AS150806 R. C. Yulo Telephone System, Inc.

RCYTSI-AS-AP - R. C. Yulo Telephone System, Inc. · registered in the Philippines

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in Philippines#314largest network in PH by IPv4 space, of 465 · <0.01% of PH

Rank worldwide#55,178of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryPhilippines471 ASNs registered there

Open AS150806 in ASN lookup Look up an IP in this network (103.109.184.1) All networks in Philippines

IPv4 prefixes

All 1 prefix, in address order.

103.109.184.0/23

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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