AS7257 — GPC

AS7257 announces 2 IPv4 prefixes covering 512 addresses and 33 IPv6 prefixes.

About this network

MARU-NET is held by OTO GK, a Japanese company operating a small network under the MARU name. The AS number is a reissue: the registration dates to 2026, so despite the low number this is a modern holder with no early-internet pedigree.

What it's used for

• MARU describes itself in peering records as a network service provider in the Asia-Pacific region with an open peering policy.
• What it actually announces is modest: two /24s re-registered as MARU-CIDR-BLK-JP, plus a large IPv6 /29. Its published site was still a placeholder at the time of writing.

Notable

• The registry paperwork is unusual. A Japanese organisation holds the AS and its address blocks through RIPE rather than APNIC, and the IPv6 /29 is registered to a separate individual, with only a MARU remark linking them.
• The IPv4 blocks are recycled legacy space, not a fresh allocation — a common pattern for small networks assembled out of transferred address blocks.
• Because the self-description (a regional network service provider) is far larger than the inventory it announces, this network is best treated as unclassified rather than forced into a category.

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

Announced prefixes

• 168.151.54.0/24
• 208.88.66.0/24
• 2a06:40::/32
• 2a06:41:40::/42
• 2a06:41:c0::/42
• 2a06:41:100::/40
• 2a06:41:200::/39
• 2a06:41:400::/38
• 2a06:41:800::/37
• 2a06:41:1000::/36
• 2a06:41:2100::/40
• 2a06:41:2200::/39
• 2a06:41:2400::/38
• 2a06:41:2800::/37
• 2a06:41:3000::/36
• 2a06:41:4100::/40
• 2a06:41:4200::/39
• 2a06:41:4400::/38
• 2a06:41:4800::/37
• 2a06:41:5000::/36
• 2a06:41:6000::/35
• 2a06:41:8100::/40
• 2a06:41:8200::/39
• 2a06:41:8400::/38
• 2a06:41:8800::/37
• 2a06:41:9000::/36
• 2a06:41:a000::/35
• 2a06:41:c100::/40
• 2a06:41:c200::/39
• 2a06:41:c400::/38
• 2a06:41:c800::/37
• 2a06:41:d000::/36
• 2a06:41:e000::/35
• 2a06:42::/31
• 2a06:44::/30

Upstream networks

• AS9663 OTO GK

Adjacent networks

• AS9663 OTO GK

Routing security

• RPKI: 0 valid, 0 invalid and 3 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-63529-AS-IMPORT-AS6939, AS-BEANFIELD, AS-DATA102, AS-FRC-HFX, AS-MARU, AS-ORACLE-OCI-OC1-CUSTOMER, AS-PREM.