$ query “AS328357” --type=asn → 1 result(s)
AS328357 · CASTLENET-AS
Castlenet Consulting Limited
AS328357 belongs to Castlenet Consulting Limited and is an enterprise stub network, based in Nigeria since 2018. The system announces 512 IPv4 addresses. Most of its address space is geolocated to Nigeria. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇳🇬 Nigeria
- Category
- Business
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- August 24, 2018
- Last Changed
- May 10, 2026
- Last Seen
- June 22, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 1 / 1
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 512
- Largest IPv4 Prefix
- /23 (512 addresses)
- Geolocated Countries
- 🇳🇬 Nigeria (512 IPs)
- Prefix Changed
- March 30, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 1 upstream providing transit
- Degree
- 1 unique BGP neighbor
- Reach
- 0 networks in customer cone
Upstream Providers (1)
- AS37480 — AF-ASNUM
Prefix Lists
IPv4 Prefixes (1 total)
- 102.131.36.0/23 (512 addresses (/23 prefix))