国产综合亚洲在线成色综合网站中融基金赵菲:外资流入仍有空间

We are responsible for global coordination of the Internet Protocol addressing systems, as well as the Autonomous System Numbers used for routing Internet traffic.

Currently there are two types of Internet Protocol (IP) addresses in active use: IP version 4 (IPv4) and IP version 6 (IPv6). IPv4 was initially deployed on 1 January 1983 and is still the most commonly used version. IPv4 addresses are 32-bit numbers often expressed as 4 octets in “dotted decimal” notation (for example, 192.0.2.53). Deployment of the IPv6 protocol began in 1999. IPv6 addresses are 128-bit numbers and are conventionally expressed using hexadecimal strings (for example, 2001:0db8:582:ae33::29).

Both IPv4 and IPv6 addresses are generally assigned in a hierarchical manner. Users are assigned IP addresses by Internet service providers (ISPs). ISPs obtain allocations of IP addresses from a local Internet registry (LIR) or National Internet Registry (NIR), or from their appropriate Regional Internet Registry (RIR):

發布時間︰

  陸昔年頭疼歸頭疼,但還是特別利落的點開大圖保存,把拍得最好的那張圖片設為壁紙和鎖屏。   “這幾天太忙我都忘記問你了,你真看上那小學弟了?”高思明一手搭上林徵羽的肩膀,“小學弟一看就很純情,你不是還有個夢中情人嗎,難不成你想腳踏兩條船?”国产   楊禮沉寂了一個月,然後也跟著宣布退役了。他曾經覺得游戲勝過一切,現在他才明白,沒有什麼比那個人更加重要,只是他明白得太晚了。综合   當然後面的才是真心話,不過陸昔年沒有說出來。   “我怎麼也沒看到人,Lin真的沒有開透視掛?”亚洲在线成色综合网站   話音剛落,後腦勺接到了陸昔年的枕頭一個。
Map of RIRs
RegistryArea Covered
AFRINICAfrica Region
APNICAsia/Pacific Region
ARINCanada, USA, and some Caribbean Islands
LACNICLatin America and some Caribbean Islands
RIPE NCCEurope, the Middle East, and Central Asia

Our primary role for IP addresses is to allocate pools of unallocated addresses to the RIRs according to their needs as described by global policy and to document protocol assignments made by the IETF. When an RIR requires more IP addresses for allocation or assignment within its region, we make an additional allocation to the RIR. We do not make allocations directly to ISPs or end users except in specific circumstances, such as allocations of multicast addresses or other protocol specific needs.

IP Address Allocations

Internet Protocol Version 4 (IPv4)

Internet Protocol Version 6 (IPv6)

Autonomous System Number Allocations

Procedures

Regional Internet Registry Creation

Technical Documentation