Autonomous system
AS12577 MMC-AT-AS Muehlgasse 14E
Unclassified RIPE
Summary
MMC
isp transit business
720 BGP neighbours for 9,216 addresses, and a reverse-name scheme that cannot tell its two address blocks apart.
What it's used for
- Internet access and transit in Austria. 9,216 addresses in two IPv4 prefixes, one IPv6 prefix, and 720 observed BGP neighbours.
Notable
212.108.32.0/19is netnameAT-MMC-990603;185.104.224.0/22isAT-MMC-20150616, registered throughmmc hostmaster.- The IPv6 announcement is
2a00:1618::/29, four times larger than the/32most networks of this size hold. - Sampled addresses answer
sta-040-000.mmc.at,sta-047-255.mmc.at,sta-225-255.mmc.atandsta-226-254.mmc.at.
Interesting
- 720 neighbours against nine thousand addresses is the highest ratio in this stretch of the number range by a wide margin, and it is what heavy exchange-point peering looks like from a route collector. A network that joins an internet exchange's route server picks up every other member as a recorded neighbour at once, so the count measures how sociable the network is rather than how large.
- The reverse names encode only the last two octets.
212.108.40.0becomessta-040-000and185.104.225.255becomessta-225-255, so an address in one block and an address in the other with matching tails would be given the same name. The scheme was designed when there was one block to name. stais the usual shorthand for a static assignment, which marks these as addresses handed out to stay put rather than leased by the session.
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 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.195.221 |
| Vienna Internet Exchange | Vienna, Austria | 193.203.0.86 |
Transit providers
7 upstream, 5 downstream and 20 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 2 prefixes · 9.22K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AT | Austria | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS12577- Registry name
- MMC-AT-AS
- Registrant
- MMC-MNTNER
- Abuse contact
- office@mmc.at
- Registered
- 1970-01-01
- Last changed
- 2025-05-26
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 3 valid, 0 with no ROA
- ROAs
- 3 authorising AS12577
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 12 naming AS12577
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: 432 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