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 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
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 9 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.
AS7768 Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERI
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
87.237.204.122 AS51859 Mainstream doo Beograd 0.49ms from Belgrade, RS
91.222.6.254 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
91.222.5.249 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
2a04:2e40:4301::12 AS51859 Mainstream doo Beograd 0.95ms from Belgrade, RS
185.167.146.180 AS51859 Mainstream doo Beograd 0.62ms from Sofia, BG
185.168.19.132 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
91.185.218.34 AS51859 Mainstream doo Beograd 5.14ms from Vienna, AT
185.29.100.203 AS51859 Mainstream doo Beograd 0.31ms from Belgrade, RS
87.237.202.211 AS51859 Mainstream doo Beograd 0.27ms 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
213.91.181.126 AS51859 Mainstream doo Beograd 0.61ms from Sofia, BG
188.93.123.185 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
185.167.144.77 AS51859 Mainstream doo Beograd 0.46ms from Sofia, BG
87.237.207.251 AS51859 Mainstream doo Beograd 0.44ms from Belgrade, RS
185.29.103.195 AS51859 Mainstream doo Beograd 0.29ms from Belgrade, RS
92.249.55.31 AS51859 Mainstream doo Beograd 0.42ms from Belgrade, RS
185.29.102.248 AS51859 Mainstream doo Beograd 0.26ms from Belgrade, RS
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
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 0.98ms from Belgrade, RS
185.167.147.8 AS51859 Mainstream doo Beograd 0.63ms from Sofia, BG
188.93.120.1 AS51859 Mainstream doo Beograd 0.25ms from Belgrade, RS
185.29.101.9 AS51859 Mainstream doo Beograd 0.31ms from Belgrade, RS
2a04:2e40:300::eeee:1 AS51859 Mainstream doo Beograd 0.89ms 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
75.130.121.3 AS20115 Charter Communications LLC 18.27ms from Atlanta, US
179.173.126.211 AS26599 TELEFÔNICA BRASIL S.A 15.70ms from Brasilia, BR
174.102.201.147 AS10796 Charter Communications Inc 11.32ms from Chicago, US
108.234.27.195 AS7018 AT&T Enterprises, LLC 5.83ms from Chicago, US
178.161.102.3 AS42961 Mobile Telecommunications Company K.S.C.P. 15.82ms from Kuwait City, KW
59.55.6.99 AS4134 CHINANET BACKBONE 7.95ms from Nanchang, CN
169.136.76.3 AS10122 NETSTAR (SG) PTE. LTD. 0.72ms from Singapore, SG
3.1.57.83 AS16509 Amazon.com, Inc. 0.15ms from Singapore, SG
82.115.130.227 AS30795 BRS Networks AB 4.30ms from Stockholm, SE
42.4.65.3 AS4837 CHINA UNICOM China169 Backbone 8.61ms from Tieling, CN
104.71.149.195 AS16625 Akamai Technologies, Inc. 0.15ms from Tokyo, JP
185.251.185.3 AS204342 vestra ICT Ltd. 2.35ms from Zuerich, CH
20.4.177.83 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
36.137.131.115 AS9808 China Mobile Communications Group Co., Ltd. 0.52ms from Chengdu, CN
81.129.12.147 AS2856 British Telecommunications PLC 4.25ms from Erith, GB
81.139.186.243 AS2856 British Telecommunications PLC 4.17ms from Erith, GB
109.151.75.179 AS2856 British Telecommunications PLC 7.81ms from Erith, GB
43.129.224.83 AS132203 Tencent Building, Kejizhongyi Avenue 0.41ms from Hong Kong, HK
103.30.205.51 AS10034 SEOUL AGRICULTURAL MARINE PRODUCTS CORP. 1.52ms from Incheon, KR
192.234.160.3 AS40716 DOT.Comm 2.03ms from Lincoln, US
195.29.55.115 AS5391 Hrvatski Telekom d.d. 2.86ms from Ljubljana, SI
76.166.212.195 AS20001 Charter Communications Inc 4.46ms from Los Angeles, US
2.119.150.243 AS3269 Telecom Italia S.p.A. 6.77ms from Rome, IT
122.116.231.195 AS3462 Data Communication Business Group 1.23ms from Taipei, TW
223.132.241.243 AS2527 Sony Network Communications Inc. 2.22ms from Tokyo, JP

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 92.249.52.222
traceroute to 92.249.52.222 (92.249.52.222): 7 hops max, 52 byte packets
4 [AS174] 38.142.86.1 2.128 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Dallas, US
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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