AS21903:AS-FMT2 networks in FMT2
An as-set registered in ARIN, maintained by MNT-ANL-357. It names 1 AS and 0 sets directly; followed all the way down, it reaches 1 ASes through 0 nested sets.
Members
What AS21903:AS-FMT2 lists
1 AS and 0 sets, written in the object across every registry that holds it. Sets open their own page.
Expanded
Every AS it reaches
What a filter built from AS21903:AS-FMT2 would let in: 1 ASes.
Show the 1 ASes
Prefixes
What AS21903:AS-FMT2 covers
Every route object in the IRR whose origin is one of the 1 ASes it reaches: the prefixes a filter built from AS21903:AS-FMT2 (with bgpq4, say) would allow. 1 IPv4 and 12 IPv6. Every one is in the IRR API.
1 IPv4 prefix
Registries
Each registry’s copy
ARIN1 membersnetworks in FMT2
| Maintained by | MNT-ANL-357 |
| Last modified | 2025-11-18T00:02:29Z |
| Members | AS21903 |
| mbrs-by-ref | N |