The IP address 166.203.3 is provided by AT&T Mobility LLC, it's belong to the CDIR (Classless Inter-Domain Routing) 166.203.0.0/17 (range 166.203.0.0 to 166.203.127.255). The autonomous system number (ASN) is 20057.
| ASN | 20057 |
| IP starting by | 166.203.0.0 |
| IP ending by | 166.203.127.255 |
| ASN Name | AT&T Mobility LLC |
| CDIR | 166.203.0.0/17 |
| Numerical IP | |
| Registry | arin |
| Last update | 14/09/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | New York City | 40.7143 | -74.006 | 2017-09-13 |
| MaxMind | US | United States | - | New York | 40.7694 | -73.9609 | 2017-09-13 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 166.203.3.0 | 2798322432 | 0 |
| 166.203.3.1 | 2798322433 | 0 |
| 166.203.3.2 | 2798322434 | 0 |
| 166.203.3.3 | 2798322435 | 0 |
| 166.203.3.4 | 2798322436 | 0 |
| 166.203.3.5 | 2798322437 | 0 |
| 166.203.3.6 | 2798322438 | 0 |
| 166.203.3.7 | 2798322439 | 0 |
| 166.203.3.8 | 2798322440 | 0 |
| 166.203.3.9 | 2798322441 | 0 |
| 166.203.3.10 | 2798322442 | 0 |
| 166.203.3.11 | 2798322443 | 0 |
| 166.203.3.12 | 2798322444 | 0 |
| 166.203.3.13 | 2798322445 | 0 |
| 166.203.3.14 | 2798322446 | 0 |
| 166.203.3.15 | 2798322447 | 0 |
| 166.203.3.16 | 2798322448 | 0 |
| 166.203.3.17 | 2798322449 | 0 |
| 166.203.3.18 | 2798322450 | 0 |
| 166.203.3.19 | 2798322451 | 0 |
| 166.203.3.20 | 2798322452 | 0 |
| 166.203.3.21 | 2798322453 | 0 |
| 166.203.3.22 | 2798322454 | 0 |
| 166.203.3.23 | 2798322455 | 0 |
| 166.203.3.24 | 2798322456 | 0 |
| 166.203.3.25 | 2798322457 | 0 |
| 166.203.3.26 | 2798322458 | 0 |
| 166.203.3.27 | 2798322459 | 0 |
| 166.203.3.28 | 2798322460 | 0 |
| 166.203.3.29 | 2798322461 | 0 |
| 166.203.3.30 | 2798322462 | 0 |
| 166.203.3.31 | 2798322463 | 0 |
| 166.203.3.32 | 2798322464 | 0 |
| 166.203.3.33 | 2798322465 | 0 |
| 166.203.3.34 | 2798322466 | 0 |
| 166.203.3.35 | 2798322467 | 0 |
| 166.203.3.36 | 2798322468 | 0 |
| 166.203.3.37 | 2798322469 | 0 |
| 166.203.3.38 | 2798322470 | 0 |
| 166.203.3.39 | 2798322471 | 0 |
| 166.203.3.40 | 2798322472 | 0 |
| 166.203.3.41 | 2798322473 | 0 |
| 166.203.3.42 | 2798322474 | 0 |
| 166.203.3.43 | 2798322475 | 0 |
| 166.203.3.44 | 2798322476 | 0 |
| 166.203.3.45 | 2798322477 | 0 |
| 166.203.3.46 | 2798322478 | 0 |
| 166.203.3.47 | 2798322479 | 0 |
| 166.203.3.48 | 2798322480 | 0 |
| 166.203.3.49 | 2798322481 | 0 |
| 166.203.3.50 | 2798322482 | 0 |
| 166.203.3.51 | 2798322483 | 0 |
| 166.203.3.52 | 2798322484 | 0 |
| 166.203.3.53 | 2798322485 | 0 |
| 166.203.3.54 | 2798322486 | 0 |
| 166.203.3.55 | 2798322487 | 0 |
| 166.203.3.56 | 2798322488 | 0 |
| 166.203.3.57 | 2798322489 | 0 |
| 166.203.3.58 | 2798322490 | 0 |
| 166.203.3.59 | 2798322491 | 0 |
| 166.203.3.60 | 2798322492 | 0 |
| 166.203.3.61 | 2798322493 | 0 |
| 166.203.3.62 | 2798322494 | 0 |
| 166.203.3.63 | 2798322495 | 0 |
| 166.203.3.64 | 2798322496 | 0 |
| 166.203.3.65 | 2798322497 | 0 |
| 166.203.3.66 | 2798322498 | 0 |
| 166.203.3.67 | 2798322499 | 0 |
| 166.203.3.68 | 2798322500 | 0 |
| 166.203.3.69 | 2798322501 | 0 |
| 166.203.3.70 | 2798322502 | 0 |
| 166.203.3.71 | 2798322503 | 0 |
| 166.203.3.72 | 2798322504 | 0 |
| 166.203.3.73 | 2798322505 | 0 |
| 166.203.3.74 | 2798322506 | 0 |
| 166.203.3.75 | 2798322507 | 0 |
| 166.203.3.76 | 2798322508 | 0 |
| 166.203.3.77 | 2798322509 | 0 |
| 166.203.3.78 | 2798322510 | 0 |
| 166.203.3.79 | 2798322511 | 0 |
| 166.203.3.80 | 2798322512 | 0 |
| 166.203.3.81 | 2798322513 | 0 |
| 166.203.3.82 | 2798322514 | 0 |
| 166.203.3.83 | 2798322515 | 0 |
| 166.203.3.84 | 2798322516 | 0 |
| 166.203.3.85 | 2798322517 | 0 |