Autonomous system
AS12356 RAU-AS Bdul. Expozitiei,Nr. 1B
Unclassified ARIN
Summary
Romanian-American University
university education legacy
A private Bucharest university announcing leased address space.
What it's used for
- Campus connectivity. 512 addresses in one
/23with two observed BGP neighbours and no IPv6 announced.
Notable
- The AS handle is
RAU-AS Bdul. Expozitiei,Nr. 1B— the description field holds the university's street address rather than a description. - The single prefix,
93.113.252.0/23, is registered to IPv4 Management SRL with the contact IP.RO - NOC, under the netnameRO-IPV4-20071221. The university announces it; somebody else holds it. - Two neighbours, so the routing is redundant even though the addresses are borrowed.
Interesting
- An institution that leases its address space and runs its own AS has made a specific trade. The AS number is permanent and free to keep; the addresses are rented and would have to be given back. What it buys is the ability to change the arrangement underneath without the campus noticing.
- A netname of the form
RO-IPV4-<date>names the business rather than the user: the holder is a company whose product is IPv4 addresses. Blocks allocated in 2007, before the free pool ran out, are now inventory.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-22, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| RO | Romania | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS12356- Registry name
- RAU-AS
- Registrant
- UNIVERSITATEA ROMANO-AMERICANA
- Abuse contact
- postmaster@rau.ro
- Registered
- 2009-01-14
- Last changed
- 2021-11-23
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS12356
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS12356
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: 442 networks and 1,779 prefixes, as published 2026-10-23. 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