这些为专用网络保留的 IP 范围在RFC1918中定义。192.169.0.0/16 不在其中。您可以使用 WHOIS 服务验证此 /16 是否分为多个较小的分配给各种网络。

不，不是。有关所有专用 IP 地址范围（IPv4 和 IPv6），请参阅 RFC6890

192.169.0.0/16 呢？

这是有效的地址空间，地址是可路由的，它们不是私有的。

192.0.0.0/8 中的其他地址呢？

您必须通过 WHOIS 进行验证，192.0.0.0/8 范围内的 192.168.0.0/16 以外的一些网络也是私有的。

您可以在未来通过 WHOIS 工具从 Linux 发行版命令行中检查您喜欢的任何内容：

whois 192.0.0.0/8
whois x.x.x.x/yy

有效地址空间示例：

NetRange:       192.0.0.0 - 192.255.255.255
CIDR:           192.0.0.0/8
NetName:        NET192
NetHandle:      NET-192-0-0-0-0
Parent:          ()
NetType:        Early Registrations, Maintained by ARIN
OriginAS:
Organization:   Various Registries (Maintained by ARIN) (VR-ARIN)
RegDate:        1993-05-01
Updated:        2010-06-30
Ref:            http://whois.arin.net/rest/net/NET-192-0-0-0-0

OrgName:        Various Registries (Maintained by ARIN)
OrgId:          VR-ARIN
Address:        3635 Concord Parkway, Suite 200
City:           Chantilly
StateProv:      VA
PostalCode:     20151
Country:        US
RegDate:        1993-05-01
Updated:        2011-09-24
Comment:        Address space was assigned by the InterNIC regardless of
Comment:        geographic region.  The registrations are now being maintained
Comment:        by various registries, and the in-addr.arpa delegations are
Comment:        being maintained by ARIN.
Ref:            http://whois.arin.net/rest/org/VR-ARIN

私有地址空间示例：

Internet Assigned Numbers Authority PRIVATE-ADDRESS-CBLK-RFC1918-IANA-RESERVED (NET-192-168-0-0-1) 192.168.0.0 - 192.168.255.255
Various Registries (Maintained by ARIN) NET192 (NET-192-0-0-0-0) 192.0.0.0 - 192.255.255.255

来自RFC1918第 3 节：

   The Internet Assigned Numbers Authority (IANA) has reserved the
   following three blocks of the IP address space for private internets:

     10.0.0.0        -   10.255.255.255  (10/8 prefix)
     172.16.0.0      -   172.31.255.255  (172.16/12 prefix)
     192.168.0.0     -   192.168.255.255 (192.168/16 prefix)

192.168.0.0/16 是 192.0.0.0/8 中唯一的私有地址空间。192.0.0.0/24 由 IANA 使用，192.0.2.0/24 保留用于文档和示例，192.88.99.0/24 用于 6to4 任播。

见： http ://en.wikipedia.org/wiki/Reserved_IP_addresses https://www.arin.net/knowledge/address_filters.html