27 KiB
27 KiB
Complete IANA IPv4 range index
Generated from authoritative IANA registries and checked 2026-07-22.
Coverage
- 256 top-level
/8records, covering all IPv4 addresses from0.0.0.0through255.255.255.255without gaps. - 26 expanded special-purpose prefixes from the IANA IPv4 Special-Purpose Address Registry.
- More-specific manual research records and placeholders remain alongside these authoritative baselines.
Top-level counts
By RDAP registry authority
afrinic: 6apnic: 51arin: 111iana: 35lacnic: 10ripe-ncc: 43
By IANA status
allocated: 129legacy: 92reserved: 35
All top-level IPv4 /8 ranges
| Range | IANA designation | Status | Registry/RDAP | Record |
|---|---|---|---|---|
0.0.0.0/8 |
IANA - Local Identification | RESERVED | iana |
record |
1.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
2.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
3.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
4.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
5.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
6.0.0.0/8 |
Army Information Systems Center | LEGACY | arin |
record |
7.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
8.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
9.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
10.0.0.0/8 |
IANA - Private Use | RESERVED | iana |
record |
11.0.0.0/8 |
DoD Intel Information Systems | LEGACY | arin |
record |
12.0.0.0/8 |
AT&T Bell Laboratories | LEGACY | arin |
record |
13.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
14.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
15.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
16.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
17.0.0.0/8 |
Apple Computer Inc. | LEGACY | arin |
record |
18.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
19.0.0.0/8 |
Ford Motor Company | LEGACY | arin |
record |
20.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
21.0.0.0/8 |
DDN-RVN | LEGACY | arin |
record |
22.0.0.0/8 |
Defense Information Systems Agency | LEGACY | arin |
record |
23.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
24.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
25.0.0.0/8 |
Administered by RIPE NCC | LEGACY | ripe-ncc |
record |
26.0.0.0/8 |
Defense Information Systems Agency | LEGACY | arin |
record |
27.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
28.0.0.0/8 |
DSI-North | LEGACY | arin |
record |
29.0.0.0/8 |
Defense Information Systems Agency | LEGACY | arin |
record |
30.0.0.0/8 |
Defense Information Systems Agency | LEGACY | arin |
record |
31.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
32.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
33.0.0.0/8 |
DLA Systems Automation Center | LEGACY | arin |
record |
34.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
35.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
36.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
37.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
38.0.0.0/8 |
PSINet, Inc. | LEGACY | arin |
record |
39.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
40.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
41.0.0.0/8 |
AFRINIC | ALLOCATED | afrinic |
record |
42.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
43.0.0.0/8 |
Administered by APNIC | LEGACY | apnic |
record |
44.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
45.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
46.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
47.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
48.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
49.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
50.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
51.0.0.0/8 |
Administered by RIPE NCC | LEGACY | ripe-ncc |
record |
52.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
53.0.0.0/8 |
Daimler AG | LEGACY | ripe-ncc |
record |
54.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
55.0.0.0/8 |
DoD Network Information Center | LEGACY | arin |
record |
56.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
57.0.0.0/8 |
Administered by RIPE NCC | LEGACY | ripe-ncc |
record |
58.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
59.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
60.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
61.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
62.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
63.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
64.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
65.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
66.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
67.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
68.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
69.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
70.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
71.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
72.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
73.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
74.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
75.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
76.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
77.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
78.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
79.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
80.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
81.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
82.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
83.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
84.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
85.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
86.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
87.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
88.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
89.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
90.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
91.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
92.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
93.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
94.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
95.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
96.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
97.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
98.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
99.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
100.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
101.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
102.0.0.0/8 |
AFRINIC | ALLOCATED | afrinic |
record |
103.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
104.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
105.0.0.0/8 |
AFRINIC | ALLOCATED | afrinic |
record |
106.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
107.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
108.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
109.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
110.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
111.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
112.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
113.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
114.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
115.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
116.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
117.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
118.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
119.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
120.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
121.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
122.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
123.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
124.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
125.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
126.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
127.0.0.0/8 |
IANA - Loopback | RESERVED | iana |
record |
128.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
129.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
130.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
131.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
132.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
133.0.0.0/8 |
Administered by APNIC | LEGACY | apnic |
record |
134.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
135.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
136.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
137.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
138.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
139.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
140.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
141.0.0.0/8 |
Administered by RIPE NCC | LEGACY | ripe-ncc |
record |
142.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
143.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
144.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
145.0.0.0/8 |
Administered by RIPE NCC | LEGACY | ripe-ncc |
record |
146.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
147.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
148.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
149.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
150.0.0.0/8 |
Administered by APNIC | LEGACY | apnic |
record |
151.0.0.0/8 |
Administered by RIPE NCC | LEGACY | ripe-ncc |
record |
152.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
153.0.0.0/8 |
Administered by APNIC | LEGACY | apnic |
record |
154.0.0.0/8 |
Administered by AFRINIC | LEGACY | afrinic |
record |
155.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
156.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
157.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
158.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
159.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
160.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
161.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
162.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
163.0.0.0/8 |
Administered by APNIC | LEGACY | apnic |
record |
164.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
165.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
166.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
167.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
168.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
169.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
170.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
171.0.0.0/8 |
Administered by APNIC | LEGACY | apnic |
record |
172.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
173.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
174.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
175.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
176.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
177.0.0.0/8 |
LACNIC | ALLOCATED | lacnic |
record |
178.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
179.0.0.0/8 |
LACNIC | ALLOCATED | lacnic |
record |
180.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
181.0.0.0/8 |
LACNIC | ALLOCATED | lacnic |
record |
182.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
183.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
184.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
185.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
186.0.0.0/8 |
LACNIC | ALLOCATED | lacnic |
record |
187.0.0.0/8 |
LACNIC | ALLOCATED | lacnic |
record |
188.0.0.0/8 |
Administered by RIPE NCC | LEGACY | ripe-ncc |
record |
189.0.0.0/8 |
LACNIC | ALLOCATED | lacnic |
record |
190.0.0.0/8 |
LACNIC | ALLOCATED | lacnic |
record |
191.0.0.0/8 |
Administered by LACNIC | LEGACY | lacnic |
record |
192.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
193.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
194.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
195.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
196.0.0.0/8 |
Administered by AFRINIC | LEGACY | afrinic |
record |
197.0.0.0/8 |
AFRINIC | ALLOCATED | afrinic |
record |
198.0.0.0/8 |
Administered by ARIN | LEGACY | arin |
record |
199.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
200.0.0.0/8 |
LACNIC | ALLOCATED | lacnic |
record |
201.0.0.0/8 |
LACNIC | ALLOCATED | lacnic |
record |
202.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
203.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
204.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
205.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
206.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
207.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
208.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
209.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
210.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
211.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
212.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
213.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
214.0.0.0/8 |
US-DOD | LEGACY | arin |
record |
215.0.0.0/8 |
US-DOD | LEGACY | arin |
record |
216.0.0.0/8 |
ARIN | ALLOCATED | arin |
record |
217.0.0.0/8 |
RIPE NCC | ALLOCATED | ripe-ncc |
record |
218.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
219.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
220.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
221.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
222.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
223.0.0.0/8 |
APNIC | ALLOCATED | apnic |
record |
224.0.0.0/8 |
Multicast | RESERVED | iana |
record |
225.0.0.0/8 |
Multicast | RESERVED | iana |
record |
226.0.0.0/8 |
Multicast | RESERVED | iana |
record |
227.0.0.0/8 |
Multicast | RESERVED | iana |
record |
228.0.0.0/8 |
Multicast | RESERVED | iana |
record |
229.0.0.0/8 |
Multicast | RESERVED | iana |
record |
230.0.0.0/8 |
Multicast | RESERVED | iana |
record |
231.0.0.0/8 |
Multicast | RESERVED | iana |
record |
232.0.0.0/8 |
Multicast | RESERVED | iana |
record |
233.0.0.0/8 |
Multicast | RESERVED | iana |
record |
234.0.0.0/8 |
Multicast | RESERVED | iana |
record |
235.0.0.0/8 |
Multicast | RESERVED | iana |
record |
236.0.0.0/8 |
Multicast | RESERVED | iana |
record |
237.0.0.0/8 |
Multicast | RESERVED | iana |
record |
238.0.0.0/8 |
Multicast | RESERVED | iana |
record |
239.0.0.0/8 |
Multicast | RESERVED | iana |
record |
240.0.0.0/8 |
Future use | RESERVED | iana |
record |
241.0.0.0/8 |
Future use | RESERVED | iana |
record |
242.0.0.0/8 |
Future use | RESERVED | iana |
record |
243.0.0.0/8 |
Future use | RESERVED | iana |
record |
244.0.0.0/8 |
Future use | RESERVED | iana |
record |
245.0.0.0/8 |
Future use | RESERVED | iana |
record |
246.0.0.0/8 |
Future use | RESERVED | iana |
record |
247.0.0.0/8 |
Future use | RESERVED | iana |
record |
248.0.0.0/8 |
Future use | RESERVED | iana |
record |
249.0.0.0/8 |
Future use | RESERVED | iana |
record |
250.0.0.0/8 |
Future use | RESERVED | iana |
record |
251.0.0.0/8 |
Future use | RESERVED | iana |
record |
252.0.0.0/8 |
Future use | RESERVED | iana |
record |
253.0.0.0/8 |
Future use | RESERVED | iana |
record |
254.0.0.0/8 |
Future use | RESERVED | iana |
record |
255.0.0.0/8 |
Future use | RESERVED | iana |
record |
IANA special-purpose ranges
Special-purpose prefixes can overlap top-level /8 records and each other because they express more-specific protocol semantics.
| Range | Name | Globally reachable | Record |
|---|---|---|---|
0.0.0.0/8 |
This network | False | record |
0.0.0.0/32 |
This host on this network | False | record |
10.0.0.0/8 |
Private-Use | False | record |
100.64.0.0/10 |
Shared Address Space | False | record |
127.0.0.0/8 |
Loopback | False [1] | record |
169.254.0.0/16 |
Link Local | False | record |
172.16.0.0/12 |
Private-Use | False | record |
192.0.0.0/24 |
IETF Protocol Assignments | False | record |
192.0.0.0/29 |
IPv4 Service Continuity Prefix | False | record |
192.0.0.8/32 |
IPv4 dummy address | False | record |
192.0.0.9/32 |
Port Control Protocol Anycast | True | record |
192.0.0.10/32 |
Traversal Using Relays around NAT Anycast | True | record |
192.0.0.170/32 |
NAT64/DNS64 Discovery | False | record |
192.0.0.171/32 |
NAT64/DNS64 Discovery | False | record |
192.0.2.0/24 |
Documentation (TEST-NET-1) | False | record |
192.31.196.0/24 |
AS112-v4 | True | record |
192.52.193.0/24 |
AMT | True | record |
192.88.99.0/24 |
Deprecated (6to4 Relay Anycast) | Not stated | record |
192.88.99.2/32 |
6a44-relay anycast address | False | record |
192.168.0.0/16 |
Private-Use | False | record |
192.175.48.0/24 |
Direct Delegation AS112 Service | True | record |
198.18.0.0/15 |
Benchmarking | False | record |
198.51.100.0/24 |
Documentation (TEST-NET-2) | False | record |
203.0.113.0/24 |
Documentation (TEST-NET-3) | False | record |
240.0.0.0/4 |
Reserved | False | record |
255.255.255.255/32 |
Limited Broadcast | False | record |