Autonomous system
AS13307 SKIF-AS
Unclassified RIPE
Summary
Skif
isp telecom business
Every sampled address answered, and the names give away the routers, the broadcast addresses and someone's sense of humour.
What it's used for
- A Ukrainian access network. 7,168 addresses across nine IPv4 prefixes, one IPv6 prefix
2a01:6d80::/36, and twelve observed BGP neighbours.
Notable
- All eighteen sampled addresses returned a name, including
subnet-vanda-91-90-17-0,bcast-titan-91-90-17-255,bcast-begemot-pulya,glassoandempty-195-140-170-254, all underskif.com.ua. - All nine blocks carry the single netname
UA-XAIM. - The registrant on every block is a company whose registered name is
"AS6723" LIMITED LIABILITY COMPANY, quotation marks included.
Interesting
- The zone distinguishes network addresses, broadcast addresses, unused addresses and customer addresses by prefix, and tags several of them with the router they hang off. That is an operator using reverse DNS as a live map of its own network, which is rare and immediately useful to anyone reading a traceroute.
- Some of those router names are pets rather than plans. A network that labels equipment this way is one where the same small team has been naming things for a long time.
- A company legally named after an autonomous system number, and a different number than the one it operates here, is a registration that will confuse every automated lookup that meets it.
- Nine blocks under one netname says the label describes the holder, not the allocation.
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, 7 downstream and 11 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS6723 | "AS6723" LIMITED LIABILITY COMPANY | 632 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 9 prefixes · 7.17K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| UA | Ukraine | 10 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS13307- Registry name
- SKIF-AS
- Registrant
- "AS6723" LIMITED LIABILITY COMPANY
- Abuse contact
- abuse@as6723.net
- Registered
- 2002-10-29
- Last changed
- 2026-09-25
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 10 valid, 0 with no ROA
- ROAs
- 9 authorising AS13307
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 39 naming AS13307
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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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