Autonomous system
AS49033 CRITICALCORE
Unclassified RIPE
Summary
Critical Core
transit nsp ip netherlands
CRITICALCORE is operated by Critical Core BV.
What it's used for
- The address space carries static IP infrastructure, with reverse DNS entries consistently pointing to
static.ritesim.comacross multiple prefixes. - The AS announces 14,592 IPv4 addresses and 2 IPv6 prefixes, maintaining 81 observed neighbours, a ratio indicative of a transit or network service provider role.
- As a Network Service Provider (NSP) in Europe, the traffic consists of IP transit and connectivity services for other networks and enterprises.
Notable
- Registrants include Critical Core BV for most prefixes, while others are registered to Scalia B.V. and Ritesim.com Limited.
- The inventory consists of 15 IPv4 prefixes, mostly /22 blocks, with a single /24, reflecting a fragmented but substantial address estate.
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 3 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.116.220 |
| Speed Internet Exchange | Dronten, Netherlands | 185.1.222.89 |
| ERA-IX Amsterdam | Amsterdam, Netherlands | 185.1.240.34 |
Transit providers
24 upstream, 1 downstream and 38 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 2026-10-27, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 15 prefixes · 14.59K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NL | Netherlands | 17 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS49033- Registry name
- CRITICALCORE
- Registrant
- MNT-SMARTROUTING
- Abuse contact
- abuse@criticalcore.nl
- Registered
- 2016-10-04
- Last changed
- 2025-12-03
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 17 valid, 0 with no ROA
- ROAs
- 34 authorising AS49033
- ASPA
- no ASPA record
- IRR
- 100% registered · 17 of 17 announcements
- Route objects
- 85 naming AS49033
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: 447 networks and 1,852 prefixes, as published 2026-10-27. 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