$ query “AS21320” --type=asn → 1 result(s)
AS21320 — GEANT-IAS-VRF
GEANT Vereniging
AS21320 is a mid-size transit provider registered to GEANT Vereniging, based in the Netherlands since 2001. The network announces 2 048 IPv4 addresses. No IPv6 support — it's 2026, just saying.
- Top 5% — Top 5% of all autonomous systems by reach and degree
Basic Information
- Country
- 🇳🇱 Netherlands
- Category
- Hosting
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- October 31, 2001
- Last Changed
- March 04, 2026
- Last Seen
- March 04, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 1 / 1
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 2 048
- Largest IPv4 Prefix
- /21 (2 048 addresses)
- Geolocated Countries
- 🇬🇧 GB (2 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs out of 2 048 total (0.00%)
Connectivity Summary
- Upstream Providers
- 2 upstream autonomous systems providing transit
- Peers
- 115 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 35 downstream autonomous systems buying transit
- Degree
- 152 unique BGP neighbors (providers + customers + peers)
- Reach
- 1 232 — customer cone size measuring network influence
- Degree Rank
- #940
- Reach Rank
- #655
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (1 total)
- 83.97.88.0/21 (2 048 addresses)