Autonomous system
AS211432 improvizus "Improvizus" MB
Unclassified RIPE Cable/DSL/ISP
Summary
Improvizus
isp cable residential lithuania
The AS handle IMPROVIZUS is held by Improvizus MB.
What it's used for
- The address space carries IPv6 connectivity for a cable/DSL ISP, as indicated by the PeeringDB classification and the website
simoresta.lt. - The network announces 2 IPv6 prefixes (
2a0f:6740::/29,2a13:bfc0::/29) and 0 IPv4 prefixes, with 1 observed neighbour. - Traffic from this AS consists of residential subscriber traffic for cable and DSL services in Lithuania.
Notable
- The registry holder is listed as "Improvizus" MB, which aligns with the AS handle and PeeringDB entry.
- The address inventory is limited to two IPv6 /29 prefixes, suggesting a small-scale or regional provider.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS216213 | Lexistar Alliance Ltd. | 33 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 0 prefixes · 0 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| LT | Lithuania | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS211432- Registry name
- improvizus
- Registrant
- mnt-lt-improvizus1-1
- Abuse contact
- info@improvizus.lt
- Registered
- 2021-04-22
- Last changed
- 2023-09-27
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Improvizus
- Network type
- Cable/DSL/ISP
- Scope
- North America
- Traffic ratio
- Balanced
- Peering policy
- Open
- Website
- https://simoresta.lt
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 · 1 valid, 0 with no ROA
- ROAs
- 9 authorising AS211432
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 18 naming AS211432
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: 448 networks and 1,851 prefixes, as published 2026-11-03. 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