| 1 |
2017-06-26 |
IPV4 |
192.42.240.0/24 |
ARIN Optical Research Associates |
→ |
ARINSynopsys Inc. |
256 addr |
1 |
PI Leg
M&A
|
| 2 |
2018-04-03 |
ASN |
AS394027 |
ARINBlack Duck Software, Inc |
→ |
ARINSynopsys Inc. |
1 ASN |
1 |
PI M&A
|
| 3 |
2018-04-03 |
IPV6 |
2620:121:e000::/44 |
ARINBlack Duck Software, Inc |
→ |
ARINSynopsys Inc. |
16 /48 |
1 |
PI M&A
|
| 4 |
2018-04-03 |
IPV4 |
192.231.134.0/24 |
ARINBlack Duck Software, Inc |
→ |
ARINSynopsys Inc. |
256 addr |
1 |
PI M&A
|
| 5 |
2023-08-09 |
ASN |
AS17268 |
ARINWhiteHat Security, Inc. |
→ |
ARINSynopsys Inc. |
1 ASN |
1 |
PI M&A
|
| 6 |
2023-08-09 |
ASN |
AS397868 |
ARINWhiteHat Security, Inc. |
→ |
ARINSynopsys Inc. |
1 ASN |
1 |
PI M&A
|
| 7 |
2023-08-09 |
ASN |
AS397875 |
ARINWhiteHat Security, Inc. |
→ |
ARINSynopsys Inc. |
1 ASN |
1 |
PI M&A
|
| 8 |
2023-08-09 |
IPV4 |
162.223.124.0/24 |
ARINWhiteHat Security, Inc. |
→ |
ARINSynopsys Inc. |
256 addr |
1 |
PI M&A
|
| 9 |
2023-08-09 |
IPV4 |
162.244.4.0/23 |
ARINWhiteHat Security, Inc. |
→ |
ARINSynopsys Inc. |
512 addr |
1 |
PI M&A
|
| 10 |
2026-04-14 |
ASN |
AS53465 |
ARINANSYS, INC |
→ |
ARINSynopsys Inc. |
1 ASN |
1 |
PI M&A
|
| 11 |
2026-04-14 |
ASN |
AS23351 |
ARINAnsys, Inc. - Lebanon NH |
→ |
ARINSynopsys Inc. |
1 ASN |
1 |
PI M&A
|
| 12 |
2026-04-14 |
IPV4 |
192.104.24.0/24 |
ARINANSYS, INC |
→ |
ARINSynopsys Inc. |
256 addr |
1 |
PI Leg
M&A
|
| 13 |
2026-04-14 |
IPV4 |
204.10.84.0/22 |
ARINAnsys, Inc. - Lebanon NH |
→ |
ARINSynopsys Inc. |
1 024 addr |
1 |
PI M&A
|
| 14 |
2026-04-14 |
IPV6 |
2620:3c:40c0::/48 |
ARINLivermore Software Technology Corporation |
→ |
ARINSynopsys Inc. |
1 /48 |
1 |
PI M&A
|
| 15 |
2026-04-14 |
IPV4 |
192.189.161.0/24 |
ARINLivermore Software Technology Corporation |
→ |
ARINSynopsys Inc. |
256 addr |
1 |
PI Leg
M&A
|
| 16 |
2026-05-19 |
ASN |
AS397868 |
ARINSynopsys Inc. |
→ |
ARINBlack Duck Software, Inc. |
1 ASN |
1 |
PI M&A
|
| 17 |
2026-05-19 |
ASN |
AS394027 |
ARINSynopsys Inc. |
→ |
ARINBlack Duck Software, Inc. |
1 ASN |
1 |
PI M&A
|
| 18 |
2026-05-19 |
IPV4 |
192.231.134.0/24 |
ARINSynopsys Inc. |
→ |
ARINBlack Duck Software, Inc. |
256 addr |
1 |
PI M&A
|
| 19 |
2026-05-19 |
IPV4 |
162.223.124.0/24 |
ARINSynopsys Inc. |
→ |
ARINBlack Duck Software, Inc. |
256 addr |
1 |
PI M&A
|
| 20 |
2026-05-19 |
IPV4 |
162.244.4.0/23 |
ARINSynopsys Inc. |
→ |
ARINBlack Duck Software, Inc. |
512 addr |
1 |
PI M&A
|
| 21 |
2026-05-19 |
IPV6 |
2620:121:e000::/44 |
ARINSynopsys Inc. |
→ |
ARINBlack Duck Software, Inc. |
16 /48 |
1 |
PI M&A
|