小明看看发布中心小明看看台湾永久免费发布中心小明看看永久局域首页发布缅甸发生5.2级地震 震源深度30千米

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︰

  其中有五千人的戰斗力居然非常的不錯。   敦煌校尉幕煙將雙腿搭在粗糙的木頭案子上,舉著一張地圖在研究斥候搜索的路徑。小明看看发布中心   從他認識雲瑯的那一天起,講道理他就沒有講過雲瑯,在他眼里雲瑯有時候會干出極為邪惡的事情,可是呢,經過雲瑯一番解釋之後,他發現,錯的永遠都是他。小明看看台湾永久免费发布中心   雲瑯抬頭笑道︰“西域三十六國,也該長點記性,當年如果不是他們首鼠兩端,匈奴人何至于囂張若此?張騫,甦武二人最了解這些胡人,我以為他們的做法應該是正確的,一群養不熟的狼,也沒有必要對他們懷柔。”   我曾經瘋過一陣子,師傅怕我死掉,就帶著我跟師兄,以陽光為參照物,測量過大地的曲率。小明看看永久局域首页发布   霍去病冷冷的看著雲瑯道︰“你算什麼?”
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