$ query “AS37451” --type=asn → 1 result(s)
AS37451 · CONGOTELECOM
CONGO TELECOM
AS37451 is operated by CONGO TELECOM and serves as a mid-size transit provider, based in Congo - Brazzaville. The system announces 9 216 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to Congo - Brazzaville, with additional presence in the United Kingdom and the United States, and smaller footprints in 2 additional countries.
- #1 in Congo - Brazzaville — Top 10 by reach within country
Basic Information
- Country
- 🇨🇬 Congo - Brazzaville
- Category
- Internet Service Provider
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- March 04, 2026
- Last Seen
- August 26, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 36 / 12
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 9 216
- Largest IPv4 Prefix
- /20 (4 096 addresses)
- Largest IPv6 Prefix
- /48
- Geolocated Countries
- 🇨🇬 Congo - Brazzaville (8 448 IPs), 🇬🇧 United Kingdom (4 608 IPs), 🇺🇸 United States (768 IPs) and 2 more
- Prefix Changed
- August 08, 2026
Reputation
- Reputation
- Good — 5 flagged IPs out of 9 216 total (0.05%)
Connectivity Summary
- Upstream Providers
- 3 upstreams providing transit
- Peers
- 3 networks exchanging traffic without transit
- Downstream Customers
- 14 downstreams buying transit
- Unclassified
- 3 unclassified BGP neighbors
- Degree
- 23 unique BGP neighbors
- Reach
- 39 285 networks in customer cone
Upstream Providers (3)
Prefix Lists
IPv4 Prefixes (36 total)
- 102.129.64.0/20 (4 096 addresses (/20 prefix))
- 102.129.88.0/22 (1 024 addresses (/22 prefix))
- 197.157.252.0/22 (1 024 addresses (/22 prefix))
- 102.129.84.0/23 (512 addresses (/23 prefix))
- 102.129.92.0/23 (512 addresses (/23 prefix))
- 154.53.210.0/23 (512 addresses (/23 prefix))
- 102.129.81.0/24 (256 addresses (/24 prefix))
- 102.129.82.0/24 (256 addresses (/24 prefix))
- 102.129.87.0/24 (256 addresses (/24 prefix))
- 102.129.94.0/24 (256 addresses (/24 prefix))
- 102.213.232.0/24 (256 addresses (/24 prefix))
- 154.53.209.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (1 total)
- 2c0f:f568::/48