Autonomous system
AS41435 UNDERNET-AS1 UnderNet LLC
Unclassified RIPE
Summary
UnderNet
isp residential cable dsl
UNDERNET-AS1 is operated by UnderNet LLC.
What it's used for
- The address space carries subscriber traffic, evidenced by reverse DNS entries like
s-176-104-31-255.under.net.uaand netnames such asUNDERNET-NET4andUNDERNET-NET2. - The AS announces 21,760 IPv4 addresses across 7 prefixes and maintains 47 observed neighbours, a ratio consistent with a regional access provider rather than a transit hub.
- Traffic from this network consists of residential and business subscribers in Ukraine accessing the internet via cable and DSL connections.
Notable
- All registrants for the announced prefixes are listed as UnderNet LLC, matching the AS holder.
- The address inventory is composed of multiple distinct blocks, including a large /18 and several smaller /21, /22, and /23 allocations, all registered to the same entity.
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
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Giganet Internet Exchange | Kyiv, Ukraine | 185.1.62.153 |
| GNM Internet Exchange Ukraine | Kiev, Ukraine | 178.18.230.123 |
Transit providers
10 upstream, 8 downstream and 25 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-04, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 21.76K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| UA | Ukraine | 8 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS41435- Registry name
- UNDERNET-AS1
- Registrant
- NETUNDER-MNT
- Abuse contact
- abuse@under.net.ua
- Registered
- 2006-08-21
- Last changed
- 2025-11-03
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 24 valid, 0 with no ROA
- ROAs
- 33 authorising AS41435
- ASPA
- no ASPA record
- IRR
- 100% registered · 24 of 24 announcements
- Route objects
- 43 naming AS41435
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 1,853 prefixes, as published 2026-11-05. 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