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Autonomous System

AS29580

A1 Bulgaria EAD

A1 Bulgaria EAD Bulgaria 🌐 a1.bg
Announced IPs
263,168
CIDR prefixes
282
ASN
AS29580

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

69/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Geographic scope Not Disclosed
Traffic ratio Not Disclosed
Peering policy Open

AS29580 — global IP footprint

Cities where AS29580 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
78.83.64.0/18 16.4K
93.1%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.32.0/19 8.2K
96.0%
A1 Bulgaria EAD BG Burgas Burgas
87.227.224.0/19 8.2K
0.0%
A1 Bulgaria EAD BG Veliko Tarnovo Veliko Tarnovo
92.247.224.0/19 8.2K
96.7%
A1 Bulgaria EAD BG Sofia-Capital Sofia
151.251.160.0/19 8.2K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
176.12.32.0/19 8.2K
99.7%
A1 Bulgaria EAD BG Burgas Burgas
37.63.48.0/20 4.1K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
37.63.80.0/20 4.1K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
37.63.112.0/20 4.1K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.16.0/20 4.1K
99.2%
A1 Bulgaria EAD BG Varna Varna
87.227.160.0/20 4.1K
86.5%
A1 Bulgaria EAD BG Veliko Tarnovo Veliko Tarnovo
88.203.160.0/20 4.1K
0.6%
A1 Bulgaria EAD BG Veliko Tarnovo Veliko Tarnovo
92.247.48.0/20 4.1K
0.8%
A1 Bulgaria EAD BG — —
92.247.208.0/20 4.1K
99.8%
A1 Bulgaria EAD BG Sofia-Capital Sofia
130.204.64.0/20 4.1K
88.2%
A1 Bulgaria EAD BG Sofia-Capital Sofia
151.251.144.0/20 4.1K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
176.12.16.0/20 4.1K
99.9%
A1 Bulgaria EAD BG Sofia-Capital Sofia
5.53.240.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Burgas Burgas
37.63.40.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Burgas Burgas
37.63.64.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
37.63.104.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
46.232.152.0/21 2.0K
94.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.200.0/21 2.0K
0.2%
A1 Bulgaria EAD BG Veliko Tarnovo Veliko Tarnovo
78.83.216.0/21 2.0K
10.5%
A1 Bulgaria EAD BG Varna Varna
78.83.248.0/21 2.0K
99.8%
A1 Bulgaria EAD BG Varna Varna
84.242.152.0/21 2.0K
0.3%
A1 Bulgaria EAD BG Sofia-Capital Sofia
84.242.168.0/21 2.0K
49.6%
A1 Bulgaria EAD BG — —
85.196.152.0/21 2.0K
0.1%
A1 Bulgaria EAD BG — —
85.196.184.0/21 2.0K
0.5%
A1 Bulgaria EAD BG Sofia-Capital Sofia
87.227.184.0/21 2.0K
85.9%
A1 Bulgaria EAD BG Sofia-Capital Sofia
87.227.208.0/21 2.0K
12.5%
A1 Bulgaria EAD BG Sofia-Capital Sofia
88.203.192.0/21 2.0K
1.4%
A1 Bulgaria EAD BG Sofia-Capital Sofia
88.203.216.0/21 2.0K
62.6%
A1 Bulgaria EAD BG Sofia-Capital Sofia
88.203.224.0/21 2.0K
59.4%
A1 Bulgaria EAD BG Sofia-Capital Sofia
92.247.152.0/21 2.0K
0.1%
A1 Bulgaria EAD BG Sofia-Capital Sofia
92.247.200.0/21 2.0K
99.7%
A1 Bulgaria EAD BG Sofia-Capital Sofia
130.204.128.0/21 2.0K
93.4%
A1 Bulgaria EAD BG Sofia-Capital Sofia
151.251.104.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
151.251.128.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
176.12.0.0/21 2.0K
100.0%
A1 Bulgaria EAD BG Burgas Burgas
37.63.36.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Varna Varna
37.63.72.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
37.63.100.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
46.238.0.0/22 1.0K
92.9%
A1 Bulgaria EAD BG Sofia-Capital Sofia
77.70.120.0/22 1.0K
1.2%
A1 Bulgaria EAD BG — —
78.83.152.0/22 1.0K
0.4%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.176.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.90.40.0/22 1.0K
0.7%
A1 Bulgaria EAD BG — —
78.90.108.0/22 1.0K
0.8%
A1 Bulgaria EAD BG — —
78.90.156.0/22 1.0K
0.4%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.90.236.0/22 1.0K
0.4%
A1 Bulgaria EAD BG Sofia-Capital Sofia
82.147.156.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
85.196.140.0/22 1.0K
99.1%
A1 Bulgaria EAD BG Ruse Rousse
85.196.172.0/22 1.0K
25.3%
A1 Bulgaria EAD BG Sofia-Capital Sofia
85.196.176.0/22 1.0K
0.4%
A1 Bulgaria EAD BG — —
87.97.160.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
87.97.240.0/22 1.0K
50.0%
A1 Bulgaria EAD BG Burgas Burgas
87.227.128.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
87.227.180.0/22 1.0K
97.7%
A1 Bulgaria EAD BG Varna Varna
87.227.196.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Varna Varna
87.227.200.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
87.227.220.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Varna Varna
88.203.180.0/22 1.0K
64.7%
A1 Bulgaria EAD BG Plovdiv Rakovski
88.203.244.0/22 1.0K
0.1%
A1 Bulgaria EAD BG Veliko Tarnovo Veliko Tarnovo
88.203.252.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Veliko Tarnovo Veliko Tarnovo
89.186.204.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
89.215.8.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
89.215.48.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
89.215.236.0/22 1.0K
23.9%
A1 Bulgaria EAD BG Veliko Tarnovo Veliko Tarnovo
92.247.96.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Veliko Tarnovo Gorna Oryahovitsa
92.247.116.0/22 1.0K
0.5%
A1 Bulgaria EAD BG Sofia-Capital Sofia
92.247.136.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
92.247.172.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
92.247.196.0/22 1.0K
99.9%
A1 Bulgaria EAD BG Varna Varna
130.204.136.0/22 1.0K
70.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
130.204.252.0/22 1.0K
94.1%
A1 Bulgaria EAD BG Sofia-Capital Sofia
151.251.76.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
151.251.96.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
151.251.112.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
151.251.136.0/22 1.0K
0.0%
A1 Bulgaria EAD BG — —
176.12.8.0/22 1.0K
100.0%
A1 Bulgaria EAD BG Varna Varna
195.34.116.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
217.79.44.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Varna Varna
37.63.76.0/23 512
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
46.238.4.0/23 512
93.8%
A1 Bulgaria EAD BG Varna Varna
46.238.24.0/23 512
96.3%
A1 Bulgaria EAD BG — —
62.204.138.0/23 512
0.4%
A1 Bulgaria EAD BG Sofia-Capital Sofia
77.70.72.0/23 512
0.6%
A1 Bulgaria EAD BG — —
77.70.124.0/23 512
1.0%
A1 Bulgaria EAD BG — —
78.83.4.0/23 512
15.0%
A1 Bulgaria EAD BG — —
78.83.14.0/23 512
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.136.0/23 512
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.162.0/23 512
97.3%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.166.0/23 512
0.2%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.170.0/23 512
1.6%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.182.0/23 512
0.2%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.186.0/23 512
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.188.0/23 512
0.2%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.83.196.0/23 512
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
78.90.38.0/23 512
0.6%
A1 Bulgaria EAD BG — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS29580 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
84.242.187.0/24 986,527 2026-07-23 15:48:33
84.242.177.0/24 986,342 2026-07-23 15:48:33
85.91.144.0/24 986,218 2026-07-23 15:48:33
87.97.163.0/24 986,059 2026-07-23 16:17:51
82.147.159.0/24 986,005 2026-07-23 15:48:33
84.242.150.0/24 985,986 2026-07-23 15:48:33
85.91.158.0/23 985,863 2026-07-23 15:48:33
82.147.157.0/24 985,639 2026-07-23 15:48:33
77.70.110.0/24 985,577 2026-07-23 15:48:34
87.97.162.0/24 985,567 2026-07-23 16:17:54
85.91.153.0/24 985,544 2026-07-23 15:48:33
85.130.78.0/24 985,508 2026-07-23 16:17:52
83.97.27.0/24 985,402 2026-07-23 15:48:33
85.196.140.0/22 985,370 2026-07-23 15:48:33
85.196.184.0/21 985,240 2026-07-23 15:48:33
85.91.157.0/24 985,218 2026-07-23 15:48:33
85.118.89.0/24 985,207 2026-07-23 15:48:33
87.227.130.0/23 985,041 2026-07-23 15:48:33
88.203.245.0/24 984,895 2026-07-23 15:48:33
88.203.225.0/24 984,809 2026-07-23 15:48:33
87.227.194.0/23 984,802 2026-07-23 15:48:33
88.203.193.0/24 984,702 2026-07-23 15:48:33
88.203.207.0/24 984,669 2026-07-23 15:48:33
77.236.182.0/24 984,666 2026-07-23 15:48:33
85.91.145.0/24 984,566 2026-07-23 15:48:33
88.203.138.0/24 984,506 2026-07-23 15:48:33
85.130.77.0/24 984,493 2026-07-23 16:17:52
84.242.129.0/24 984,442 2026-07-23 15:48:33
88.203.228.0/24 984,385 2026-07-23 15:48:33
88.203.160.0/20 984,374 2026-07-23 15:48:33
87.227.178.0/23 984,175 2026-07-23 15:48:33
78.90.43.0/24 984,148 2026-07-23 16:17:51
85.91.136.0/23 984,063 2026-07-23 15:48:33
82.147.146.0/23 984,040 2026-07-23 15:48:33
84.242.178.0/23 983,991 2026-07-23 15:48:33
87.227.141.0/24 983,914 2026-07-23 15:48:33
87.227.170.0/23 983,873 2026-07-23 15:48:33
88.203.199.0/24 983,871 2026-07-23 15:48:33
87.227.184.0/21 983,737 2026-07-23 15:48:33
85.91.155.0/24 983,733 2026-07-23 15:48:33
85.196.137.0/24 983,684 2026-07-23 15:48:33
89.215.50.0/24 983,669 2026-07-23 15:48:33
89.215.10.0/24 983,633 2026-07-23 15:48:33
77.70.34.0/24 983,610 2026-07-23 15:48:33
92.247.189.0/24 983,461 2026-07-23 15:48:33
92.247.132.0/24 983,367 2026-07-23 15:48:33
88.203.133.0/24 983,328 2026-07-23 15:48:33
87.227.129.0/24 983,320 2026-07-23 15:48:33
83.97.26.0/24 983,290 2026-07-23 15:48:33
89.190.206.0/24 983,279 2026-07-23 15:48:33

Showing top 50 of 607 announced prefixes by sample volume.

Frequently Asked Questions

What is AS29580?

AS29580 is an Autonomous System Number assigned to A1 Bulgaria EAD. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS29580 announce?

AS29580 announces 263.2K IPv4 addresses distributed across 282 routed CIDR prefixes. The network is registered in Bulgaria.

Who operates AS29580?

AS29580 is operated by A1 Bulgaria EAD. The organization is based in Bulgaria. You can view all IP ranges and related ASNs on the organization page.

What country is AS29580 registered in?

AS29580 is registered in Bulgaria. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 16:25:31 UTC
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