AS15997 — ITSA ITSA Autonomous System

Network type: residential

AS15997 announces 11 IPv4 prefixes covering 32,256 addresses and 1 IPv6 prefixes.

About this network

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 /32 announced 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.

Announced prefixes

• 82.214.128.0/19
• 82.214.161.0/24
• 82.214.162.0/23
• 82.214.164.0/22
• 82.214.168.0/21
• 82.214.176.0/22
• 82.214.181.0/24
• 82.214.182.0/23
• 82.214.184.0/21
• 213.161.96.0/19
• 217.67.192.0/19
• 2001:40f0::/32

Upstream networks

• AS1299 Arelion Sweden AB
• AS3491 PCCW Global (HK) Ltd.
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS12741 Netia SA
• AS3356 Level 3 Parent, LLC
• AS24482 SG.GS
• AS57463 NetIX Communications JSC
• AS29632 Netassist International EOOD
• AS201054 Stowarzyszenie e-Poludnie

Downstream networks

• AS203707 DIGITAL UTILITIES SP Z O O
• AS209769 Simplifae Poland S.A.
• AS47396 Mazowiecka Jednostka Wdrazania Programow Unijnych
• AS199887 Centrum Unijnych Projektow Transportowych
• AS198289 KPMG sp. z o.o.
• AS15038 The Cambridge Incubator, LLC
• AS51064 Glowny Inspektorat Transportu Drogowego
• AS198782 SERVICES ZONE S.A.
• AS197671 GTECH POLSKA Sp. z o.o.
• AS198242 INVESTORS HOLDING SPOLKA AKCYJNA

Adjacent networks

• AS1299 Arelion Sweden AB
• AS3491 PCCW Global (HK) Ltd.
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS3356 Level 3 Parent, LLC
• AS47396 Mazowiecka Jednostka Wdrazania Programow Unijnych
• AS209769 Simplifae Poland S.A.
• AS203707 DIGITAL UTILITIES SP Z O O
• AS199887 Centrum Unijnych Projektow Transportowych
• AS198289 KPMG sp. z o.o.
• AS15038 The Cambridge Incubator, LLC
• AS12741 Netia SA
• AS57463 NetIX Communications JSC
• AS51064 Glowny Inspektorat Transportu Drogowego
• AS24482 SG.GS
• AS198782 SERVICES ZONE S.A.
• AS49559 A-Systems Sp. z o.o.
• AS29632 Netassist International EOOD
• AS197671 GTECH POLSKA Sp. z o.o.
• AS198242 INVESTORS HOLDING SPOLKA AKCYJNA
• AS201054 Stowarzyszenie e-Poludnie

Internet exchanges

• TPIX - Internet Exchange — Warsaw, Poland
• Equinix Internet Exchange Warsaw — Warsaw, Poland
• Thinx IX — Warsaw, Poland