彩票励志搞笑图片图库彩票彩票卡通素材图海南一渔船在南沙遇险 船上32人已获救

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):

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  中間吃虧的是錢莊!   每一次更換大單于,我大匈奴就會掀起一場腥風血雨,此時此刻,漢國雄起,我大匈奴勢弱,我們經不起一場大波折了,你知不知道?”彩票励志搞笑图片   所以,只要這些人不去擠兌,錢莊剩余的銀錢,足夠支應那些需要銀錢周轉的商戶以及平民所需。图库彩票   蒙查皺眉道︰“是為了統一軍心。”   雲瑯認為領頭羊應該是他!彩票卡通素材图   雲瑯嘆息一聲道︰“你看看,年輕人在博望侯這種老狐狸手下過的是何等的悲慘啊。被他打包賣掉,還感激博望侯給他出頭的機會,你以後跟這些老狐狸打交道的時候千萬小心。”
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