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ARIN registry — WHOIS, browse & statistics

A daily mirror of ARIN's public delegated registry (North America). Look up a resource, browse every object, or find a company's resources by name.

Single-resource lookup in ARIN’s delegated registry, enriched live from ARIN RDAP.
// what ARIN has delegated

ARIN registry at a glance

🌐
Assigned IPv4 addresses
1.64B
1,644,997,632
📦
IPv4 networks
76,756
delegated blocks
🧭
IPv6 networks
11,434
delegated blocks
🔗
Autonomous systems
34,116
ASNs
// browse the objects

Browse the ARIN registry

IPv4 blocks IPv6 blocks ASNs
ASCountryStatusAllocatedOrg handle
AS401237 US assigned 2024-07-08 0305eac674f6…
AS401238 US assigned 2024-07-08 c5df332e11fc…
AS401239 US assigned 2024-07-08 5d63704b3887…
AS401240 US assigned 2024-07-08 7b1d7168f453…
AS401241 US assigned 2024-07-08 63ed368008c2…
AS401242 US assigned 2024-07-08 0a314e1b1836…
AS401243 US assigned 2024-07-08 9f47f5cd78d6…
AS34553 US assigned 2024-07-03 717117cf6794…
AS401226 US assigned 2024-07-03 ce68b20f558c…
AS401227 US assigned 2024-07-03 9ec33415a119…
AS401228 US assigned 2024-07-03 82f7e831976c…
AS401229 US assigned 2024-07-03 0eb3b4fe8bc2…
AS401230 US assigned 2024-07-03 0eb3b4fe8bc2…
AS401223 US assigned 2024-07-02 0b115759a8b1…
AS401224 US assigned 2024-07-02 4d22f151f276…
AS401225 CA assigned 2024-07-02 410c2c83b2ec…
AS63043 US assigned 2024-07-01 81fd5ef7a214…
AS63129 US assigned 2024-07-01 ec0970844cee…
AS401222 US assigned 2024-07-01 660edc6ab2d2…
AS401214 US assigned 2024-06-28 bcc0c9ac7199…
AS401215 US assigned 2024-06-28 87feea803711…
AS401216 CA assigned 2024-06-28 6c37a0585fc0…
AS401217 US assigned 2024-06-28 d54f2812cbe7…
AS401219 US assigned 2024-06-28 0c0128af2203…
AS401220 US assigned 2024-06-28 10f0bbd818c2…
AS401221 US assigned 2024-06-28 8e501329c24c…
AS401213 CA assigned 2024-06-27 cc6d0d25ced7…
AS401210 US assigned 2024-06-26 61667d7f156d…
AS401211 US assigned 2024-06-26 7c5e41bef823…
AS401212 CA assigned 2024-06-26 38c5b8c72e32…
AS33039 CA assigned 2024-06-25 64eb721048fc…
AS55285 CA assigned 2024-06-25 2b0c66ce5255…
AS401204 US assigned 2024-06-25 4652f3eb239b…
AS401207 US assigned 2024-06-25 07301a3a3a1d…
AS401208 US assigned 2024-06-25 58999beb62df…
AS401209 US assigned 2024-06-25 4a74f39229b9…
AS401202 US assigned 2024-06-24 50a2ff8c1b58…
AS401203 CA assigned 2024-06-24 f8b6c91fcd4f…
AS36743 US assigned 2024-06-21 f036ffa14fed…
AS401198 GP assigned 2024-06-21 4116b715caad…
AS401199 US assigned 2024-06-21 d8b12f8d0834…
AS401200 US assigned 2024-06-21 0da5611651c7…
AS401201 US assigned 2024-06-21 03d0713efa4b…
AS954 US assigned 2024-06-20 ef69723f7172…
AS401191 US assigned 2024-06-20 9a957426b3ee…
AS401192 US assigned 2024-06-20 5349070a5332…
AS401193 US assigned 2024-06-20 3137d6567ef0…
AS401194 US assigned 2024-06-20 7d4944bb7ae7…
AS401196 CA assigned 2024-06-20 c5cc92932c8c…
AS401197 US assigned 2024-06-20 37ae9e524108…
AS55272 US assigned 2024-06-18 3ae72e55ebf2…
AS401188 US assigned 2024-06-18 cd65312fa7b4…
AS401190 CA assigned 2024-06-18 184e41e66a2d…
AS2729 US assigned 2024-06-17 a3e9ad835df6…
AS12070 US assigned 2024-06-17 176936f5222d…
AS401178 US assigned 2024-06-17 73e09e58099f…
AS401180 US assigned 2024-06-17 24a9a4aeb5c8…
AS401181 US assigned 2024-06-17 24198424d9a2…
AS401182 US assigned 2024-06-17 112d007927d4…
AS401183 US assigned 2024-06-17 d6d1feeb1dfb…
AS401184 BM assigned 2024-06-17 af5514be1e8e…
AS401185 US assigned 2024-06-17 aba567e0de4a…
AS401186 US assigned 2024-06-17 f2cae6ea15b7…
AS18838 US assigned 2024-06-14 70d9f871b191…
AS19577 US assigned 2024-06-14 e2f0a879d451…
AS19879 US assigned 2024-06-14 6aafd51723e0…
AS401176 US assigned 2024-06-14 6ea3e98b70b4…
AS401177 US assigned 2024-06-14 40103d39d68e…
AS20317 US assigned 2024-06-13 8d92a15da86e…
AS46232 US assigned 2024-06-13 d749361f6ef8…
AS401172 US assigned 2024-06-13 949be4a68a00…
AS401173 US assigned 2024-06-13 709ad46cdaa0…
AS401174 US assigned 2024-06-13 da95b1ea0941…
AS401175 CA assigned 2024-06-13 bbdc70bb6a7a…
AS46781 US assigned 2024-06-12 cd0800171005…
AS200351 CA assigned 2024-06-12 f92313983206…
AS401164 US assigned 2024-06-12 015822ae9584…
AS401165 US assigned 2024-06-12 0b42ec9ac561…
AS401166 US assigned 2024-06-12 fe4676ac3b33…
AS401167 CA assigned 2024-06-12 875096d1f104…
AS401168 CA assigned 2024-06-12 47c69d402c2c…
AS401170 US assigned 2024-06-12 6c59eae8e426…
AS401171 US assigned 2024-06-12 bbdce79caad1…
AS999 US assigned 2024-06-11 36983453b7fb…
AS40776 US assigned 2024-06-11 42c0869c9e62…
AS401158 US assigned 2024-06-11 97fd9ac4cf23…
AS401159 US assigned 2024-06-11 1c1e05d4d211…
AS401160 US assigned 2024-06-11 1212d2f58bbe…
AS401161 US assigned 2024-06-11 94f965df0b71…
AS401162 US assigned 2024-06-11 edde1527e20a…
AS401163 US assigned 2024-06-11 9da1a21f1fb5…
AS395514 US assigned 2024-06-10 15686a481504…
AS396451 US assigned 2024-06-10 15686a481504…
AS401151 US assigned 2024-06-10 cf3adb0aa822…
AS401152 US assigned 2024-06-10 0fdeb4020d94…
AS401153 US assigned 2024-06-10 9726b53380b7…
AS401154 US assigned 2024-06-10 abeece58e6c3…
AS401155 US assigned 2024-06-10 7a5406c72ff5…
AS401156 US assigned 2024-06-10 8906031122a2…
AS401157 US assigned 2024-06-10 15686a481504…
3,101–3,200 of 32,959 « first‹ prev 3031323334 next ›last » of 330