Autonomous system
AS31497 CMVM-PT-AS
Unclassified RIPE
Summary
CMVM
government regulatory financial single-site
The AS handle CMVM-PT-AS is held by Comissão do Mercado de Valores Mobiliários.
What it's used for
- The space carries internal corporate infrastructure for the Portuguese securities regulator, identified by the netname
CMVM-PT-NETand registrantComissao do Mercado de Valores Mobiliarios. - The inventory consists of a single IPv4 prefix, 193.16.103.0/24, announcing 256 addresses with 0 IPv6 prefixes. With only 2 observed neighbours, the low address-to-neighbour ratio indicates a small, self-contained internal network rather than a transit or access provider.
Notable
- The RDAP registrant
Comissao do Mercado de Valores Mobiliariosmatches the AS holder exactly, confirming direct ownership of the address space. - The address inventory is a single contiguous /24 block, typical of a dedicated corporate or government allocation for a specific site or department.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PT | Portugal | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS31497- Registry name
- CMVM-PT-AS
- Registrant
- AS2860-MNT
- Abuse contact
- csirt@cmvm.pt
- Registered
- 2004-05-28
- Last changed
- 2026-07-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS31497
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS31497
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: 442 networks and 1,773 prefixes, as published 2026-10-13. 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