100.64.0.0 is the Network Address in 100.64.0.0/10
CIDR block	100.64.0.0/10 !cidr !bgp
Valid CIDR block	100.64.0.0/10
Range: Network - Broadcast	100.64.0.0 - 100.127.255.255
Netmask	255.192.0.0
Number of IP addresses in the block	4194304 (4.194304e+06)
Network Address: 100.64.0.0   !ip !rdap !whois !bl !ptr24 !scan !tr !dnstr !g !gsec
Broadcast Address: 100.127.255.255   !ip !rdap !whois !bl !ptr24 !scan !tr !dnstr !g !gsec
100.64.0.0/10 - Shared Address Space 100.64.0.0/10 was allocated on April of 2012. Addresses in 100.64.0.0/10 may be used as the source address of an IP datagram that transits two devices. Addresses in 100.64.0.0/10 may be used as the destination address of an IP datagram that transits two devices. Addresses in 100.64.0.0/10 are forwardable. A router may forward an IP datagram to Addresses in 100.64.0.0/10 between external interfaces Addresses in 100.64.0.0/10 are NOT globally reachable An IP datagram may NOT be forwarded to Addresses in 100.64.0.0/10 beyond a specified administative domain. The 100.64.0.0/10 Address block is reserved to be used as Shared Address Space to accomodate the need of Carrier-Grade NAT (CGN) devices. It is anticipated that Service Providers will use this Shared Address Space to number the interfaces that connect CGN devices to Customer Premises Equipment (CPE). [ RFC6598, ^ ] , Address Allocation for Private Internets
!g 100.64.0.0/10

  
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