IPv4 Transfers September 2025
In September 2025, the five Regional Internet Registries recorded 956 transfers: 31,745,824 IPv4 addresses in 807 blocks, plus 32 IPv6 blocks and 117 AS numbers. 91 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.
IPv4 addresses transferred
31.7M
807 IPv4 blocks
Registry transfers
956
32 IPv6 / 117 ASN
Inter-RIR transfers
91
558K IPv4 addresses (2%)
Mergers and acquisitions
350
606 market transfers
Transfer Volume by RIR
Transfers counted at the receiving registry. Inter-RIR columns show IPv4 that entered or left the region.
Inter-RIR Transfers September 2025
IPv4 addresses moved from one registry to another. All inter-RIR transfers
| From ↓ / To → | RIPE NCC | ARIN | APNIC | LACNIC | AFRINIC |
|---|---|---|---|---|---|
| RIPE NCC | - | 404K 19 transfers | 0 | 256 1 transfers | 0 |
| ARIN | 79K 42 transfers | - | 48K 9 transfers | 16K 1 transfers | 0 |
| APNIC | 9,472 15 transfers | 512 2 transfers | - | 0 | 0 |
| LACNIC | 256 1 transfers | 256 1 transfers | 0 | - | 0 |
| AFRINIC | 0 | 0 | 0 | 0 | - |
IPv4 Transfers by Block Size
Number of transferred IPv4 blocks per prefix length.
| Prefix length | Addresses per block | Blocks | Share of blocks | IPv4 addresses |
|---|---|---|---|---|
| /8 | 16,777,216 | 1 | 0.1% | 16,777,216 |
| /14 | 262,144 | 7 | 0.9% | 1,835,008 |
| /15 | 131,072 | 15 | 1.9% | 1,966,080 |
| /16 | 65,536 | 148 | 18.3% | 9,699,328 |
| /17 | 32,768 | 9 | 1.1% | 294,912 |
| /18 | 16,384 | 17 | 2.1% | 278,528 |
| /19 | 8,192 | 43 | 5.3% | 352,256 |
| /20 | 4,096 | 45 | 5.6% | 184,320 |
| /21 | 2,048 | 53 | 6.6% | 108,544 |
| /22 | 1,024 | 140 | 17.3% | 143,360 |
| /23 | 512 | 88 | 10.9% | 45,056 |
| /24 | 256 | 238 | 29.5% | 60,928 |
| /25 | 128 | 2 | 0.2% | 256 |
| /27 | 32 | 1 | 0.1% | 32 |
Top Receiving Countries
- 1🇺🇸 United States446K
- 2🇸🇪 Sweden262K
- 3🇩🇪 Germany179K
- 4🇨🇦 Canada124K
- 5🇭🇰 Hong Kong SAR China37K
- 6🇷🇺 Russia36K
- 7🇲🇽 Mexico16K
- 8🇦🇪 United Arab Emirates15K
- 9🇬🇧 United Kingdom12K
- 10🇫🇷 France7,680
Top Source Countries
- 1🇩🇪 Germany408K
- 2🇬🇧 United Kingdom401K
- 3🇺🇸 United States240K
- 4🇭🇰 Hong Kong SAR China27K
- 5🇨🇳 China27K
- 6🇪🇸 Spain24K
- 7🇳🇱 Netherlands16K
- 8🇮🇷 Iran12K
- 9🇧🇬 Bulgaria8,704
- 10🇺🇦 Ukraine6,144
IPv4 transferred across country borders in September 2025.
Largest IPv4 Transfers September 2025
- 38.0.0.0/8M&A ·
- 178.108.0.0/14Transfer ·
- 206.232.0.0/14M&A ·
- 206.4.0.0/14M&A ·
- 204.240.0.0/14M&A ·
- 204.4.0.0/14M&A ·
- 166.224.0.0/14M&A ·
- 166.232.0.0/14M&A ·
- 206.236.0.0/15M&A ·
- 206.148.0.0/15M&A ·
- 206.0.0.0/15M&A ·
- 206.84.0.0/15M&A ·
- 205.198.0.0/15M&A ·
- 206.42.0.0/15M&A ·
- 199.98.0.0/15M&A ·
- 82.84.0.0/15Transfer ·
- 89.60.0.0/15inter-RIRTransfer ·
- 74.244.0.0/15Transfer ·
- 166.228.0.0/15M&A ·
- 166.222.0.0/15M&A ·
- 178.104.0.0/15Transfer ·
- 142.82.0.0/15M&A ·
- 142.84.0.0/15M&A ·
- 70.9.0.0/16Transfer ·
- 83.140.0.0/16Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 38.0.0.0/8 | M&A | |||
| 178.108.0.0/14 | Transfer | |||
| 206.232.0.0/14 | M&A | |||
| 206.4.0.0/14 | M&A | |||
| 204.240.0.0/14 | M&A | |||
| 204.4.0.0/14 | M&A | |||
| 166.224.0.0/14 | M&A | |||
| 166.232.0.0/14 | M&A | |||
| 206.236.0.0/15 | M&A | |||
| 206.148.0.0/15 | M&A | |||
| 206.0.0.0/15 | M&A | |||
| 206.84.0.0/15 | M&A | |||
| 205.198.0.0/15 | M&A | |||
| 206.42.0.0/15 | M&A | |||
| 199.98.0.0/15 | M&A | |||
| 82.84.0.0/15 | Transfer | |||
| 89.60.0.0/15inter-RIR | Transfer | |||
| 74.244.0.0/15 | Transfer | |||
| 166.228.0.0/15 | M&A | |||
| 166.222.0.0/15 | M&A | |||
| 178.104.0.0/15 | Transfer | |||
| 142.82.0.0/15 | M&A | |||
| 142.84.0.0/15 | M&A | |||
| 70.9.0.0/16 | Transfer | |||
| 83.140.0.0/16 | Transfer |