Autonomous System details

AS51859

Mainstream doo Beograd  ·  mainstream.eu

Serbia

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AS51859 – Mainstream doo Beograd

Field Value
Country Serbia
Website mainstream.eu
Hosted domains 1,044
IPv4 addresses 9,984
IPv6 addresses 673,439,381,371,246,869,545,123,577,856
ASN type Hosting
Registry ripe
Allocated 15 years ago on Nov 17, 2010
Updated 4 months 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
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WHOIS Details

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                                                ASHandle:       AS51859
                                                OrgID:          AS51859
                                                ASName:         AS51859
                                                ASNumber:       AS51859
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 1,044 domain names hosted across 244 IP addresses on this ASN.

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IP Address Domain Domains on this IP
87.237.203.194 ██████████ 386
188.93.122.55 ██████████ 38
87.237.203.211 ██████████ 30
91.222.6.103 ██████████ 18
185.29.100.194 ██████████ 17
185.29.102.100 ██████████ 17
185.29.102.14 ██████████ 14
185.29.102.213 ██████ 12
185.29.102.216 ██████████ 10
185.29.102.75 ██████████ 10

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Peers

There are 7 peers for this ASN.

Peers Name
AS13004 Serbian Open Exchange DOO
AS15958 CETINdoo-NET
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
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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
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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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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
87.237.202.219 AS51859 Mainstream doo Beograd 0.57ms from Belgrade, RS
92.249.55.130 AS51859 Mainstream doo Beograd 0.40ms from Belgrade, RS
91.185.219.18 AS51859 Mainstream doo Beograd 5.68ms from Vienna, AT
185.29.100.242 AS51859 Mainstream doo Beograd 0.55ms from Belgrade, RS
188.93.123.187 AS51859 Mainstream doo Beograd 0.63ms from Belgrade, RS
91.185.218.25 AS51859 Mainstream doo Beograd 5.17ms from Vienna, AT
87.237.206.8 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
87.237.203.87 AS51859 Mainstream doo Beograd 0.40ms from Belgrade, RS
213.91.181.8 AS51859 Mainstream doo Beograd 0.61ms from Sofia, BG
91.222.7.2 AS51859 Mainstream doo Beograd 0.60ms from Belgrade, RS
185.168.19.28 AS51859 Mainstream doo Beograd 0.49ms from Belgrade, RS
87.237.205.5 AS51859 Mainstream doo Beograd 0.96ms from Belgrade, RS
87.237.201.131 AS51859 Mainstream doo Beograd 0.55ms from Belgrade, RS
91.185.199.5 AS51859 Mainstream doo Beograd 5.17ms from Vienna, AT
185.29.102.155 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 0.99ms from Belgrade, RS
212.72.214.75 AS51859 Mainstream doo Beograd 0.62ms from Sofia, BG
188.93.122.104 AS51859 Mainstream doo Beograd 0.59ms from Belgrade, RS
2a04:2e40:300::eeee:2 AS51859 Mainstream doo Beograd 0.87ms from Belgrade, RS
185.29.103.195 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS
91.214.200.0 AS51859 Mainstream doo Beograd 3.94ms from Belgrade, RS
185.29.101.17 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
185.167.146.228 AS51859 Mainstream doo Beograd 0.60ms from Sofia, BG
185.167.147.32 AS51859 Mainstream doo Beograd 0.59ms from Sofia, BG
188.93.120.1 AS51859 Mainstream doo Beograd 0.42ms 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
176.205.27.51 AS5384 Emirates Internet 4.83ms from Al Fujairah City, AE
20.93.166.195 AS8075 Microsoft Corporation 0.25ms from Amsterdam, NL
71.225.54.99 AS7922 Comcast Cable Communications, LLC 9.03ms from Ashburn, US
130.149.230.35 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 0.94ms from Berlin, DE
37.100.83.19 AS1267 WIND TRE S.P.A. 7.46ms from Frosinone, IT
31.7.193.3 AS56635 XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana 0.22ms from Ljubljana, SI
39.73.219.243 AS4837 CHINA UNICOM China169 Backbone 4.27ms from Qingdao, CN
46.10.56.227 AS8866 Vivacom Bulgaria EAD 0.76ms from Sofia, BG
171.221.173.179 AS4134 CHINANET-BACKBONE 1.89ms from Chengdu, CN
82.149.255.3 AS29551 Aixit GmbH 0.66ms from Frankfurt am Main, DE
104.181.192.227 AS7018 AT&T Enterprises, LLC 7.28ms from Houston, US
83.132.203.211 AS2860 NOS COMUNICACOES, S.A. 19.05ms from Lisbon, PT
150.143.225.211 AS6871 Plusnet 3.31ms from London, GB
176.118.72.163 AS48128 Obyedinyonniye Lokalniye Seti Ltd. 1.16ms from Moscow, RU
185.28.85.131 AS50340 JSC Selectel 0.83ms from Moscow, RU
140.138.147.19 AS1659 Taiwan Academic Network (TANet) Information Center 2.29ms from Taipei, TW
180.47.128.19 AS4713 NTT DOCOMO BUSINESS,Inc. 9.86ms from Tokyo, JP
41.62.88.243 AS37705 TOPNET 2.11ms from Tunis, TN
77.59.154.179 AS6730 Sunrise GmbH 5.00ms from Zuerich, CH
193.220.200.51 AS44933 Marlink MSS NL AMS PoP 0.51ms from Amsterdam, NL
155.94.246.19 AS36352 HostPapa 0.47ms from Atlanta, US
181.56.61.131 AS10620 Telmex Colombia S.A. 6.53ms from Bogota, CO
34.63.147.115 AS396982 Google LLC 0.40ms from Council Bluffs, US
170.72.142.195 AS13445 Cisco Webex LLC 1.21ms from Dallas, US
154.29.78.83 AS211014 Sachin Dashrath Kothawade trading as ELITE TECHNO SOLUTION 0.15ms 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 185.168.19.29
traceroute to 185.168.19.29 (185.168.19.29): 64 hops max, 52 byte packets
3 [AS1299] 62.115.161.35 0.285 ms
4 [AS8400] 212.200.7.65 0.495 ms
Measurement taken from IPinfo ProbeNet in Belgrade, RS
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.

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