L'indirizzo IP 81.77.81 è fornito da UK Backbone Network, che è di proprietà del CIDR (Classless Inter-Domain Routing) 81.76.0.0/14, IP tra 81.76.0.0 a 81.79.255.255 ). Il numero di sistema autonomo (ASN) è 5388.
| ASN | 5388 |
| IP inizia con | 81.76.0.0 |
| IP finale con | 81.79.255.255 |
| ASN Nome | UK Backbone Network |
| CDIR | 81.76.0.0/14 |
| IP numerico | |
| Registe | ripencc |
| Ultimo aggiornamento | 24/07/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | GB | United Kingdom | - | Leeds | 51,2468 | 0,6068 | 2017-07-03 |
| MaxMind | GB | United Kingdom | - | - | 51,4964 | -0,1224 | 2017-07-03 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.77.81.0 | 1364021504 | 0 |
| 81.77.81.1 | 1364021505 | 0 |
| 81.77.81.2 | 1364021506 | 0 |
| 81.77.81.3 | 1364021507 | 0 |
| 81.77.81.4 | 1364021508 | 0 |
| 81.77.81.5 | 1364021509 | 0 |
| 81.77.81.6 | 1364021510 | 0 |
| 81.77.81.7 | 1364021511 | 0 |
| 81.77.81.8 | 1364021512 | 0 |
| 81.77.81.9 | 1364021513 | 0 |
| 81.77.81.10 | 1364021514 | 0 |
| 81.77.81.11 | 1364021515 | 0 |
| 81.77.81.12 | 1364021516 | 0 |
| 81.77.81.13 | 1364021517 | 0 |
| 81.77.81.14 | 1364021518 | 0 |
| 81.77.81.15 | 1364021519 | 0 |
| 81.77.81.16 | 1364021520 | 0 |
| 81.77.81.17 | 1364021521 | 0 |
| 81.77.81.18 | 1364021522 | 0 |
| 81.77.81.19 | 1364021523 | 0 |
| 81.77.81.20 | 1364021524 | 0 |
| 81.77.81.21 | 1364021525 | 0 |
| 81.77.81.22 | 1364021526 | 0 |
| 81.77.81.23 | 1364021527 | 0 |
| 81.77.81.24 | 1364021528 | 0 |
| 81.77.81.25 | 1364021529 | 0 |
| 81.77.81.26 | 1364021530 | 0 |
| 81.77.81.27 | 1364021531 | 0 |
| 81.77.81.28 | 1364021532 | 0 |
| 81.77.81.29 | 1364021533 | 0 |
| 81.77.81.30 | 1364021534 | 0 |
| 81.77.81.31 | 1364021535 | 0 |
| 81.77.81.32 | 1364021536 | 0 |
| 81.77.81.33 | 1364021537 | 0 |
| 81.77.81.34 | 1364021538 | 0 |
| 81.77.81.35 | 1364021539 | 0 |
| 81.77.81.36 | 1364021540 | 0 |
| 81.77.81.37 | 1364021541 | 0 |
| 81.77.81.38 | 1364021542 | 0 |
| 81.77.81.39 | 1364021543 | 0 |
| 81.77.81.40 | 1364021544 | 0 |
| 81.77.81.41 | 1364021545 | 0 |
| 81.77.81.42 | 1364021546 | 0 |
| 81.77.81.43 | 1364021547 | 0 |
| 81.77.81.44 | 1364021548 | 0 |
| 81.77.81.45 | 1364021549 | 0 |
| 81.77.81.46 | 1364021550 | 0 |
| 81.77.81.47 | 1364021551 | 0 |
| 81.77.81.48 | 1364021552 | 0 |
| 81.77.81.49 | 1364021553 | 0 |
| 81.77.81.50 | 1364021554 | 0 |
| 81.77.81.51 | 1364021555 | 0 |
| 81.77.81.52 | 1364021556 | 0 |
| 81.77.81.53 | 1364021557 | 0 |
| 81.77.81.54 | 1364021558 | 0 |
| 81.77.81.55 | 1364021559 | 0 |
| 81.77.81.56 | 1364021560 | 0 |
| 81.77.81.57 | 1364021561 | 0 |
| 81.77.81.58 | 1364021562 | 0 |
| 81.77.81.59 | 1364021563 | 0 |
| 81.77.81.60 | 1364021564 | 0 |
| 81.77.81.61 | 1364021565 | 0 |
| 81.77.81.62 | 1364021566 | 0 |
| 81.77.81.63 | 1364021567 | 0 |
| 81.77.81.64 | 1364021568 | 0 |
| 81.77.81.65 | 1364021569 | 0 |
| 81.77.81.66 | 1364021570 | 0 |
| 81.77.81.67 | 1364021571 | 0 |
| 81.77.81.68 | 1364021572 | 0 |
| 81.77.81.69 | 1364021573 | 0 |
| 81.77.81.70 | 1364021574 | 0 |
| 81.77.81.71 | 1364021575 | 0 |
| 81.77.81.72 | 1364021576 | 0 |
| 81.77.81.73 | 1364021577 | 0 |
| 81.77.81.74 | 1364021578 | 0 |
| 81.77.81.75 | 1364021579 | 0 |
| 81.77.81.76 | 1364021580 | 0 |
| 81.77.81.77 | 1364021581 | 0 |
| 81.77.81.78 | 1364021582 | 0 |
| 81.77.81.79 | 1364021583 | 0 |
| 81.77.81.80 | 1364021584 | 0 |
| 81.77.81.81 | 1364021585 | 0 |
| 81.77.81.82 | 1364021586 | 0 |
| 81.77.81.83 | 1364021587 | 0 |
| 81.77.81.84 | 1364021588 | 0 |
| 81.77.81.85 | 1364021589 | 0 |
| IP | Numerical IP | DNS |
| 81.77.81.86 | 1364021590 | 0 |
| 81.77.81.87 | 1364021591 | 0 |
| 81.77.81.88 | 1364021592 | 0 |
| 81.77.81.89 | 1364021593 | 0 |
| 81.77.81.90 | 1364021594 | 0 |
| 81.77.81.91 | 1364021595 | 0 |
| 81.77.81.92 | 1364021596 | 0 |
| 81.77.81.93 | 1364021597 | 0 |
| 81.77.81.94 | 1364021598 | 0 |
| 81.77.81.95 | 1364021599 | 0 |
| 81.77.81.96 | 1364021600 | 0 |
| 81.77.81.97 | 1364021601 | 0 |
| 81.77.81.98 | 1364021602 | 0 |
| 81.77.81.99 | 1364021603 | 0 |
| 81.77.81.100 | 1364021604 | 0 |
| 81.77.81.101 | 1364021605 | 0 |
| 81.77.81.102 | 1364021606 | 0 |
| 81.77.81.103 | 1364021607 | 0 |
| 81.77.81.104 | 1364021608 | 0 |
| 81.77.81.105 | 1364021609 | 0 |
| 81.77.81.106 | 1364021610 | 0 |
| 81.77.81.107 | 1364021611 | 0 |
| 81.77.81.108 | 1364021612 | 0 |
| 81.77.81.109 | 1364021613 | 0 |
| 81.77.81.110 | 1364021614 | 0 |
| 81.77.81.111 | 1364021615 | 0 |
| 81.77.81.112 | 1364021616 | 0 |
| 81.77.81.113 | 1364021617 | 0 |
| 81.77.81.114 | 1364021618 | 0 |
| 81.77.81.115 | 1364021619 | 0 |
| 81.77.81.116 | 1364021620 | 0 |
| 81.77.81.117 | 1364021621 | 0 |
| 81.77.81.118 | 1364021622 | 0 |
| 81.77.81.119 | 1364021623 | 0 |
| 81.77.81.120 | 1364021624 | 0 |
| 81.77.81.121 | 1364021625 | 0 |
| 81.77.81.122 | 1364021626 | 0 |
| 81.77.81.123 | 1364021627 | 0 |
| 81.77.81.124 | 1364021628 | 0 |
| 81.77.81.125 | 1364021629 | 0 |
| 81.77.81.126 | 1364021630 | 0 |
| 81.77.81.127 | 1364021631 | 0 |
| 81.77.81.128 | 1364021632 | 0 |
| 81.77.81.129 | 1364021633 | 0 |
| 81.77.81.130 | 1364021634 | 0 |
| 81.77.81.131 | 1364021635 | 0 |
| 81.77.81.132 | 1364021636 | 0 |
| 81.77.81.133 | 1364021637 | 0 |
| 81.77.81.134 | 1364021638 | 0 |
| 81.77.81.135 | 1364021639 | 0 |
| 81.77.81.136 | 1364021640 | 0 |
| 81.77.81.137 | 1364021641 | 0 |
| 81.77.81.138 | 1364021642 | 0 |
| 81.77.81.139 | 1364021643 | 0 |
| 81.77.81.140 | 1364021644 | 0 |
| 81.77.81.141 | 1364021645 | 0 |
| 81.77.81.142 | 1364021646 | 0 |
| 81.77.81.143 | 1364021647 | 0 |
| 81.77.81.144 | 1364021648 | 0 |
| 81.77.81.145 | 1364021649 | 0 |
| 81.77.81.146 | 1364021650 | 0 |
| 81.77.81.147 | 1364021651 | 0 |
| 81.77.81.148 | 1364021652 | 0 |
| 81.77.81.149 | 1364021653 | 0 |
| 81.77.81.150 | 1364021654 | 0 |
| 81.77.81.151 | 1364021655 | 0 |
| 81.77.81.152 | 1364021656 | 0 |
| 81.77.81.153 | 1364021657 | 0 |
| 81.77.81.154 | 1364021658 | 0 |
| 81.77.81.155 | 1364021659 | 0 |
| 81.77.81.156 | 1364021660 | 0 |
| 81.77.81.157 | 1364021661 | 0 |
| 81.77.81.158 | 1364021662 | 0 |
| 81.77.81.159 | 1364021663 | 0 |
| 81.77.81.160 | 1364021664 | 0 |
| 81.77.81.161 | 1364021665 | 0 |
| 81.77.81.162 | 1364021666 | 0 |
| 81.77.81.163 | 1364021667 | 0 |
| 81.77.81.164 | 1364021668 | 0 |
| 81.77.81.165 | 1364021669 | 0 |
| 81.77.81.166 | 1364021670 | 0 |
| 81.77.81.167 | 1364021671 | 0 |
| 81.77.81.168 | 1364021672 | 0 |
| 81.77.81.169 | 1364021673 | 0 |
| 81.77.81.170 | 1364021674 | 0 |
| 81.77.81.171 | 1364021675 | 0 |
| IP | Numerical IP | DNS |
| 81.77.81.172 | 1364021676 | 0 |
| 81.77.81.173 | 1364021677 | 0 |
| 81.77.81.174 | 1364021678 | 0 |
| 81.77.81.175 | 1364021679 | 0 |
| 81.77.81.176 | 1364021680 | 0 |
| 81.77.81.177 | 1364021681 | 0 |
| 81.77.81.178 | 1364021682 | 0 |
| 81.77.81.179 | 1364021683 | 0 |
| 81.77.81.180 | 1364021684 | 0 |
| 81.77.81.181 | 1364021685 | 0 |
| 81.77.81.182 | 1364021686 | 0 |
| 81.77.81.183 | 1364021687 | 0 |
| 81.77.81.184 | 1364021688 | 0 |
| 81.77.81.185 | 1364021689 | 0 |
| 81.77.81.186 | 1364021690 | 0 |
| 81.77.81.187 | 1364021691 | 0 |
| 81.77.81.188 | 1364021692 | 0 |
| 81.77.81.189 | 1364021693 | 0 |
| 81.77.81.190 | 1364021694 | 0 |
| 81.77.81.191 | 1364021695 | 0 |
| 81.77.81.192 | 1364021696 | 0 |
| 81.77.81.193 | 1364021697 | 0 |
| 81.77.81.194 | 1364021698 | 0 |
| 81.77.81.195 | 1364021699 | 0 |
| 81.77.81.196 | 1364021700 | 0 |
| 81.77.81.197 | 1364021701 | 0 |
| 81.77.81.198 | 1364021702 | 0 |
| 81.77.81.199 | 1364021703 | 0 |
| 81.77.81.200 | 1364021704 | 0 |
| 81.77.81.201 | 1364021705 | 0 |
| 81.77.81.202 | 1364021706 | 0 |
| 81.77.81.203 | 1364021707 | 0 |
| 81.77.81.204 | 1364021708 | 0 |
| 81.77.81.205 | 1364021709 | 0 |
| 81.77.81.206 | 1364021710 | 0 |
| 81.77.81.207 | 1364021711 | 0 |
| 81.77.81.208 | 1364021712 | 0 |
| 81.77.81.209 | 1364021713 | 0 |
| 81.77.81.210 | 1364021714 | 0 |
| 81.77.81.211 | 1364021715 | 0 |
| 81.77.81.212 | 1364021716 | 0 |
| 81.77.81.213 | 1364021717 | 0 |
| 81.77.81.214 | 1364021718 | 0 |
| 81.77.81.215 | 1364021719 | 0 |
| 81.77.81.216 | 1364021720 | 0 |
| 81.77.81.217 | 1364021721 | 0 |
| 81.77.81.218 | 1364021722 | 0 |
| 81.77.81.219 | 1364021723 | 0 |
| 81.77.81.220 | 1364021724 | 0 |
| 81.77.81.221 | 1364021725 | 0 |
| 81.77.81.222 | 1364021726 | 0 |
| 81.77.81.223 | 1364021727 | 0 |
| 81.77.81.224 | 1364021728 | 0 |
| 81.77.81.225 | 1364021729 | 0 |
| 81.77.81.226 | 1364021730 | 0 |
| 81.77.81.227 | 1364021731 | 0 |
| 81.77.81.228 | 1364021732 | 0 |
| 81.77.81.229 | 1364021733 | 0 |
| 81.77.81.230 | 1364021734 | 0 |
| 81.77.81.231 | 1364021735 | 0 |
| 81.77.81.232 | 1364021736 | 0 |
| 81.77.81.233 | 1364021737 | 0 |
| 81.77.81.234 | 1364021738 | 0 |
| 81.77.81.235 | 1364021739 | 0 |
| 81.77.81.236 | 1364021740 | 0 |
| 81.77.81.237 | 1364021741 | 0 |
| 81.77.81.238 | 1364021742 | 0 |
| 81.77.81.239 | 1364021743 | 0 |
| 81.77.81.240 | 1364021744 | 0 |
| 81.77.81.241 | 1364021745 | 0 |
| 81.77.81.242 | 1364021746 | 0 |
| 81.77.81.243 | 1364021747 | 0 |
| 81.77.81.244 | 1364021748 | 0 |
| 81.77.81.245 | 1364021749 | 0 |
| 81.77.81.246 | 1364021750 | 0 |
| 81.77.81.247 | 1364021751 | 0 |
| 81.77.81.248 | 1364021752 | 0 |
| 81.77.81.249 | 1364021753 | 0 |
| 81.77.81.250 | 1364021754 | 0 |
| 81.77.81.251 | 1364021755 | 0 |
| 81.77.81.252 | 1364021756 | 0 |
| 81.77.81.253 | 1364021757 | 0 |
| 81.77.81.254 | 1364021758 | 0 |
| 81.77.81.255 | 1364021759 | 0 |