Autonomous system
AS199584 ASUMB
Unclassified RIPE
Summary
Miasto Bialystok
government municipal poland
ASUMB is held by Miasto Bialystok, the municipal government of Białystok.
What it's used for
- The address space carries municipal infrastructure, evidenced by the netname
PL-BIALYSTOK-20180717for the primary block andASUMBfor the secondary block. - The AS announces 1280 IPv4 addresses across 2 prefixes with only 2 observed neighbours, indicating a small, self-contained network rather than a transit or large-scale access provider.
- Traffic from this AS consists of internal municipal services and administrative endpoints for the city of Białystok.
Notable
- Registrants differ between the two prefixes:
Miasto Bialystokholds 193.84.124.0/22, whilePolitechnika Bialostockaholds 185.61.7.0/24, suggesting a shared or historically linked allocation between the city and the local university. - The inventory is small and fragmented, consisting of one /22 and one /24 block, typical of a specific organizational estate rather than a commercial ISP.
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 2026-10-27, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 1.28K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PL | Poland | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS199584- Registry name
- ASUMB
- Registrant
- CKSR1-MNT
- Abuse contact
- abuse@um.bialystok.pl
- Registered
- 2012-11-15
- Last changed
- 2026-07-24
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 20% valid · 1 valid, 4 with no ROA
- ROAs
- 1 authorising AS199584
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 7 naming AS199584
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: 446 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