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 14,080
IPv6 addresses 673,439,381,371,246,868,000,000,000,000
ASN type Hosting
Registry ripe
Allocated 15 years ago on Nov 17, 2010
Updated 6 months ago on Oct 21, 2025

IP Ranges

Netblock Company Num of IPs
206.15.32.0/20 Mainstream doo Beograd 4,096
87.237.200.0/21 Mainstream doo Beograd 2,048
91.214.200.0/22 Eunet Hosting & Cloud 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
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 ██████████ 422
87.237.203.211 ██████████ 143
188.93.122.55 ██████████ 29
185.29.102.100 ██████████ 18
91.222.6.103 ██████████ 16
185.29.100.194 ██████████ 14
185.29.102.14 ██████████ 12
185.29.102.213 ██████████ 12
87.237.203.218 ██████████ 12
185.29.102.216 ██████████ 10

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Peers

There are 8 peers for this ASN.

Peers Name
AS13004 Serbian Open Exchange DOO
AS15958 CETINdoo-NET
AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS24940 Hetzner Online GmbH
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

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

IP Address ASN Details
91.222.7.12 AS51859 Mainstream doo Beograd 0.45ms from Belgrade, RS
188.93.121.30 AS51859 Mainstream doo Beograd 0.40ms from Belgrade, RS
185.167.144.77 AS51859 Mainstream doo Beograd 0.46ms from Sofia, BG
91.222.4.187 AS51859 Mainstream doo Beograd 0.39ms from Belgrade, RS
87.237.206.190 AS51859 Mainstream doo Beograd 0.23ms from Belgrade, RS
188.93.120.1 AS51859 Mainstream doo Beograd 0.25ms from Belgrade, RS
206.15.32.39 AS51859 Mainstream doo Beograd 2.02ms from Belgrade, RS
185.167.146.180 AS51859 Mainstream doo Beograd 0.62ms from Sofia, BG
87.237.204.122 AS51859 Mainstream doo Beograd 0.49ms from Belgrade, RS
2a04:2e40:4301::12 AS51859 Mainstream doo Beograd 0.95ms from Belgrade, RS
91.222.6.254 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
87.237.201.131 AS51859 Mainstream doo Beograd 0.39ms from Belgrade, RS
92.249.55.31 AS51859 Mainstream doo Beograd 0.42ms from Belgrade, RS
87.237.205.11 AS51859 Mainstream doo Beograd 0.39ms from Belgrade, RS
188.93.122.113 AS51859 Mainstream doo Beograd 0.26ms from Belgrade, RS
212.72.214.75 AS51859 Mainstream doo Beograd 0.67ms from Sofia, BG
185.29.102.248 AS51859 Mainstream doo Beograd 0.26ms from Belgrade, RS
87.237.207.251 AS51859 Mainstream doo Beograd 0.44ms from Belgrade, RS
87.237.203.193 AS51859 Mainstream doo Beograd 0.26ms from Belgrade, RS
185.168.19.132 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 0.98ms from Belgrade, RS
2a04:2e40:300::eeee:1 AS51859 Mainstream doo Beograd 0.89ms from Belgrade, RS
87.237.202.211 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
188.93.123.185 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
185.29.103.195 AS51859 Mainstream doo Beograd 0.29ms 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
107.1.55.131 AS7922 Comcast Cable Communications, LLC 2.10ms from Atlanta, US
60.28.15.51 AS4837 CHINA UNICOM China169 Backbone 5.30ms from Beijing, CN
3.170.152.179 AS16509 Amazon.com, Inc. 0.81ms from Chicago, US
135.225.8.51 AS8075 Microsoft Corporation 0.16ms from Gaevle, SE
121.196.170.147 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.71ms from Hangzhou, CN
121.40.223.195 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.17ms from Hangzhou, CN
97.164.171.227 AS6167 Verizon Business 12.98ms from Miami, US
79.30.22.83 AS3269 Telecom Italia S.p.A. 8.38ms from Milan, IT
31.130.33.35 AS49583 Kom lan Ltd 1.34ms from Moscow, RU
210.153.76.35 AS2514 NTT PC Communications, Inc. 6.02ms from Osaka, JP
52.156.89.227 AS8075 Microsoft Corporation 0.38ms from Quincy, US
212.210.115.67 AS3269 Telecom Italia S.p.A. 3.75ms from Rome, IT
46.202.6.115 AS396356 Latitude.sh 0.09ms from Santiago de Queretaro, MX
177.32.224.131 AS28573 Claro NXT Telecomunicacoes Ltda 6.95ms from Sao Paulo, BR
185.128.227.179 AS206216 Advin Services LLC 1.33ms from Singapore, SG
60.22.223.19 AS4837 CHINA UNICOM China169 Backbone 8.65ms from Tieling, CN
77.26.204.67 AS12334 R Cable y Telecable Telecomunicaciones, S.A.U. 4.72ms from A Coruna, ES
179.1.135.99 AS18678 INTERNEXA S.A. E.S.P 0.83ms from Bogota, CO
179.173.126.211 AS26599 TELEFÔNICA BRASIL S.A 15.70ms from Brasilia, BR
173.92.133.131 AS11426 Charter Communications Inc 4.56ms from Charlotte, US
98.121.136.19 AS11426 Charter Communications Inc 6.96ms from Charlotte, US
98.212.43.51 AS7922 Comcast Cable Communications, LLC 5.77ms from Chicago, US
18.217.158.211 AS16509 Amazon.com, Inc. 0.19ms from Columbus, US
122.160.178.179 AS24560 Bharti Airtel Ltd., Telemedia Services 1.29ms from Delhi, IN
81.129.12.147 AS2856 British Telecommunications PLC 4.25ms from Erith, GB

Traceroute

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

$
traceroute -a -n -q1 -f2 188.93.121.1
traceroute to 188.93.121.1 (188.93.121.1): 64 hops max, 52 byte packets
2 [AS42473] 94.16.12.33 0.271 ms
3 [] 185.1.27.82 0.451 ms
5 [AS51859] 91.222.7.75 0.721 ms
6 [AS51859] 188.93.121.1 1.114 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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