RE: Getting pretty close to default IPv4 route maximum for 6500/7600 routers.

Do the ASR1k routers have this issue as well? I searched around but couldn't find any information.

Not really (according to Cisco) - ESP10 - 1,000,000 IPv4 or 500,000 IPv6 routes ESP20 - 4,000,000 IPv4 or 4,000,000 IPv6 routes ESP40 - 4,000,000 IPv4 or 4,000,000 IPv6 routes ESP100-4,000,000 IPv4 or 4,000,000 IPv6 routes (hardware is capable of 8,000,000 routes) ESP200-4,000,000 IPv4 or 4,000,000 IPv6 routes