L'indirizzo IP 172.0.138 è fornito da AT&T Services, Inc., che è di proprietà del CIDR (Classless Inter-Domain Routing) 172.0.0.0/12, IP tra 172.0.0.0 a 172.15.255.255 ). Il numero di sistema autonomo (ASN) è 7018.
| ASN | 7018 |
| IP inizia con | 172.0.0.0 |
| IP finale con | 172.15.255.255 |
| ASN Nome | AT&T Services, Inc. |
| CDIR | 172.0.0.0/12 |
| IP numerico | |
| Registe | arin |
| Ultimo aggiornamento | 22/09/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Evanston | 42,0411 | -87,6901 | 2017-09-21 |
| MaxMind | US | United States | - | Chicago | 42,0076 | -87,6956 | 2017-09-21 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 172.0.138.0 | 2885716480 | 0 |
| 172.0.138.1 | 2885716481 | 0 |
| 172.0.138.2 | 2885716482 | 0 |
| 172.0.138.3 | 2885716483 | 0 |
| 172.0.138.4 | 2885716484 | 0 |
| 172.0.138.5 | 2885716485 | 0 |
| 172.0.138.6 | 2885716486 | 0 |
| 172.0.138.7 | 2885716487 | 0 |
| 172.0.138.8 | 2885716488 | 0 |
| 172.0.138.9 | 2885716489 | 0 |
| 172.0.138.10 | 2885716490 | 0 |
| 172.0.138.11 | 2885716491 | 0 |
| 172.0.138.12 | 2885716492 | 0 |
| 172.0.138.13 | 2885716493 | 0 |
| 172.0.138.14 | 2885716494 | 0 |
| 172.0.138.15 | 2885716495 | 0 |
| 172.0.138.16 | 2885716496 | 0 |
| 172.0.138.17 | 2885716497 | 0 |
| 172.0.138.18 | 2885716498 | 0 |
| 172.0.138.19 | 2885716499 | 0 |
| 172.0.138.20 | 2885716500 | 0 |
| 172.0.138.21 | 2885716501 | 0 |
| 172.0.138.22 | 2885716502 | 0 |
| 172.0.138.23 | 2885716503 | 0 |
| 172.0.138.24 | 2885716504 | 0 |
| 172.0.138.25 | 2885716505 | 0 |
| 172.0.138.26 | 2885716506 | 0 |
| 172.0.138.27 | 2885716507 | 0 |
| 172.0.138.28 | 2885716508 | 0 |
| 172.0.138.29 | 2885716509 | 0 |
| 172.0.138.30 | 2885716510 | 0 |
| 172.0.138.31 | 2885716511 | 0 |
| 172.0.138.32 | 2885716512 | 0 |
| 172.0.138.33 | 2885716513 | 0 |
| 172.0.138.34 | 2885716514 | 0 |
| 172.0.138.35 | 2885716515 | 0 |
| 172.0.138.36 | 2885716516 | 0 |
| 172.0.138.37 | 2885716517 | 0 |
| 172.0.138.38 | 2885716518 | 0 |
| 172.0.138.39 | 2885716519 | 0 |
| 172.0.138.40 | 2885716520 | 0 |
| 172.0.138.41 | 2885716521 | 0 |
| 172.0.138.42 | 2885716522 | 0 |
| 172.0.138.43 | 2885716523 | 0 |
| 172.0.138.44 | 2885716524 | 0 |
| 172.0.138.45 | 2885716525 | 0 |
| 172.0.138.46 | 2885716526 | 0 |
| 172.0.138.47 | 2885716527 | 0 |
| 172.0.138.48 | 2885716528 | 0 |
| 172.0.138.49 | 2885716529 | 0 |
| 172.0.138.50 | 2885716530 | 0 |
| 172.0.138.51 | 2885716531 | 0 |
| 172.0.138.52 | 2885716532 | 0 |
| 172.0.138.53 | 2885716533 | 0 |
| 172.0.138.54 | 2885716534 | 0 |
| 172.0.138.55 | 2885716535 | 0 |
| 172.0.138.56 | 2885716536 | 0 |
| 172.0.138.57 | 2885716537 | 0 |
| 172.0.138.58 | 2885716538 | 0 |
| 172.0.138.59 | 2885716539 | 0 |
| 172.0.138.60 | 2885716540 | 0 |
| 172.0.138.61 | 2885716541 | 0 |
| 172.0.138.62 | 2885716542 | 0 |
| 172.0.138.63 | 2885716543 | 0 |
| 172.0.138.64 | 2885716544 | 0 |
| 172.0.138.65 | 2885716545 | 0 |
| 172.0.138.66 | 2885716546 | 0 |
| 172.0.138.67 | 2885716547 | 0 |
| 172.0.138.68 | 2885716548 | 0 |
| 172.0.138.69 | 2885716549 | 0 |
| 172.0.138.70 | 2885716550 | 0 |
| 172.0.138.71 | 2885716551 | 0 |
| 172.0.138.72 | 2885716552 | 0 |
| 172.0.138.73 | 2885716553 | 0 |
| 172.0.138.74 | 2885716554 | 0 |
| 172.0.138.75 | 2885716555 | 0 |
| 172.0.138.76 | 2885716556 | 0 |
| 172.0.138.77 | 2885716557 | 0 |
| 172.0.138.78 | 2885716558 | 0 |
| 172.0.138.79 | 2885716559 | 0 |
| 172.0.138.80 | 2885716560 | 0 |
| 172.0.138.81 | 2885716561 | 0 |
| 172.0.138.82 | 2885716562 | 0 |
| 172.0.138.83 | 2885716563 | 0 |
| 172.0.138.84 | 2885716564 | 0 |
| 172.0.138.85 | 2885716565 | 0 |