All ASNs

Autonomous System details for AS51859

AS51859

Mainstream doo Beograd • mainstream.eu

AS51859 — Mainstream doo Beograd

AS Name

MNSHA-AS

Country

Serbia (RS)

Website

mainstream.eu

Number of IPv4

19,456

Number of IPv6

6.73 × 10²⁹

ASN type

Hosting

Status

Allocated

Registry

RIPE

Allocated

November 17, 2010

Last updated

October 21, 2025

IP Ranges

35 IPv4 prefixes, 3 IPv6 prefixes

Prefix	Company	Number of IPs
87.237.200.0/21	Mainstream doo Beograd	2,048
87.237.201.0/24	Virtual Infrastructure	256
87.237.202.0/24	Limundo	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
91.185.218.0/23	Enterprise Cloud	512
91.185.223.0/24	Enterprise Cloud	256
91.214.200.0/22	Mainstream doo Beograd	1,024
91.222.4.0/22	Mainstream doo Beograd	1,024
91.222.4.0/24	Mainstream doo Beograd	256
91.222.5.0/24	Mainstream doo Beograd	256
91.222.6.0/24	Mainstream doo Beograd	256
91.222.7.0/24	Mainstream doo Beograd	256
92.249.52.0/22	Mainstream doo Beograd	1,024
185.29.100.0/22	Mainstream doo Beograd	1,024
185.29.100.0/24	Mainstream doo Beograd	256
185.29.101.0/24	Mainstream doo Beograd	256
185.29.102.0/24	Mainstream doo Beograd	256
185.29.103.0/24	Virtual infrastructure	256
185.167.144.0/22	Vivacom Bulgaria EAD	1,024
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
188.93.120.0/22	Mainstream doo Beograd	1,024
188.93.120.0/24	Mainstream doo Beograd	256
188.93.121.0/24	Mainstream doo Beograd	256
188.93.122.0/24	Virtual infrastructure	256
188.93.123.0/24	Virtual infrastructure	256
206.15.32.0/20	Mainstream doo Beograd	4,096
212.72.214.0/24	BTC Mainstream	256
213.91.181.0/24	BTC VivaCloud	256
2a04:2e40::/29	Mainstream doo Beograd	6.34 × 10²⁹
2a04:2e40::/34	Mainstream doo Beograd	1.98 × 10²⁸
2a04:2e40:4000::/34	Mainstream doo Beograd	1.98 × 10²⁸

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS51859

1 peers

AS24940

AS51859 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS51859

7 upstreams

AS3212 AS8400 AS8866 AS13004 AS15958 AS21215 AS31042

AS51859 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS51859 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS51859

0 downstreams

AS51859 has no downstreams recorded.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.