsaw, PL

Traceroute

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

$
traceroute -a -n -q1 -m8 91.214.201.121
traceroute to 91.214.201.121 (91.214.201.121): 8 hops max, 52 byte packets
2 *
3 [] 195.66.225.141 26.182 ms
4 *
5 [AS21215] 185.81.60.51 37.463 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Peterborough, GB
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 AS51859 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