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- Deleted
1. Overview
This document details the smallest allocations and assignments made by the RIPE NCC to Local Internet Registries (LIRs) and End Users from IPv4 and IPv6 CIDR blocks allocated to the RIPE NCC by the Internet Assigned Numbers Authority (IANA) and other registries.
"Smallest allocation" refers to the smallest allocation made to LIRs by the RIPE NCC.
"Smallest assignment" refers to the size of the smallest assignment made by the RIPE NCC to an End User.
A list of all IPv4 and IPv6 address space allocated to the RIPE NCC by the IANA is available as a route-set object in the RIPE Database.
It can be found on the RIPE NCC website at:
http://www.ripe.net/whois?-rTroute-set+RS-IP-ALLOCATIONS-TO-RIPE-NCC-FROM-IANA Link: http://www.ripe.net/whois?-rTroute-set+RS-IP-ALLOCATIONS-TO-RIPE-NCC-FROM-IANA
A whois client can get it with the following command:
$ whois -h whois.ripe.net ' -rTrs RS-IP-ALLOCATIONS-TO-RIPE-NCC-FROM-IANA '
2. Special Purpose Ranges
2.a. Internet Exchange Points
Small IPv6 blocks have been assigned to Internet Exchange Points (IXPs) under the
interim policy allowing this.From October 2003, IPv6 Address Space Policy for Internet Exchange Points Link: ipv6-policy-ixp.html .
All RIPE NCC IPv6 IXP assignments come from the 2001:7f8::/32 range and are registered in the RIPE Database.
2.b. Root Name Servers
IPv6 blocks have been assigned to Root Name Servers under the IPv6 Addresses for Internet Root Servers in the RIPE Region Link: ipv6-rootservers.html policy. These assignments come from the 2001:7f8::/29 range and are registered in the RIPE Database.
2.c. Address Space Used by Networks in Africa
will assign from 196.200.0.0/13.Routing decisions for blocks assigned from 196.200.0.0/13.
2.d. Address Space Assigned for Anycasting TLD Nameservers
Policy proposal 2005-02 was accepted in September 2006 and allowed the RIPE NCC to assign single IPv4 and IPv6 prefixes to Top Level Domains (TLDs) for anycasting DNS. The IPv4 assignments are /24 and are taken from 194.0.0.0/18. The IPv6 assignments are /48 and are taken from 2001:678::/29.
2.e. IPv6 PI Address Space
Policy proposal 2006-01 was accepted in April 2009 and allowed the RIPE NCC to assign IPv6 Provider Independent (PI) prefixes. The IPv6 PI assignments are taken from 2001:678::/29.
3. Address blocks transferred to the RIPE NCC
During various transfer activities some legacy address blocks, issued by the InterNIC and other entities to users inside the RIPE NCC service region in the past, were transferred under the RIPE NCC administration. Also some blocks from /8 allocations from the IANA to the RIPE NCC were later transferred to other RIRs.
4. Routing Decisions
"smallest allocation" and larger.Users receiving networks smaller than the smallest allocation size are always notified that network operators throughout the Internet may choose not to route, or may filter, these networks.
IPv4 CIDR block Smallest RIPE NCC Allocation Smallest RIPE NCC Assignment
62/8 /19 /19
80/8 /20 /20
81/8 /20 /20
82/8 /20 /20
83/8 /21 /21
84/8 /21 /21
85/8 /21 /21
86/8 /21 /21
87/8 /21 /21
88/8 /21 /21
193/8 /19 /29
194/8 /19 /29
195/8 /19 /29
196.200/13 /20 /24
212/8 /19 /19
213/8 /19 /19
217/8 /20 /20
IPv6 CIDR block Smallest RIPE NCC Allocation Smallest RIPE NCC Assignment
2001:0600::/23 /35 /48
2001:0800::/23 /32 /32
2001:0A00::/23 /32 longest prefix and larger.5. Longest Prefix Tables
The following table shows longest prefixes allocated or assigned by the RIPE NCC for each listed range.
IPv4 Range Longest Prefix 2/8
/21
5/8
/21
24/8[i]
/29
31/8
/21
37/8
/21
46/8
/21
62/8[i]
/21
77/8[i]
/21
78/7
/21
80/7[i]
/21
82/8[i]
/21
83/8[i]
/21
84/6[i]
/21
88/7
/21
90/8
/21
91/8
/29
92/8
/21
93/8
/21
94/8
/21
95/8
/21
109/8
/21
128/6[i]
/29
132/8[i]
/29
134/7[i]
/29
136/6[i]
/29
140/7[i]
/29
143/8[i]
/29
144/4[i]
/29
160/5[i]
/29
168/6[i]
/29
176/8
/21
178/8
/21
185/8
/22
188/8
/21
192/6[i]
/29
196/8[i][ii]
/24
198/7[i]
/29
212/7[i]
/21
217/8[i]
/21
IPv6 Range Longest Prefix 2001:600::/23[ii]
/64
2001:800::/23
/32
2001:A00::/23
2001:1600::/23
/32
2001:1A00::/23
/32
2001:1C00::/22
/32
2001:2000::/20
/32
2001:3000::/21
/32
2001:3800::/22
/32Table 1. Allocation/Assignment sizes in CIDR blocks held
2001:4600::/23
/32
2001:4A00::/23
/32
2001:4C00::/23
/32
2001:5000::/20
/32
2003::/18
/32
2A00::/12[iii]
/32
[ii] See Section 2: Special Purpose Ranges
[iii] 2A00::/12 was allocated in October 2006, expanding 2A01::/16 which was allocated in December 2005, which incorporated the previously allocated 2A01::/23.