Autonomous system
AS16288 KABUM_AS Sfires Software & Hardware Dariusz Swiderski
Unclassified RIPE
Summary
Sfires Software & Hardware
business isp hosting
Three names for one small network, and the netname is four letters that match none of them.
What it's used for
- A sole trader's network. A single IPv4 prefix announced from Poland, no IPv6, two hundred and fifty-six addresses, through one observed BGP neighbour.
Notable
- The AS handle is one brand, an underscore, the letters for an autonomous system, and then a second brand written as a domain with its suffix included.
- The holder field uses neither. It is a trading name describing what the business sells, followed by a private individual's name, so the registry records a person rather than a company.
- The netname is two pairs of letters and the word for a network. Neither pair appears in the handle or the holder field, which leaves the block's own label unexplained by the rest of the record.
- The block is registered to the trading name and to an abuse contact, with nothing else attached.
- Three addresses were queried for reverse DNS and none returned a name.
Interesting
- A one-person business with its own number and one block has bought portability. The addresses survive a change of provider, which is worth more to a small operator than to a large one, because a small operator changes provider more often.
- Two brands in the handle and a third label on the block is what happens when somebody runs several ventures from one registration. Each name was current when its field was written, and no field is ever revisited.
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 |
|---|---|---|
| AS43476 | leniwiec.biz Grzegorz Kulewski | 57 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-11, 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 |
|---|---|---|
| PL | Poland | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS16288- Registry name
- KABUM_AS
- Registrant
- KABUM-MNT
- Abuse contact
- sfires@sfires.net
- Registered
- 2001-12-11
- Last changed
- 2025-03-03
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS16288
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS16288
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 1,846 prefixes, as published 2026-11-11. 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