AS20911 — NETSURF-AS-

Network type: residential

AS20911 announces 25 IPv4 prefixes covering 36,608 addresses and 0 IPv6 prefixes.

About this network

NETSURF-AS- is operated by Net-Surf.net Ltd., a Bulgarian internet service provider.

What it's used for

• The address space carries residential broadband traffic, evidenced by netnames such as NET-SURFNET-GPON and NETSURFNET-BROADBAND, and reverse DNS entries like ip-95-111-122-0.home.megalan.bg.
• The AS announces 36608 IPv4 addresses across 25 prefixes and maintains 49 observed neighbours, a ratio consistent with an access network providing connectivity to end-users rather than a transit provider.

Notable

• Registrants are predominantly Net-Surf.net Ltd., though some prefixes like 78.90.248.0/21 and 95.111.120.0/21 list A1 Bulgaria EAD Abuse, suggesting historical acquisition or lease of address space from A1 Bulgaria.
• The inventory consists of a mix of larger blocks like 178.254.192.0/18 and numerous smaller /23 and /24 prefixes, indicating a fragmented or historically accumulated address estate.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 45.90.90.0/23
• 46.229.192.0/20
• 78.90.248.0/21
• 78.128.36.0/23
• 78.128.40.0/24
• 79.124.9.0/24
• 80.72.88.0/22
• 84.21.174.0/23
• 87.120.118.0/23
• 87.120.122.0/23
• 87.120.124.0/24
• 87.121.70.0/23
• 92.249.50.0/24
• 93.123.26.0/23
• 93.152.228.0/23
• 93.152.248.0/21
• 94.156.162.0/23
• 95.111.120.0/21
• 95.214.27.0/24
• 178.254.192.0/18
• 185.95.248.0/22
• 193.42.34.0/23
• 194.55.186.0/24
• 194.169.175.0/24
• 195.230.28.0/22

Upstream networks

• AS57344 Telehouse EAD
• AS174 Cogent Communications, LLC
• AS9002 RETN Limited
• AS57463 NetIX Communications JSC
• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS44901 Belcloud LTD
• AS3303 Swisscom (Schweiz) AG
• AS37721 Virtual Technologies & Solutions
• AS50673 Serverius Holding B.V.
• AS401753 BIXCE Inc
• AS34019 Hivane Association
• AS206499 LOCIX LIMITED
• AS24482 SG.GS
• AS59900 Balkan Internet Exchange Ltd

Downstream networks

• AS8431 TEA Ltd.

Adjacent networks

• AS57344 Telehouse EAD
• AS174 Cogent Communications, LLC
• AS9002 RETN Limited
• AS57463 NetIX Communications JSC
• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS8431 TEA Ltd.
• AS44901 Belcloud LTD
• AS401753 BIXCE Inc
• AS24482 SG.GS
• AS50673 Serverius Holding B.V.
• AS37721 Virtual Technologies & Solutions
• AS206499 LOCIX LIMITED
• AS3303 Swisscom (Schweiz) AG
• AS34019 Hivane Association
• AS59900 Balkan Internet Exchange Ltd

Internet exchanges

• NetIX — Sofia, Bulgaria
• Bulgarian Internet eXchange — Sofia, Bulgaria
• Balkan Internet Exchange — Sofia, Bulgaria