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Autonomous System

AS13124

A1 Bulgaria EAD

A1 Bulgaria EAD Bulgaria 🌐 a1.bg
Announced IPs
308,479
CIDR prefixes
200
ASN
AS13124

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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 50-100Gbps
Geographic scope Regional
Traffic ratio Balanced
Peering policy Restrictive
IRR record AS-IBGC
Website ↗

AS13124 — global IP footprint

Cities where AS13124 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
89.215.64.0/18 16.4K
0.0%
A1 Bulgaria EAD BG Pleven Pleven
130.204.0.0/18 16.4K
93.5%
A1 Bulgaria EAD BG Sofia-Capital Sofia
5.53.128.0/19 8.2K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
5.53.192.0/19 8.2K
0.0%
A1 Bulgaria EAD BG Plovdiv Plovdiv
85.130.0.0/19 8.2K
12.2%
A1 Bulgaria EAD BG Shumen Shumen
87.97.128.0/19 8.2K
33.2%
A1 Bulgaria EAD BG Targovishte Targovishte
87.97.192.0/19 8.2K
99.6%
A1 Bulgaria EAD BG Plovdiv Plovdiv
89.215.64.0/19 8.2K
0.0%
A1 Bulgaria EAD BG Plovdiv Plovdiv
89.215.128.0/19 8.2K
47.0%
A1 Bulgaria EAD BG Kyustendil Kyustendil
89.253.128.0/19 8.2K
100.0%
A1 Bulgaria EAD BG Stara Zagora Stara Zagora
130.204.96.0/19 8.2K
91.2%
A1 Bulgaria EAD BG Sofia-Capital Sofia
130.204.160.0/19 8.2K
93.6%
A1 Bulgaria EAD BG Sofia-Capital Sofia
151.251.0.0/19 8.2K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
213.240.192.0/19 8.2K
23.0%
A1 Bulgaria EAD BG Varna Varna
5.53.160.0/20 4.1K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
62.221.144.0/20 4.1K
91.1%
A1 Bulgaria EAD BG Plovdiv Plovdiv
77.244.192.0/20 4.1K
56.8%
A1 Bulgaria EAD BG Dobrich Dobrich
84.252.16.0/20 4.1K
0.0%
A1 Bulgaria EAD BG Pazardzhik Panagyurishte
87.97.224.0/20 4.1K
94.5%
A1 Bulgaria EAD BG Plovdiv Plovdiv
89.215.16.0/20 4.1K
11.7%
A1 Bulgaria EAD BG Sofia-Capital Sofia
89.215.96.0/20 4.1K
11.7%
A1 Bulgaria EAD BG Plovdiv Rakovski
89.215.192.0/20 4.1K
46.7%
A1 Bulgaria EAD BG Burgas Sunny Beach
89.253.176.0/20 4.1K
0.0%
A1 Bulgaria EAD BG Ruse Rousse
130.204.80.0/20 4.1K
93.6%
A1 Bulgaria EAD BG Sofia-Capital Sofia
130.204.144.0/20 4.1K
92.7%
A1 Bulgaria EAD BG Sofia-Capital Sofia
130.204.192.0/20 4.1K
87.7%
A1 Bulgaria EAD BG Sofia-Capital Sofia
130.204.224.0/20 4.1K
0.0%
A1 Bulgaria EAD BG Pazardzhik Panagyurishte
151.251.80.0/20 4.1K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
151.251.208.0/20 4.1K
0.0%
A1 Bulgaria EAD BG Gabrovo Gabrovo
213.191.176.0/20 4.1K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
5.53.184.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Montana Lom
5.53.224.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Plovdiv Kaloyanovo
5.53.248.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Pleven Pleven
37.130.240.0/21 2.0K
24.4%
A1 Bulgaria EAD BG — —
77.236.160.0/21 2.0K
0.0%
A1 Bulgaria EAD BG — —
77.236.184.0/21 2.0K
0.0%
A1 Bulgaria EAD BG — —
84.252.32.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
84.252.56.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Pleven Pleven
85.91.128.0/21 2.0K
99.7%
A1 Bulgaria EAD BG Sofia-Capital Sofia
85.130.32.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Kyustendil Kocherinovo
85.130.48.0/21 2.0K
87.5%
A1 Bulgaria EAD BG Pazardzhik Velingrad
85.130.64.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Shumen Shumen
85.130.80.0/21 2.0K
99.9%
A1 Bulgaria EAD BG Haskovo Dimitrovgrad
85.130.112.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Plovdiv Plovdiv
87.97.168.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Burgas Nesebar
87.97.184.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
87.97.248.0/21 2.0K
71.9%
A1 Bulgaria EAD BG Plovdiv Plovdiv
89.215.0.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Ruse Rousse
89.215.32.0/21 2.0K
0.0%
A1 Bulgaria EAD BG — —
89.215.112.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Plovdiv Kuklen
89.215.160.0/21 2.0K
93.7%
A1 Bulgaria EAD BG Pazardzhik Pazardzhik
89.215.184.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Pleven Pleven
89.215.216.0/21 2.0K
34.4%
A1 Bulgaria EAD BG Plovdiv Plovdiv
89.215.248.0/21 2.0K
70.8%
A1 Bulgaria EAD BG Pleven Pleven
130.204.224.0/21 2.0K
93.7%
A1 Bulgaria EAD BG Plovdiv Plovdiv
130.204.240.0/21 2.0K
93.9%
A1 Bulgaria EAD BG Sofia-Capital Sofia
151.251.48.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
212.104.96.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Ruse Rousse
213.191.160.0/21 2.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
5.53.232.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Plovdiv Trud
62.221.136.0/22 1.0K
0.0%
A1 Bulgaria EAD BG — —
77.236.172.0/22 1.0K
0.0%
A1 Bulgaria EAD BG — —
80.253.60.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Pleven Pleven
84.252.4.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Stara Zagora Stara Zagora
84.252.8.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Blagoevgrad Petrich
84.252.44.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Pazardzhik Velingrad
84.252.48.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Burgas Aytos
85.130.40.0/22 1.0K
0.0%
A1 Bulgaria EAD BG — —
85.130.56.0/22 1.0K
100.0%
A1 Bulgaria EAD BG Lovech Lovech
85.130.88.0/22 1.0K
10.3%
A1 Bulgaria EAD BG Pleven Pleven
85.130.100.0/22 1.0K
100.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
85.130.104.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Pleven Pleven
85.130.124.0/22 1.0K
25.0%
A1 Bulgaria EAD BG Pazardzhik Panagyurishte
87.97.164.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Plovdiv Hisarya
87.97.180.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
87.97.244.0/22 1.0K
100.0%
A1 Bulgaria EAD BG Vratsa Kozloduy
89.186.200.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Ruse Rousse
89.215.12.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Pleven Pleven
89.215.44.0/22 1.0K
0.0%
A1 Bulgaria EAD BG — —
89.215.52.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Plovdiv Plovdiv
89.215.56.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Ruse Rousse
89.215.120.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Pleven Pleven
89.215.180.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Pazardzhik Peshtera
89.215.224.0/22 1.0K
47.3%
A1 Bulgaria EAD BG Plovdiv Plovdiv
89.215.240.0/22 1.0K
0.4%
A1 Bulgaria EAD BG Plovdiv Hisarya
89.253.164.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Shumen Shumen
89.253.168.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Burgas Kosharitsa
95.140.220.0/22 1.0K
24.5%
A1 Bulgaria EAD BG Pazardzhik Velingrad
130.204.212.0/22 1.0K
93.6%
A1 Bulgaria EAD BG Sofia-Capital Sofia
130.204.220.0/22 1.0K
93.4%
A1 Bulgaria EAD BG Sofia-Capital Sofia
130.204.248.0/22 1.0K
95.0%
A1 Bulgaria EAD BG Sofia-Capital Sofia
194.187.132.0/22 1.0K
93.6%
A1 Bulgaria EAD BG — —
212.104.104.0/22 1.0K
0.0%
A1 Bulgaria EAD BG Pazardzhik Panagyurishte
212.104.112.0/22 1.0K
93.7%
A1 Bulgaria EAD BG Razgrad Razgrad
212.104.120.0/22 1.0K
93.2%
A1 Bulgaria EAD BG — —
213.240.252.0/22 1.0K
24.4%
A1 Bulgaria EAD BG Pleven Pleven
5.53.178.0/23 512
0.0%
A1 Bulgaria EAD BG — —
5.53.236.0/23 512
0.0%
A1 Bulgaria EAD BG — —
62.221.130.0/23 512
0.0%
A1 Bulgaria EAD BG — —
62.221.134.0/23 512
0.0%
A1 Bulgaria EAD BG Plovdiv Sopot

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS13124 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
130.204.142.0/24 1,450,436 2026-09-10 18:09:51
5.53.160.0/21 30,964 2026-09-10 18:09:34
130.204.160.0/20 29,886 2026-09-10 18:09:34
80.253.58.0/24 29,334 2026-09-10 18:08:18
84.252.50.0/24 29,238 2026-09-10 18:08:18
84.252.51.0/24 29,229 2026-09-10 18:08:18
84.252.49.0/24 29,211 2026-09-10 18:08:18
84.252.48.0/24 29,174 2026-09-10 18:08:18
5.53.178.0/24 28,377 2026-09-10 18:08:47
5.53.179.0/24 28,364 2026-09-10 18:08:47
87.97.190.0/23 27,771 2026-09-10 18:07:49
87.97.245.0/24 27,463 2026-09-10 18:07:36
87.97.247.0/24 27,367 2026-09-10 18:07:36
87.97.188.0/23 27,279 2026-09-10 18:07:49
87.97.178.0/24 27,274 2026-09-10 18:07:49
5.53.185.0/24 27,269 2026-09-10 18:07:49
85.130.44.0/24 27,227 2026-09-10 18:07:49
5.53.184.0/24 27,217 2026-09-10 18:07:49
89.215.169.0/24 27,194 2026-09-10 18:08:18
85.130.42.0/24 27,188 2026-09-10 18:07:49
85.130.40.0/24 27,147 2026-09-10 18:07:49
89.215.124.0/22 27,120 2026-09-10 18:08:47
130.204.236.0/24 27,049 2026-09-10 18:08:47
87.97.216.0/21 27,021 2026-09-10 18:07:36
87.97.252.0/22 27,021 2026-09-10 18:07:49
130.204.234.0/23 27,015 2026-09-10 18:08:47
130.204.232.0/23 27,003 2026-09-10 18:08:47
87.97.244.0/24 26,934 2026-09-10 18:07:36
89.215.190.0/23 26,905 2026-09-10 18:08:18
151.251.125.0/24 26,806 2026-09-10 18:08:47
84.252.8.0/23 26,805 2026-09-10 18:08:18
5.53.222.0/23 26,668 2026-09-10 18:07:36
62.221.134.0/23 26,641 2026-09-10 18:08:18
84.252.12.0/23 26,614 2026-09-10 18:08:18
62.221.156.0/23 26,585 2026-09-10 18:08:18
62.221.138.0/24 26,566 2026-09-10 18:08:18
62.221.136.0/23 26,556 2026-09-10 18:08:18
62.221.142.0/23 26,551 2026-09-10 18:08:18
5.53.204.0/22 26,550 2026-09-10 18:07:36
5.53.196.0/22 26,532 2026-09-10 18:07:36
85.130.109.0/24 26,531 2026-09-10 18:07:49
87.97.180.0/23 26,518 2026-09-10 18:07:49
5.53.192.0/22 26,501 2026-09-10 18:07:36
85.130.92.0/23 26,477 2026-09-10 18:07:36
85.130.91.0/24 26,410 2026-09-10 18:07:36
5.53.216.0/22 26,409 2026-09-10 18:07:36
84.252.15.0/24 26,334 2026-09-10 18:08:18
84.252.10.0/24 26,304 2026-09-10 18:08:18
89.215.247.0/24 26,231 2026-09-10 18:08:18
89.215.224.0/23 25,898 2026-09-10 18:08:18

Showing top 50 of 441 announced prefixes by sample volume.

Frequently Asked Questions

What is AS13124?

AS13124 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 AS13124 announce?

AS13124 announces 308.5K IPv4 addresses distributed across 200 routed CIDR prefixes. The network is registered in Bulgaria.

Who operates AS13124?

AS13124 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 AS13124 registered in?

AS13124 is registered in Bulgaria. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-10 18:11:07 UTC
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