自拍亚洲偷丁香五月自拍偷拍视频亚洲自拍色综合图区斗鱼计划下周三在纽交所上市 已实现首季度扭亏为盈

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︰

  “你動動腦子,去婚禮偷錢是你們倆出的主意,事先我根本不知道蔡若文有什麼狗屁項鏈,放在哪里,怎麼偷啊?”   我的心更沉了。自拍亚洲偷丁香五月   聲音听上去無比驚恐,這叫楊婉貞越發慌亂起來,忙尋了把傘跌跌撞撞跑出門,一路奔到楊少卿的住處。他屋中門窗都敞開著,屋里燈光全無,沖入屋內的風雨將地板打得一片潮濕。自拍偷拍视频   “你要吞下項鏈?”   拐子離開,我繼續在車上等。我給藍波和寧嘉發了幾條短信,他們都沒回,打電話也不接。說實話,我對藍波一點兒好感沒有,他斷手斷腳無所謂,只是放心不下寧嘉。亚洲自拍色综合图区
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