| PTR | core-router.seas.upenn.edu |
| A | 2607:f470:8:: 🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 2607:f470:8:56::1 🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 2607:f470:8:1001::1 🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.0.0🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.0.33🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.0.225🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.0.241🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.0.249🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.0.253🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.1.1🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.1.65🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.1.97🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.1.193🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.8.3🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.9.1🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.20.1🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.25.1🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.38.1🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.55.1🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.112.1🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |
| A | 158.130.113.1🇺🇸 UPENN |
| PTR | core-router.seas.upenn.edu |