Autonomous system
AS219265 FROP-AS Tjerk Jan Vonk
Unclassified RIPE Educational/Research
Summary
FROP-AS
research regional netherlands
FROP-AS is operated by Tjerk Jan Vonk.
What it's used for
- The address space carries research and educational traffic, identified by the netname
FROP4NETand the registrantFROP Blackhole Operations. - The AS announces 256 IPv4 addresses and 1 IPv6 prefix, maintaining 27 observed neighbours; this ratio of limited address space against a moderate number of peers indicates a regional research network rather than a large-scale access provider.
- Traffic from this AS consists of academic and research endpoints associated with the FROP network infrastructure.
Notable
- The RDAP registrant
Tjerk Jan Vonkand the netnameFROP4NETalign with the AS holder, confirming consistent ownership of the announced space. - The inventory consists of a single IPv4 prefix,
150.251.61.0/24, and a single IPv6 prefix,2001:67c:2240::/48, representing a compact and focused address allocation.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| The Frys Internet Exchange | Frysian, Netherlands | 2001:7f8:10f::3:5881:128 |
Transit providers
8 upstream, 0 downstream and 12 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-04, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NL | Netherlands | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS219265- Registry name
- FROP-AS
- Registrant
- FROP-MNT
- Abuse contact
- ripe.net-abuse@decramy.net
- Registered
- 2026-07-07
- Last changed
- 2026-10-05
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- fropnet
- Also known as
- decramy.nl
- Network type
- Educational/Research
- Scope
- Regional
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- IRR as-set
RIPE::AS219265:AS-FROP- Present at
- 2 exchanges
- Facilities
- 1 facilities
- Website
- https://fropnet.nl
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 2 valid, 0 with no ROA
- ROAs
- 2 authorising AS219265
- ASPA
- 3 declared providers
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS219265
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 453 networks and 1,853 prefixes, as published 2026-11-05. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere