The IP address 131.87.18 is provided by DoD Network Information Center, it's belong to the CDIR (Classless Inter-Domain Routing) 131.86.0.0/15 (range 131.86.0.0 to 131.87.255.255). The autonomous system number (ASN) is 721.
| ASN | 721 |
| IP starting by | 131.86.0.0 |
| IP ending by | 131.87.255.255 |
| ASN Name | DoD Network Information Center |
| CDIR | 131.86.0.0/15 |
| Numerical IP | |
| Registry | arin |
| Last update | 27/11/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | San Francisco | 37.7885 | -122.3946 | 2018-11-27 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2018-11-27 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 131.87.18.0 | 2203521536 | 0 |
| 131.87.18.1 | 2203521537 | 0 |
| 131.87.18.2 | 2203521538 | 0 |
| 131.87.18.3 | 2203521539 | 0 |
| 131.87.18.4 | 2203521540 | 0 |
| 131.87.18.5 | 2203521541 | 0 |
| 131.87.18.6 | 2203521542 | 0 |
| 131.87.18.7 | 2203521543 | 0 |
| 131.87.18.8 | 2203521544 | 0 |
| 131.87.18.9 | 2203521545 | 0 |
| 131.87.18.10 | 2203521546 | 0 |
| 131.87.18.11 | 2203521547 | 0 |
| 131.87.18.12 | 2203521548 | 0 |
| 131.87.18.13 | 2203521549 | 0 |
| 131.87.18.14 | 2203521550 | 0 |
| 131.87.18.15 | 2203521551 | 0 |
| 131.87.18.16 | 2203521552 | 0 |
| 131.87.18.17 | 2203521553 | 0 |
| 131.87.18.18 | 2203521554 | 0 |
| 131.87.18.19 | 2203521555 | 0 |
| 131.87.18.20 | 2203521556 | 0 |
| 131.87.18.21 | 2203521557 | 0 |
| 131.87.18.22 | 2203521558 | 0 |
| 131.87.18.23 | 2203521559 | 0 |
| 131.87.18.24 | 2203521560 | 0 |
| 131.87.18.25 | 2203521561 | 0 |
| 131.87.18.26 | 2203521562 | 0 |
| 131.87.18.27 | 2203521563 | 0 |
| 131.87.18.28 | 2203521564 | 0 |
| 131.87.18.29 | 2203521565 | 0 |
| 131.87.18.30 | 2203521566 | 0 |
| 131.87.18.31 | 2203521567 | 0 |
| 131.87.18.32 | 2203521568 | 0 |
| 131.87.18.33 | 2203521569 | 0 |
| 131.87.18.34 | 2203521570 | 0 |
| 131.87.18.35 | 2203521571 | 0 |
| 131.87.18.36 | 2203521572 | 0 |
| 131.87.18.37 | 2203521573 | 0 |
| 131.87.18.38 | 2203521574 | 0 |
| 131.87.18.39 | 2203521575 | 0 |
| 131.87.18.40 | 2203521576 | 0 |
| 131.87.18.41 | 2203521577 | 0 |
| 131.87.18.42 | 2203521578 | 0 |
| 131.87.18.43 | 2203521579 | 0 |
| 131.87.18.44 | 2203521580 | 0 |
| 131.87.18.45 | 2203521581 | 0 |
| 131.87.18.46 | 2203521582 | 0 |
| 131.87.18.47 | 2203521583 | 0 |
| 131.87.18.48 | 2203521584 | 0 |
| 131.87.18.49 | 2203521585 | 0 |
| 131.87.18.50 | 2203521586 | 0 |
| 131.87.18.51 | 2203521587 | 0 |
| 131.87.18.52 | 2203521588 | 0 |
| 131.87.18.53 | 2203521589 | 0 |
| 131.87.18.54 | 2203521590 | 0 |
| 131.87.18.55 | 2203521591 | 0 |
| 131.87.18.56 | 2203521592 | 0 |
| 131.87.18.57 | 2203521593 | 0 |
| 131.87.18.58 | 2203521594 | 0 |
| 131.87.18.59 | 2203521595 | 0 |
| 131.87.18.60 | 2203521596 | 0 |
| 131.87.18.61 | 2203521597 | 0 |
| 131.87.18.62 | 2203521598 | 0 |
| 131.87.18.63 | 2203521599 | 0 |
| 131.87.18.64 | 2203521600 | 0 |
| 131.87.18.65 | 2203521601 | 0 |
| 131.87.18.66 | 2203521602 | 0 |
| 131.87.18.67 | 2203521603 | 0 |
| 131.87.18.68 | 2203521604 | 0 |
| 131.87.18.69 | 2203521605 | 0 |
| 131.87.18.70 | 2203521606 | 0 |
| 131.87.18.71 | 2203521607 | 0 |
| 131.87.18.72 | 2203521608 | 0 |
| 131.87.18.73 | 2203521609 | 0 |
| 131.87.18.74 | 2203521610 | 0 |
| 131.87.18.75 | 2203521611 | 0 |
| 131.87.18.76 | 2203521612 | 0 |
| 131.87.18.77 | 2203521613 | 0 |
| 131.87.18.78 | 2203521614 | 0 |
| 131.87.18.79 | 2203521615 | 0 |
| 131.87.18.80 | 2203521616 | 0 |
| 131.87.18.81 | 2203521617 | 0 |
| 131.87.18.82 | 2203521618 | 0 |
| 131.87.18.83 | 2203521619 | 0 |
| 131.87.18.84 | 2203521620 | 0 |
| 131.87.18.85 | 2203521621 | 0 |