Autonomous system
AS15997 ITSA ITSA Autonomous System
Residential RIPE
Summary
ITSA Intelligent Technologies
isp hosting business
Every block that could be looked up carries the same netname and the same date.
What it's used for
- A provider's network. Eleven IPv4 prefixes and one IPv6
/32announced from Poland, thirty-two thousand two hundred and fifty-six addresses, across thirty-two observed BGP neighbours.
Notable
- The AS handle repeats the brand twice and then adds the words for an autonomous system.
- Six blocks could be looked up and all six share one netname: country code, brand, and a single date. The three largest announcements and two others failed to fetch, so their details are unknown rather than absent.
- Reusing one netname across blocks of six different sizes means the registry records no distinction between them at all.
- Eighteen addresses were queried for reverse DNS and all eighteen answered, every one the four octets hyphenated on the same domain, across three unrelated address ranges.
- Thirty-two thousand addresses on eleven announcements behind thirty-two neighbours.
Interesting
- One name and one date on every block is a registration done in a single sitting, or a template pasted forward without editing. Either way the fields have stopped distinguishing anything.
- Reverse names built from the address itself scale to a whole network with one rule and no records to maintain, which is why a provider with thirty-two thousand addresses can answer on every single one of them without anybody tracking what is where.
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 3 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| TPIX - Internet Exchange | Warsaw, Poland | 195.149.234.16 |
| Equinix Internet Exchange Warsaw | Warsaw, Poland | 195.182.218.37 |
| Thinx IX | Warsaw, Poland | 212.91.0.110 |
Transit providers
9 upstream, 10 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 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 11 prefixes · 32.26K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PL | Poland | 12 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15997- Registry name
- ITSA
- Registrant
- ITSANET-MNT
- Abuse contact
- abuse@itsa.pl
- Registered
- 2002-09-19
- Last changed
- 2017-11-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS15997
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 5 naming AS15997
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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