$ query “AS29580” --type=asn → 1 result(s)

AS29580 — A1BG-RSG

A1 Bulgaria EAD

AS29580 is a stub network run by A1 Bulgaria EAD, established in Bulgaria in 2003. The network announces a solid 257 536 IPv4 addresses. Supports IPv6.

Basic Information

Country
🇧🇬 Bulgaria
Category
Internet Service Provider
Network Role
Stub Network
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
October 15, 2003
Last Changed
March 04, 2026
Last Seen
March 05, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
592 / 267
IPv6 Prefixes (raw / aggregated)
15 / 7
IPv4 Addresses
257 536
Largest IPv4 Prefix
/18 (16 384 addresses)
Largest IPv6 Prefix
/35
Geolocated Countries
🇧🇬 BG (268 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Good — 6 flagged IPs out of 257 536 total (0.00%)

Connectivity Summary

Upstream Providers
1 upstream autonomous systems providing transit
Peers
0 autonomous systems exchanging traffic without transit fees
Downstream Customers
0 downstream autonomous systems buying transit
Degree
1 unique BGP neighbors (providers + customers + peers)
Reach
0 — customer cone size measuring network influence
Degree Rank
#57 431

Upstream Providers (1)

Prefix Lists

IPv4 Prefixes (592 total)

  • 78.83.64.0/18 (16 384 addresses)
  • 78.83.32.0/19 (8 192 addresses)
  • 87.227.224.0/19 (8 192 addresses)
  • 92.247.224.0/19 (8 192 addresses)
  • 151.251.160.0/19 (8 192 addresses)
  • 176.12.32.0/19 (8 192 addresses)
  • 37.63.48.0/20 (4 096 addresses)
  • 37.63.80.0/20 (4 096 addresses)
  • 37.63.112.0/20 (4 096 addresses)
  • 78.83.16.0/20 (4 096 addresses)
  • 87.227.160.0/20 (4 096 addresses)
  • 88.203.160.0/20 (4 096 addresses)
  • 92.247.48.0/20 (4 096 addresses)
  • 92.247.208.0/20 (4 096 addresses)
  • 130.204.64.0/20 (4 096 addresses)
  • 151.251.144.0/20 (4 096 addresses)
  • 176.12.16.0/20 (4 096 addresses)
  • 5.53.240.0/21 (2 048 addresses)
  • 37.63.40.0/21 (2 048 addresses)
  • 37.63.64.0/21 (2 048 addresses)
  • 37.63.104.0/21 (2 048 addresses)
  • 46.232.152.0/21 (2 048 addresses)
  • 78.83.200.0/21 (2 048 addresses)
  • 78.83.216.0/21 (2 048 addresses)
  • 78.83.248.0/21 (2 048 addresses)
  • 84.242.152.0/21 (2 048 addresses)
  • 84.242.168.0/21 (2 048 addresses)
  • 85.196.152.0/21 (2 048 addresses)
  • 85.196.184.0/21 (2 048 addresses)
  • 87.227.184.0/21 (2 048 addresses)
  • 87.227.208.0/21 (2 048 addresses)
  • 88.203.192.0/21 (2 048 addresses)
  • 88.203.216.0/21 (2 048 addresses)
  • 88.203.224.0/21 (2 048 addresses)
  • 92.247.152.0/21 (2 048 addresses)
  • 92.247.200.0/21 (2 048 addresses)
  • 130.204.128.0/21 (2 048 addresses)
  • 151.251.104.0/21 (2 048 addresses)
  • 151.251.128.0/21 (2 048 addresses)
  • 176.12.0.0/21 (2 048 addresses)
  • 37.63.36.0/22 (1 024 addresses)
  • 37.63.72.0/22 (1 024 addresses)
  • 37.63.100.0/22 (1 024 addresses)
  • 46.238.0.0/22 (1 024 addresses)
  • 78.83.152.0/22 (1 024 addresses)
  • 78.83.176.0/22 (1 024 addresses)
  • 78.90.40.0/22 (1 024 addresses)
  • 78.90.108.0/22 (1 024 addresses)
  • 78.90.156.0/22 (1 024 addresses)
  • 78.90.236.0/22 (1 024 addresses)

IPv6 Prefixes (15 total)

  • 2a00:4804:a000::/35
  • 2a00:4804:e000::/35
  • 2a00:4804:9000::/36
  • 2a00:4804:d000::/36
  • 2a00:4804:800::/37
  • 2a00:4804:4800::/37
  • 2a00:4804:8800::/37