AS39251 — NETGUARD

AS39251 announces 22 IPv4 prefixes covering 22,272 addresses and 1 IPv6 prefixes.

About this network

NETGUARD is operated by NetGuard LLC, a Bulgarian internet service provider.

What it's used for

• The address space carries residential and business subscriber traffic, evidenced by netnames such as BG-NETGUARD-20070209 and NetguardPlovdiv associated with registrant NETGUARD LLC.
• The AS announces 22,272 IPv4 addresses across 22 prefixes and 1 IPv6 prefix, while maintaining 58 observed neighbours; this ratio of moderate address space to high peering density indicates a regional access provider purchasing transit and peering for local connectivity.
• Traffic from this AS consists of subscriber eyeballs and local business endpoints within Bulgaria, consistent with NetGuard's role as a national ISP.

Notable

• Registrants for the majority of prefixes are NETGUARD LLC, aligning with the AS holder; however, the prefix 85.130.72.0/22 is registered to A1 Bulgaria EAD Abuse under the netname Netguard-LTD, suggesting a historical transfer or lease from the former A1 Bulgaria infrastructure.
• The inventory is composed of a mix of /20, /21, /22, /23, and /24 blocks, with the largest allocations being 77.76.16.0/20 and 91.92.80.0/20.

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

Announced prefixes

• 77.76.16.0/20
• 85.130.72.0/22
• 91.92.72.0/21
• 91.92.80.0/20
• 91.92.96.0/21
• 91.207.190.0/23
• 91.223.66.0/24
• 91.245.192.0/24
• 95.169.199.0/24
• 95.169.200.0/24
• 109.160.52.0/22
• 185.163.140.0/22
• 185.225.84.0/22
• 185.229.252.0/22
• 193.37.238.0/24
• 194.169.223.0/24
• 194.169.230.0/24
• 194.169.237.0/24
• 194.169.242.0/24
• 195.238.84.0/23
• 212.70.140.0/23
• 213.232.88.0/22
• 2a0b:f800::/32

Upstream networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS57463 NetIX Communications JSC
• AS8280 SYNAPSECOM S.A. Provider of Telecommunications and Internet Services
• AS49673 Truenetwork LLC
• AS3303 Swisscom (Schweiz) AG
• AS37721 Virtual Technologies & Solutions
• AS50673 Serverius Holding B.V.
• AS208972 GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI
• AS56655 Gigahost AS
• AS24482 SG.GS
• AS29632 Netassist International EOOD
• AS5405 Inter.link GmbH
• AS59900 Balkan Internet Exchange Ltd

Downstream networks

• AS20818 NETGUARD LLC
• AS42446 Viscomp Ltd
• AS47624 NETGUARD LLC
• AS39401 Link+ Ltd

Adjacent networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS20818 NETGUARD LLC
• AS42446 Viscomp Ltd
• AS47624 NETGUARD LLC
• AS208972 GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI
• AS57463 NetIX Communications JSC
• AS8280 SYNAPSECOM S.A. Provider of Telecommunications and Internet Services
• AS37721 Virtual Technologies & Solutions
• AS3303 Swisscom (Schweiz) AG
• AS24482 SG.GS
• AS50673 Serverius Holding B.V.
• AS56655 Gigahost AS
• AS49673 Truenetwork LLC
• AS39401 Link+ Ltd
• AS29632 Netassist International EOOD
• AS59900 Balkan Internet Exchange Ltd
• AS5405 Inter.link GmbH

Internet exchanges

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