AS12804 — ADISAM

AS12804 announces 5 IPv4 prefixes covering 1,280 addresses and 0 IPv6 prefixes.

About this network

Five scattered /24s, three of them registered to a company called IPv4 Management.

What it's used for

• A Romanian provider network. 1,280 addresses across five IPv4 prefixes, three observed BGP neighbours, and no IPv6 announced.

Notable

• The blocks are 217.19.0.0/24, .3.0/24, .5.0/24, .8.0/24 and .11.0/24 — five non-adjacent /24s in the same neighbourhood.
• Three carry the netname RO-IPV4-20000919, registered to IPv4 Management SRL.
• The other two are ADISAM-TELECOM-SA, and every record shares an IP.RO - NOC contact.
• Fifteen addresses were sampled and none returned a name.

Interesting

• A registrant named IPv4 Management SRL is a business model in a company name. Once addresses ran out they became an asset class, and companies exist purely to hold, lease and trade blocks. Seeing one as the registrant of space another operator announces is the shape of the market working exactly as intended.
• Five /24s with gaps between them — no .1, .2, .4 — means this is a selection from a larger range rather than an allocation. Somebody took the pieces that were free, which is what transferred and leased space looks like from outside.
• Announcing five separate /24s to reach 1,280 addresses costs five routing-table entries where one would do if the space were contiguous. That is the hidden price of an address market: aggregation loses to availability, and everyone else carries the difference.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 217.19.0.0/24
• 217.19.3.0/24
• 217.19.5.0/24
• 217.19.8.0/24
• 217.19.11.0/24

Upstream networks

• AS12310 iNES GROUP SRL
• AS2914 NTT America, Inc.
• AS174 Cogent Communications, LLC

Adjacent networks

• AS12310 iNES GROUP SRL
• AS2914 NTT America, Inc.
• AS174 Cogent Communications, LLC

Routing security

• RPKI: 5 valid, 0 invalid and 0 not-found announcements; 5 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 5 route objects.
• Listed in as-sets: AS-ADISAM, AS-ASTRAL, AS-BTN-CUSTOMERS, AS-DISYS-UPS, AS-HURRICANE, AS-INES:AS-A-TRANSIT, AS-PCNET, AS-RETN-ACTUAL-V4, AS-TRANSROUTE-SPEC, AS2914:AS-EUROPE, AS2914:AS-EUROPE-V6.