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 862
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 2 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 862 domain names hosted across 238 IP addresses on this ASN.

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IP Address Domain Domains on this IP
87.237.203.194 ██████████ 244
87.237.200.6 ██████████ 63
188.93.122.55 ██████████ 40
185.29.102.100 ██████████ 17
91.222.6.103 ██████████ 17
185.29.100.194 ██████████ 17
185.29.102.14 ██████████ 16
185.29.102.213 ██████ 12
185.29.102.80 ██████████ 10
185.29.102.216 ██████████ 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
87.237.207.251 AS51859 Mainstream doo Beograd 0.52ms from Belgrade, RS
91.185.199.68 AS51859 Mainstream doo Beograd 0.61ms from Ljubljana, SI
91.222.7.8 AS51859 Mainstream doo Beograd 0.50ms from Belgrade, RS
185.167.146.74 AS51859 Mainstream doo Beograd 0.71ms from Sofia, BG
185.167.147.10 AS51859 Mainstream doo Beograd 0.69ms from Sofia, BG
185.29.102.239 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
87.237.205.73 AS51859 Mainstream doo Beograd 1.00ms from Belgrade, RS
87.237.203.75 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS
188.93.121.11 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
2a04:2e40:4301::12 AS51859 Mainstream doo Beograd 0.96ms from Belgrade, RS
185.29.100.129 AS51859 Mainstream doo Beograd 0.48ms from Belgrade, RS
185.29.101.76 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
87.237.201.132 AS51859 Mainstream doo Beograd 0.44ms from Belgrade, RS
91.222.4.67 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
91.185.219.16 AS51859 Mainstream doo Beograd 0.69ms from Ljubljana, SI
87.237.204.122 AS51859 Mainstream doo Beograd 0.51ms from Belgrade, RS
188.93.122.41 AS51859 Mainstream doo Beograd 0.64ms from Belgrade, RS
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 1.04ms from Belgrade, RS
91.222.5.249 AS51859 Mainstream doo Beograd 0.51ms from Belgrade, RS
87.237.206.8 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS
188.93.120.1 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
2a04:2e40:300::eeee:2 AS51859 Mainstream doo Beograd 0.88ms from Belgrade, RS
91.222.6.254 AS51859 Mainstream doo Beograd 0.63ms from Belgrade, RS
213.91.181.52 AS51859 Mainstream doo Beograd 0.67ms from Sofia, BG
185.168.19.30 AS51859 Mainstream doo Beograd 0.50ms 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
193.234.249.3 AS1299 Arelion Sweden AB 16.27ms from Atlanta, US
74.205.128.227 AS26827 EPB Fiber Optics 3.61ms from Atlanta, US
34.44.11.115 AS396982 Google LLC 0.12ms from Council Bluffs, US
122.160.178.179 AS24560 Bharti Airtel Ltd., Telemedia Services 1.94ms from Delhi, IN
116.29.251.3 AS4134 CHINANET-BACKBONE 7.07ms from Guangzhou, CN
2.225.7.35 AS12874 Fastweb SpA 3.20ms from Milan, IT
76.68.222.163 AS577 Bell Canada 9.34ms from Montreal, CA
122.242.85.35 AS4134 CHINANET-BACKBONE 8.13ms from Nanchang, CN
151.25.15.3 AS1267 WIND TRE S.P.A. 3.36ms from Rome, IT
47.102.226.179 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.25ms from Shanghai, CN
118.238.206.67 AS2527 Sony Network Communications Inc. 2.37ms from Tokyo, JP
8.209.223.19 AS45102 Alibaba (US) Technology Co., Ltd. 1.28ms from Tokyo, JP
86.80.71.227 AS1136 KPN B.V. 2.06ms from Amsterdam, NL
198.244.9.3 AS18630 The Ridley School District 4.31ms from Ashburn, US
177.53.121.243 AS269994 SCALI ALFREDO MARCOS (ALL SOLUTIONS) 10.96ms from Buenos Aires, AR
221.10.202.51 AS4837 CHINA UNICOM China169 Backbone 4.14ms from Chengdu, CN
35.225.248.211 AS396982 Google LLC 0.12ms from Council Bluffs, US
199.87.250.243 AS62917 Gigabit Communications LLC 0.25ms from Dallas, US
73.169.37.35 AS7922 Comcast Cable Communications, LLC 2.08ms from Denver, US
84.143.94.3 AS3320 Deutsche Telekom AG 4.30ms from Duesseldorf, DE
87.182.220.195 AS3320 Deutsche Telekom AG 2.82ms from Frankfurt am Main, DE
18.169.181.51 AS16509 Amazon.com, Inc. 0.19ms from London, GB
185.215.104.35 AS205518 Kelly Victoria Tidiman 12.42ms from Madrid, ES
31.210.217.51 AS43727 KVANT TELECOM 6.71ms from Moscow, RU
43.204.47.195 AS16509 Amazon.com, Inc. 0.17ms from Mumbai, 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 87.237.201.212
traceroute to 87.237.201.212 (87.237.201.212): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Timisoara, RO
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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