日本毛片基地一亚洲AV99久久免费热在线精品www久久综合久久爱com前美国财长萨默斯称央行可能失去对通胀的控制

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︰

  “應該是一個人才,謝長川跟裴炎正拼命地保這家伙呢,看樣子是個不錯的將才!”   劉陵點頭道︰“您需要屠耆王一脈的效忠,這一脈雖然沒有強大的戰士,卻有最美好的名聲,這是您目前所欠缺的。”日本毛片基地一亚洲AV   郭解坐在山包上,憂愁的看著風吹草地出現的狼群,幽幽的對曹襄道。99久久免费热在线精品   “大長秋拿給我的,還告訴我能不用就不用,後面的手尾處理起來很麻煩。”   曹襄笑道︰“把去病要的那個人帶回騎都尉不就完了,劉佩想要要人,盡管問我要就是了,大家都是侯爺,沒什麼好怕的。”www久久综合久久爱com   就對趙破奴道︰“等我們回到白登山,你去找阿瑯,他會給你一個合適的解說。”
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