IPv4 Transfers 2025
In 2025, the five Regional Internet Registries recorded 14,733 transfers that moved 152,693,024 IPv4 addresses in 10,391 blocks, 1,425 of them between two registries. Figures come from the RIRs' official transfer logs and include mergers and acquisitions.
IPv4 addresses transferred
152.7M
10,391 IPv4 blocks
Registry transfers
14,733
999 IPv6 / 3,343 ASN
Inter-RIR transfers
1,425
20.9M IPv4 addresses (14%)
Mergers and acquisitions
3,633
11,100 market transfers
Monthly Transfer Volume 2025 by receiving RIR
| Month | Transfers | IPv4 addresses |
|---|---|---|
| December 2025 | 1,885 | 18,425,088 |
| November 2025 | 950 | 8,965,632 |
| October 2025 | 1,023 | 5,285,888 |
| September 2025 | 956 | 31,745,824 |
| August 2025 | 2,425 | 2,342,528 |
| July 2025 | 1,024 | 2,505,472 |
| June 2025 | 998 | 9,989,248 |
| May 2025 | 981 | 7,415,552 |
| April 2025 | 993 | 13,237,504 |
| March 2025 | 952 | 34,357,248 |
| February 2025 | 1,284 | 13,178,880 |
| January 2025 | 1,262 | 5,244,160 |
Transfer Volume by RIR
Transfers counted at the receiving registry. Inter-RIR columns show IPv4 that entered or left the region.
Inter-RIR Transfers 2025
IPv4 addresses moved from one registry to another. All inter-RIR transfers
| From โ / To โ | RIPE NCC | ARIN | APNIC | LACNIC | AFRINIC |
|---|---|---|---|---|---|
| RIPE NCC | - | 1.1M 80 transfers | 316K 36 transfers | 5,376 8 transfers | 0 |
| ARIN | 10.4M 394 transfers | - | 868K 44 transfers | 150K 7 transfers | 0 |
| APNIC | 269K 186 transfers | 655K 221 transfers | - | 256 1 transfers | 0 |
| LACNIC | 38K 8 transfers | 7.1M 439 transfers | 4,096 1 transfers | - | 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 | 2 | 0.0% | 33,554,432 |
| /10 | 4,194,304 | 2 | 0.0% | 8,388,608 |
| /11 | 2,097,152 | 3 | 0.0% | 6,291,456 |
| /12 | 1,048,576 | 6 | 0.1% | 6,291,456 |
| /13 | 524,288 | 19 | 0.2% | 9,961,472 |
| /14 | 262,144 | 52 | 0.5% | 13,631,488 |
| /15 | 131,072 | 99 | 1.0% | 12,976,128 |
| /16 | 65,536 | 578 | 5.6% | 37,879,808 |
| /17 | 32,768 | 169 | 1.6% | 5,537,792 |
| /18 | 16,384 | 277 | 2.7% | 4,538,368 |
| /19 | 8,192 | 579 | 5.6% | 4,743,168 |
| /20 | 4,096 | 786 | 7.6% | 3,219,456 |
| /21 | 2,048 | 791 | 7.6% | 1,619,968 |
| /22 | 1,024 | 2,475 | 23.8% | 2,534,400 |
| /23 | 512 | 1,407 | 13.5% | 720,384 |
| /24 | 256 | 3,141 | 30.2% | 804,096 |
| /25 | 128 | 4 | 0.0% | 512 |
| /27 | 32 | 1 | 0.0% | 32 |
Top Receiving Countries
- 1๐บ๐ธ United States9.5M
- 2๐ฉ๐ช Germany1.0M
- 3๐ฌ๐ง United Kingdom841K
- 4๐ธ๐ฌ Singapore656K
- 5๐จ๐ฆ Canada619K
- 6๐ฆ๐ช United Arab Emirates359K
- 7๐ธ๐ช Sweden293K
- 8๐ธ๐จ Seychelles284K
- 9๐ต๐ฆ Panama263K
Top Source Countries
- 1๐ง๐ท Brazil7.2M
- 2๐บ๐ธ United States4.6M
- 3๐จ๐ฆ Canada919K
- 4๐ฌ๐ง United Kingdom747K
- 5๐ฉ๐ช Germany588K
- 6๐ฏ๐ต Japan377K
- 7๐ช๐ธ Spain345K
- 8๐ฆ๐บ Australia295K
- 9๐ฎ๐ช Ireland268K
- 10๐ญ๐ฐ Hong Kong SAR China236K
IPv4 transferred across country borders in 2025. Registry logs before mid-2025 do not carry a country for every transfer, so this ranking undercounts some regions.
Largest IPv4 Transfers 2025
- 38.0.0.0/8M&A ยท
- 12.0.0.0/8M&A ยท
- 184.192.0.0/10Transfer ยท
- 107.64.0.0/10M&A ยท
- 208.0.0.0/11M&A ยท
- 107.32.0.0/11inter-RIRTransfer ยท
- 107.224.0.0/11M&A ยท
- 63.160.0.0/12M&A ยท
- 48.160.0.0/12inter-RIRTransfer ยท
- 70.64.0.0/12M&A ยท
- 166.192.0.0/12Transfer ยท
- 166.240.0.0/12Transfer ยท
- 184.128.0.0/12M&A ยท
- 48.176.0.0/13inter-RIRTransfer ยท
- 205.240.0.0/13M&A ยท
- 65.160.0.0/13M&A ยท
- 50.8.0.0/13Transfer ยท
- 47.64.0.0/13inter-RIRTransfer ยท
- 48.184.0.0/13inter-RIRTransfer ยท
- 50.64.0.0/13M&A ยท
- 184.64.0.0/13M&A ยท
- 174.0.0.0/13M&A ยท
- 24.80.0.0/13M&A ยท
- 96.48.0.0/13M&A ยท
- 24.64.0.0/13M&A ยท
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 38.0.0.0/8 | PSINet, Inc. | Cogent Communications | M&A | |
| 12.0.0.0/8 | AT&T Services, Inc. | AT&T Enterprises, LLC | M&A | |
| 184.192.0.0/10 | T-Mobile USA, Inc. | Amazon.com, Inc. | Transfer | |
| 107.64.0.0/10 | AT&T Mobility LLC | AT&T Enterprises, LLC | M&A | |
| 208.0.0.0/11 | Sprint | Cogent Communications, LLC | M&A | |
| 107.32.0.0/11inter-RIR | T-Mobile USA, Inc. | Microsoft Limited | Transfer | |
| 107.224.0.0/11 | AT&T Mobility LLC | AT&T Enterprises, LLC | M&A | |
| 63.160.0.0/12 | Sprint | Cogent Communications, LLC | M&A | |
| 48.160.0.0/12inter-RIR | The Prudential Insurance Company of America | Microsoft Limited | Transfer | |
| 70.64.0.0/12 | Shaw Communications Inc. | Shaw Communications | M&A | |
| 166.192.0.0/12 | Wireless Data Service Provider Corporation | AT&T Enterprises, LLC | Transfer | |
| 166.240.0.0/12 | Wireless Data Service Provider Corporation | Verizon Business | Transfer | |
| 184.128.0.0/12 | AT&T Mobility LLC | AT&T Enterprises, LLC | M&A | |
| 48.176.0.0/13inter-RIR | The Prudential Insurance Company of America | Microsoft Limited | Transfer | |
| 205.240.0.0/13 | Sprint | Cogent Communications, LLC | M&A | |
| 65.160.0.0/13 | Sprint | Cogent Communications, LLC | M&A | |
| 50.8.0.0/13 | T-Mobile USA, Inc. | Amazon.com, Inc. | Transfer | |
| 47.64.0.0/13inter-RIR | Vodafone US Inc. | Vodafone GmbH | Transfer | |
| 48.184.0.0/13inter-RIR | The Prudential Insurance Company of America | Microsoft Limited | Transfer | |
| 50.64.0.0/13 | Shaw Communications Inc. | Shaw Communications | M&A | |
| 184.64.0.0/13 | Shaw Communications Inc. | Shaw Communications | M&A | |
| 174.0.0.0/13 | Shaw Communications Inc. | Shaw Communications | M&A | |
| 24.80.0.0/13 | Shaw Communications Inc. | Shaw Communications | M&A | |
| 96.48.0.0/13 | Shaw Communications Inc. | Shaw Communications | M&A | |
| 24.64.0.0/13 | Shaw Communications Inc. | Shaw Communications | M&A |