L'indirizzo IP 166.72.20 è fornito da AT&T Services, Inc., che è di proprietà del CIDR (Classless Inter-Domain Routing) 166.72.0.0/16, IP tra 166.72.0.0 a 166.72.255.255 ). Il numero di sistema autonomo (ASN) è 7018.
| ASN | 7018 |
| IP inizia con | 166.72.0.0 |
| IP finale con | 166.72.255.255 |
| ASN Nome | AT&T Services, Inc. |
| CDIR | 166.72.0.0/16 |
| IP numerico | |
| Registe | arin |
| Ultimo aggiornamento | 05/09/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Lake Mary | 28,7599 | -81,3458 | 2017-09-04 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-09-04 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 166.72.20.0 | 2789741568 | 0 |
| 166.72.20.1 | 2789741569 | 0 |
| 166.72.20.2 | 2789741570 | 0 |
| 166.72.20.3 | 2789741571 | 0 |
| 166.72.20.4 | 2789741572 | 0 |
| 166.72.20.5 | 2789741573 | 0 |
| 166.72.20.6 | 2789741574 | 0 |
| 166.72.20.7 | 2789741575 | 0 |
| 166.72.20.8 | 2789741576 | 0 |
| 166.72.20.9 | 2789741577 | 0 |
| 166.72.20.10 | 2789741578 | 0 |
| 166.72.20.11 | 2789741579 | 0 |
| 166.72.20.12 | 2789741580 | 0 |
| 166.72.20.13 | 2789741581 | 0 |
| 166.72.20.14 | 2789741582 | 0 |
| 166.72.20.15 | 2789741583 | 0 |
| 166.72.20.16 | 2789741584 | 0 |
| 166.72.20.17 | 2789741585 | 0 |
| 166.72.20.18 | 2789741586 | 0 |
| 166.72.20.19 | 2789741587 | 0 |
| 166.72.20.20 | 2789741588 | 0 |
| 166.72.20.21 | 2789741589 | 0 |
| 166.72.20.22 | 2789741590 | 0 |
| 166.72.20.23 | 2789741591 | 0 |
| 166.72.20.24 | 2789741592 | 0 |
| 166.72.20.25 | 2789741593 | 0 |
| 166.72.20.26 | 2789741594 | 0 |
| 166.72.20.27 | 2789741595 | 0 |
| 166.72.20.28 | 2789741596 | 0 |
| 166.72.20.29 | 2789741597 | 0 |
| 166.72.20.30 | 2789741598 | 0 |
| 166.72.20.31 | 2789741599 | 0 |
| 166.72.20.32 | 2789741600 | 0 |
| 166.72.20.33 | 2789741601 | 0 |
| 166.72.20.34 | 2789741602 | 0 |
| 166.72.20.35 | 2789741603 | 0 |
| 166.72.20.36 | 2789741604 | 0 |
| 166.72.20.37 | 2789741605 | 0 |
| 166.72.20.38 | 2789741606 | 0 |
| 166.72.20.39 | 2789741607 | 0 |
| 166.72.20.40 | 2789741608 | 0 |
| 166.72.20.41 | 2789741609 | 0 |
| 166.72.20.42 | 2789741610 | 0 |
| 166.72.20.43 | 2789741611 | 0 |
| 166.72.20.44 | 2789741612 | 0 |
| 166.72.20.45 | 2789741613 | 0 |
| 166.72.20.46 | 2789741614 | 0 |
| 166.72.20.47 | 2789741615 | 0 |
| 166.72.20.48 | 2789741616 | 0 |
| 166.72.20.49 | 2789741617 | 0 |
| 166.72.20.50 | 2789741618 | 0 |
| 166.72.20.51 | 2789741619 | 0 |
| 166.72.20.52 | 2789741620 | 0 |
| 166.72.20.53 | 2789741621 | 0 |
| 166.72.20.54 | 2789741622 | 0 |
| 166.72.20.55 | 2789741623 | 0 |
| 166.72.20.56 | 2789741624 | 0 |
| 166.72.20.57 | 2789741625 | 0 |
| 166.72.20.58 | 2789741626 | 0 |
| 166.72.20.59 | 2789741627 | 0 |
| 166.72.20.60 | 2789741628 | 0 |
| 166.72.20.61 | 2789741629 | 0 |
| 166.72.20.62 | 2789741630 | 0 |
| 166.72.20.63 | 2789741631 | 0 |
| 166.72.20.64 | 2789741632 | 0 |
| 166.72.20.65 | 2789741633 | 0 |
| 166.72.20.66 | 2789741634 | 0 |
| 166.72.20.67 | 2789741635 | 0 |
| 166.72.20.68 | 2789741636 | 0 |
| 166.72.20.69 | 2789741637 | 0 |
| 166.72.20.70 | 2789741638 | 0 |
| 166.72.20.71 | 2789741639 | 0 |
| 166.72.20.72 | 2789741640 | 0 |
| 166.72.20.73 | 2789741641 | 0 |
| 166.72.20.74 | 2789741642 | 0 |
| 166.72.20.75 | 2789741643 | 0 |
| 166.72.20.76 | 2789741644 | 0 |
| 166.72.20.77 | 2789741645 | 0 |
| 166.72.20.78 | 2789741646 | 0 |
| 166.72.20.79 | 2789741647 | 0 |
| 166.72.20.80 | 2789741648 | 0 |
| 166.72.20.81 | 2789741649 | 0 |
| 166.72.20.82 | 2789741650 | 0 |
| 166.72.20.83 | 2789741651 | 0 |
| 166.72.20.84 | 2789741652 | 0 |
| 166.72.20.85 | 2789741653 | 0 |