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 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
2a04:2e40:300::eeee:1 AS51859 Mainstream doo Beograd 0.82ms from Belgrade, RS
185.29.100.117 AS51859 Mainstream doo Beograd 0.34ms from Belgrade, RS
87.237.207.251 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
188.93.122.168 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
2a04:2e40:4301::12 AS51859 Mainstream doo Beograd 0.89ms from Belgrade, RS
87.237.202.219 AS51859 Mainstream doo Beograd 0.33ms from Belgrade, RS
91.222.5.249 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
87.237.206.8 AS51859 Mainstream doo Beograd 0.26ms from Belgrade, RS
185.29.103.195 AS51859 Mainstream doo Beograd 0.22ms from Belgrade, RS
87.237.203.75 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
91.222.7.253 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
91.222.4.67 AS51859 Mainstream doo Beograd 0.35ms from Belgrade, RS
91.214.203.1 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
91.185.218.53 AS51859 Mainstream doo Beograd 5.14ms from Vienna, AT
91.222.6.254 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
91.185.219.16 AS51859 Mainstream doo Beograd 5.50ms from Vienna, AT
185.167.146.118 AS51859 Mainstream doo Beograd 0.62ms from Sofia, BG
188.93.121.30 AS51859 Mainstream doo Beograd 0.40ms from Belgrade, RS
87.237.204.122 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
185.29.102.189 AS51859 Mainstream doo Beograd 0.28ms from Belgrade, RS
206.15.32.37 AS51859 Mainstream doo Beograd 2.01ms from Belgrade, RS
188.93.123.118 AS51859 Mainstream doo Beograd 0.45ms from Belgrade, RS
185.29.101.32 AS51859 Mainstream doo Beograd 0.30ms from Belgrade, RS
188.93.120.1 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
185.167.147.10 AS51859 Mainstream doo Beograd 0.63ms from Sofia, BG

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
141.255.88.195 AS3329 Vodafone-panafon Hellenic Telecommunications Company SA 2.39ms from Athens, GR
51.225.71.67 AS16509 Amazon.com, Inc. 0.96ms from Berlin, DE
34.212.50.83 AS16509 Amazon.com, Inc. 0.21ms from Boardman, US
34.212.89.99 AS16509 Amazon.com, Inc. 0.20ms from Boardman, US
174.110.184.211 AS11426 Charter Communications Inc 11.67ms from Charlotte, US
14.21.135.19 AS4134 CHINANET BACKBONE 3.39ms from Guangzhou, CN
14.173.51.51 AS45899 VNPT Corp 6.42ms from Ho Chi Minh City, VN
3.9.79.163 AS16509 Amazon.com, Inc. 0.19ms from London, GB
23.202.68.211 AS16625 Akamai Technologies, Inc. 0.49ms from Miami, US
87.6.42.99 AS3269 Telecom Italia S.p.A. 5.07ms from Milan, IT
210.153.76.35 AS2514 NTT PC Communications, Inc. 5.94ms from Osaka, JP
45.78.59.227 AS25820 IT7 Networks Inc 0.20ms from Osaka, JP
217.109.244.99 AS3215 Orange S.A. 5.37ms from Paris, FR
88.103.25.243 AS5610 O2 Czech Republic, a.s. 1.73ms from Prague, CZ
203.236.119.51 AS4766 Korea Telecom 1.00ms from Seoul, KR
43.173.171.67 AS132203 Tencent Building, Kejizhongyi Avenue 0.65ms from Singapore, SG
27.91.208.3 AS2516 KDDI CORPORATION 1.03ms from Tokyo, JP
136.107.109.227 AS396982 Google LLC 0.14ms from Ashburn, US
52.168.64.195 AS8075 Microsoft Corporation 0.47ms from Ashburn, US
71.79.8.131 AS10796 Charter Communications Inc 9.08ms from Columbus, US
115.196.222.131 AS4134 CHINANET BACKBONE 4.70ms from Hangzhou, CN
119.25.213.227 AS9617 JCOM Co., Ltd. 13.97ms from Osaka, JP
73.197.134.195 AS7922 Comcast Cable Communications, LLC 6.97ms from Piscataway, US
222.98.146.3 AS4766 Korea Telecom 2.02ms from Seoul, KR
175.243.210.51 AS4766 Korea Telecom 7.11ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -f3 188.93.121.147
traceroute to 188.93.121.147 (188.93.121.147): 64 hops max, 52 byte packets
3 [] 185.1.27.82 0.601 ms
6 [AS51859] 91.222.4.136 4.199 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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