香蕉伊人大香蕉久草大香蕉网伊人网4在线观看大香蕉伊人久草av观看网红婴儿辅食被曝含塑化剂紧急下架 监管部门介入

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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  黎舟還盯著旁邊男孩的腿,黎江握著他的手放在自己膝蓋上,掌心顫抖,“哥,你摸,我沒事,你護著我一點都沒傷著。”   黎江已經換了一身新衣服,合體的西褲,白色的襯衫,像是隨時可以去台上做鋼琴表演,他瞧見大哥披著襯衫扣子未系的狼狽樣子,忍不住彎起眼楮笑了︰“哥,你不用非穿這身啊,我不是讓人又送了一件T恤過來,你穿那個吧,那個寬松,不會踫到胳膊。”香蕉伊人大香蕉久草   黎舟他們因為那一條淺淺的土溝得救,除了救上來的時候黎舟胳膊被石料砸傷,兩人沒有其他傷勢,只是他情緒繃緊,抱著弟弟的手指太過用力,好一會才被醫護人員分開。大香蕉网伊人网4在线观看   黎舟走過來握著她的手,安撫道︰“沒事,那就不畫,碗蓮就挺好看的,下回我找其他顏色的碗蓮給您送來。”   陸老大連忙把自己帶著的大哥大遞給他,“用這個,不用下樓,去外面找多麻煩。”大香蕉伊人久草av观看   黎舟想多給一點錢,那婆婆立刻搖頭道︰“水不要錢的,不要錢!”
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