# ANSI MAP OTA Sample Hosts File
# Maps IP addresses to SS7 network element names

# HLR/OTAF - Home Location Register / Over-The-Air Function
# Originates: SMS delivery, registration responses, location responses
172.16.128.154	🔐 HLR

# MSC - Mobile Switching Center
# Originates: registration requests, location requests, routing requests
172.16.128.51	📍 MSC
