AS23357 -Reserved AS-

-Reserved AS- · region code Unknown

IPv4 addresses1,7926 prefixes · <0.001% of announced IPv4

Rank worldwide#25,123of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnknown398 ASNs registered there

Open AS23357 in ASN lookup Look up an IP in this network (209.12.56.1)

IPv4 prefixes

All 6 prefixes, in address order.

209.12.56.0/24
209.136.4.0/24
209.136.38.0/24
209.194.116.0/24
216.84.198.0/23
216.253.163.0/24

Other ASNs named -Reserved AS-

176 other networks use the same organisation name; together with AS23357 they announce 372,352 IPv4 addresses. Largest 30 shown.

ASNNameIPv4 addresses

AS19708-Reserved AS- Unknown65,536

AS23448-Reserved AS- Unknown65,536

AS26971-Reserved AS- Unknown65,536

AS395527-Reserved AS- Unknown65,536

AS32068-Reserved AS- Unknown6,656

AS33223-Reserved AS- Unknown5,120

AS19533-Reserved AS- Unknown4,352

AS54231-Reserved AS- Unknown4,352

AS11969-Reserved AS- Unknown4,096

AS62964-Reserved AS- Unknown4,096

AS20271-Reserved AS- Unknown2,816

AS940-Reserved AS- Unknown2,304

AS4883-Reserved AS- Unknown2,048

AS22272-Reserved AS- Unknown2,048

AS54339-Reserved AS- Unknown1,792

AS396426-Reserved AS- Unknown1,792

AS13980-Reserved AS- Unknown1,536

AS27593-Reserved AS- Unknown1,536

AS22830-Reserved AS- Unknown1,280

AS26295-Reserved AS- Unknown1,280

AS26582-Reserved AS- Unknown1,280

AS6485-Reserved AS- Unknown1,024

AS7363-Reserved AS- Unknown1,024

AS14902-Reserved AS- Unknown1,024

AS16929-Reserved AS- Unknown1,024

AS19202-Reserved AS- Unknown1,024

AS25647-Reserved AS- Unknown1,024

AS32302-Reserved AS- Unknown1,024

AS32510-Reserved AS- Unknown1,024

AS40687-Reserved AS- Unknown1,024

Similar-sized networks in None

ASNNameIPv4 addresses

AS400050#45 OLOGY2,048

AS401984#46 HELLSTRA-OPT2,048

AS401541#47 OSIE1,792

AS54339#49 -Reserved AS-1,792

AS396243#50 CONV-81,792

AS396426#51 -Reserved AS-1,792

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources