Address
0x7B21DE3E6808790C35A0fffddbB0B3A27a026AD4
0 ETH
Confirmed | |
Balance | 0 ETH |
Transactions | 14 |
Non-contract Transactions | 7 |
Internal Transactions | 0 |
Nonce | 3 |
Contract | Quantity | Value | Transfers# |
---|---|---|---|
BitClave | 1 CAT | 1 | |
EMO tokens | 11.40479768 EMO | 1 | |
OMGToken | 0.859081184427928478 OMG | 1 | |
Streamr (old) | 1.207313585117541657 XDATA | 1 | |
VIU | 228.0959536 VIU | 1 | |
XENON | 731.82117369215892406 XNN | 1 | |
0x52903256dd18D85c2Dc4a6C999907c9793eA61E3 | 0 | 1 |
Transactions
mined 2322 days 21 hours ago
Transfer
mined 2324 days 12 hours ago
Transfer
mined 2324 days 13 hours ago
Transfer
mined 2325 days 2 hours ago
0xf190ac5f
ERC20 Token Transfers
mined 2329 days 2 hours ago
0xaad41a41
ERC20 Token Transfers
11.987447822421173664 EMO
11.81118751 EMO
11.046593585739667168 EMO
11.99932779 EMO
11.65884322 EMO
11.85145779 EMO
11.55887342 EMO
11.266586548728386226 EMO
11.661260555877190664 EMO
11.425053632 EMO
11.01411612 EMO
11.42167127 EMO
11.41308984695913296 EMO
11.06717410797701984 EMO
11.161755044 EMO
11.2870568105891 EMO
11.994133576 EMO
11.910014795314949138 EMO
11.6365131123 EMO
11.231192302485592786 EMO
11.751269335918838517 EMO
11.30289295 EMO
11.87758176 EMO
11.085378538 EMO
11.74018531 EMO
11.899523295 EMO
11.368542726 EMO
11.94534599 EMO
11.10015804 EMO
11.884206510252110976 EMO
11.57035075 EMO
11.70462053 EMO
11.003639835215725309 EMO
11.99951885 EMO
11.970080425938682 EMO
11.06977968 EMO
11.258509666104428522 EMO
11.762990144924666175 EMO
11.66954455 EMO
11.48564495659404648 EMO
11.38963955 EMO
11.99904411 EMO
11.362845094828826438 EMO
11.05465093914414571 EMO
11.01247576 EMO
11.27058814853739218 EMO
11.999520404 EMO
11.612838587 EMO
11.41485147 EMO
11.125538019999995904 EMO
11.53084748 EMO
11.498048565749195552 EMO
11.569815743561462503 EMO
11.81426168584320126 EMO
11.70507917 EMO
0x7B21DE3E6808790C35A0fffddbB0B3A27a026AD4
11.40479768 EMO
11.3389576522 EMO
11.297027311426063653 EMO
11.49426407464 EMO
11.915035422600000512 EMO
11.12870056 EMO
11.993319320459049105 EMO
11.00000588 EMO
11.011508394 EMO
11.40215876718 EMO
11.554434430000000008 EMO
11.489288684 EMO
11.95744377 EMO
mined 2354 days 16 hours ago
0x0e6848cc
ERC20 Token Transfers
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0x7B21DE3E6808790C35A0fffddbB0B3A27a026AD4
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
0.000000000000000777
ERC20 Token Transfers
200.62793756 VIU
19.06201111265732526 VIU
156.8601444 VIU
2165.7281934 VIU
409.27116312742735464 VIU
3.00189543462990608 VIU
160.15114728 VIU
2863.5109553184061227 VIU
827.8431834 VIU
20.00588490720619804 VIU
129.93092652386857542 VIU
369.4407748 VIU
24.00064471938677082 VIU
485.50014492982804942 VIU
0x7B21DE3E6808790C35A0fffddbB0B3A27a026AD4
228.0959536 VIU
19.96973522 VIU
461.3249932 VIU
63.68374913169163744 VIU
72.030994389827428 VIU
2.75963117247007526 VIU
318.3833242 VIU
923.97677379999958 VIU
6.52947386623388 VIU
65.717373202881749 VIU
194.8931014910632311 VIU
37.31872144 VIU
12.73960940000000084 VIU
69.08492411217089522 VIU
219.9972862 VIU
3.97048653717739734 VIU
20.6362331891945076 VIU
151.7525538 VIU
49.43886328 VIU
22.316579175 VIU
77.69584045700980972 VIU
16.03168997125932096 VIU
2.39438030449884 VIU
20.09148231633719936 VIU
20.4015003987462104 VIU
934.5373674 VIU
61.09135666 VIU
253.76851580000002048 VIU
22.5037016652343752 VIU
mined 2381 days 5 hours ago
0xa645ff5f
ERC20 Token Transfers
0.580043874622433075 XDATA
0.108380811777905359 XDATA
0.137618194087315379 XDATA
3.391051599022656847 XDATA
12.46367574817351248 XDATA
0.150812603095809986 XDATA
9.949795432512901921 XDATA
0.317409814928001276 XDATA
4.401328911113598546 XDATA
0.55406282079004574 XDATA
52.930074648967453568 XDATA
0.280662249068404293 XDATA
2056.552203831151413674 XDATA
0.423440597191739628 XDATA
15.877987082430102267 XDATA
0.857852895946818871 XDATA
1.304925038538678461 XDATA
0.25636965797600702 XDATA
21.171913013165529203 XDATA
2.632595771048694569 XDATA
0.211290122809807005 XDATA
0.793951119734511803 XDATA
0.123802274849285131 XDATA
0.177544433310352947 XDATA
0.995047010888521946 XDATA
2.116673685212208468 XDATA
2.430468438199339505 XDATA
2.705025345476264518 XDATA
0.105860149297934907 XDATA
14.645255912290132173 XDATA
4.866099956284310303 XDATA
0.211720298595869814 XDATA
1.671225225590280604 XDATA
0.762288060145405201 XDATA
0.105860149297934907 XDATA
0x7B21DE3E6808790C35A0fffddbB0B3A27a026AD4
1.207313585117541657 XDATA
0.495425498714335365 XDATA
1.818170826241334072 XDATA
1.454617941474299705 XDATA
11.834242739001647656 XDATA
0.529300746489674535 XDATA
0.148178590860978769 XDATA
0.121326213347470133 XDATA
0.105860149297934907 XDATA
6.360545868939717586 XDATA
0.266715975828840616 XDATA
0.997779887187104295 XDATA
0.10630121243417805 XDATA
2.297307227866237819 XDATA
6.10477816047014857 XDATA
1.915352124356009168 XDATA
0.320475251899438865 XDATA
0.504100595038099578 XDATA
0.105860149297934907 XDATA
0.105860149297934907 XDATA
0.21176672089471115 XDATA
0.866954575855607491 XDATA
1.587902239469023607 XDATA
0.423440597191739628 XDATA
0.11907129767107459 XDATA
1.833614976201309884 XDATA
0.539886761419468026 XDATA
0.317580447893804721 XDATA
1.127410590023006761 XDATA
231.203338276841522262 XDATA
0.105966009447232842 XDATA
1.235562214365961793 XDATA
0.211720298595869814 XDATA
0.31758044789380468 XDATA
0.37960130164779158 XDATA
0.229503632177062019 XDATA
1.910775694827725073 XDATA
3.718416411186780787 XDATA
0.959534271957096926 XDATA
0.130753512743836983 XDATA
0.417227366433846624 XDATA
19.58381194550844148 XDATA
0.874039499239700229 XDATA
0.211720298595869814 XDATA
0.135308724353008349 XDATA
0.16032493463715365 XDATA
0.318892602440578005 XDATA
0.772261085893009942 XDATA
0.69766637168101475 XDATA
0.846351893636989582 XDATA
mined 2388 days 8 hours ago
0xad8733ca
ERC20 Token Transfers
731.96875446693345956 XNN
731.95933763175544333 XNN
731.95583947925395373 XNN
731.94303089434475121 XNN
731.94303089434475121 XNN
731.93821734542693898 XNN
731.9267622995116583 XNN
731.9210719733343462 XNN
731.91961123393021716 XNN
731.90636725744612455 XNN
731.89892660733532097 XNN
731.89618968612716397 XNN
731.89057455797220728 XNN
731.88115627375448151 XNN
731.87747029644142771 XNN
731.87276625063135813 XNN
731.8676894405326301 XNN
731.84893799505657776 XNN
731.84858988002902492 XNN
731.83856464425855149 XNN
731.83822776184411659 XNN
731.83759935315918417 XNN
731.82990889133428907 XNN
731.82867822460928347 XNN
731.82337300625079421 XNN
731.82294183855487854 XNN
0x7B21DE3E6808790C35A0fffddbB0B3A27a026AD4
731.82117369215892406 XNN
731.81789156971583704 XNN
731.81654230183386624 XNN
731.81593244662731174 XNN
731.80553415048417358 XNN
731.8052805087419009 XNN
731.80105537869657315 XNN
731.80078616603315443 XNN
731.7920641500058412 XNN
731.7914106618910344 XNN
731.78767384850905282 XNN
731.77341139550855503 XNN
731.76960588035851459 XNN
731.76195905849915353 XNN
731.75885459672223325 XNN
731.75873646810974451 XNN
731.75560337520906411 XNN
731.73350118829474888 XNN
731.73124854903423605 XNN
731.73021123237634435 XNN
731.72348887930769947 XNN
731.71843690067306663 XNN
731.71522256997495168 XNN
731.71248309588685 XNN
731.71129018061416544 XNN
731.70874932119257509 XNN
731.70874932119257509 XNN
731.70874932119257509 XNN
731.70874932119257509 XNN
731.70874932119257509 XNN
731.70874932119257509 XNN
731.70874932119257509 XNN
731.70144574423718084 XNN
731.69485564686014642 XNN
731.693342673328548 XNN
731.68807662022589893 XNN
731.68638564161208551 XNN
731.68531077319350947 XNN
731.67773971828584338 XNN
731.67736310935624403 XNN
731.67587762584571457 XNN
731.66009862957601186 XNN
731.65353656893759069 XNN
731.6446976073318997 XNN
731.64369378623342283 XNN
731.63472314750850295 XNN
731.63054931748632865 XNN
731.62788115382048665 XNN
731.6235294226800515 XNN
731.61572809809816954 XNN
731.61111202489454931 XNN
731.60263706432805418 XNN
731.6010362192901867 XNN
731.60084839802590346 XNN
731.59737593244226652 XNN
731.59719140774927236 XNN
731.59402910837150892 XNN
731.59153767380550179 XNN
731.58786381249171972 XNN
731.58703580392845886 XNN
731.58469105241529125 XNN
731.58119733756778904 XNN
731.5801677388242324 XNN
731.57254564023169807 XNN
731.56692540447888858 XNN
731.56510929386642677 XNN
731.56450736460583421 XNN
731.55704500567338243 XNN
731.55375652220071488 XNN
731.55184430045959448 XNN
mined 2426 days 12 hours ago
0xad8733ca
ERC20 Token Transfers
0.860315751562265239 OMG
0.860240028295048993 OMG
0.860232483648259526 OMG
0.860156850276733209 OMG
0.860145266169019995 OMG
0.860138251273182173 OMG
0.860032564606122649 OMG
0.860017930213019531 OMG
0.860009803635399961 OMG
0.8599992794217269 OMG
0.859965884429051113 OMG
0.859908739471767276 OMG
0.859899649922758833 OMG
0.859894129936342374 OMG
0.859880473278582464 OMG
0.859852756214107358 OMG
0.859819958669262798 OMG
0.859809166392196133 OMG
0.859800060196075914 OMG
0.859773186032871262 OMG
0.859756800650231128 OMG
0.85973098372136234 OMG
0.859672231469001626 OMG
0.859653757424984933 OMG
0.859649268025276161 OMG
0.859645408194951996 OMG
0.859628499280387884 OMG
0.859619877756264434 OMG
0.859615899392596857 OMG
0.85958100378994466 OMG
0.859561287131540597 OMG
0.859557270733351086 OMG
0.859543561347182836 OMG
0.859525508021485157 OMG
0.859481567804235199 OMG
0.859476830926284416 OMG
0.859473055932603264 OMG
0.859470639892893667 OMG
0.859454430752251672 OMG
0.859432391784091976 OMG
0.859431068564555623 OMG
0.85942200381615649 OMG
0.859322403337347768 OMG
0.859322403337347768 OMG
0.859313331983860102 OMG
0.859286344638673365 OMG
0.859262204066809625 OMG
0.859144856243516144 OMG
0.859137100645183508 OMG
0.859083338383409144 OMG
0x7B21DE3E6808790C35A0fffddbB0B3A27a026AD4
0.859081184427928478 OMG
0.859070631966893807 OMG
0.859064333181886175 OMG
0.859046576513746386 OMG
0.859030902286300372 OMG
0.859022352329692279 OMG
0.859021851409813054 OMG
0.858975521970457108 OMG
0.858927634030003243 OMG
0.858913212810322411 OMG
0.85889961490707465 OMG
0.85889375638660287 OMG
0.858837435651591809 OMG
0.858835864001603358 OMG
0.858804325102972705 OMG
0.858719792956325785 OMG
0.858719792956325785 OMG
0.858719792956325785 OMG
0.858719792956325785 OMG
0.858719792956325785 OMG
0.858719792956325785 OMG
0.858719792956325785 OMG
0.858653355161818413 OMG
0.858644466658698037 OMG
0.858611880502344273 OMG
0.858586958872745093 OMG
0.858563447199495584 OMG
0.858542361109000726 OMG
0.858528876948462306 OMG
0.858522258335555743 OMG
0.858510733856415686 OMG
0.858504464026934033 OMG
0.858486281433679767 OMG
0.858481329708852689 OMG
0.858434607593507132 OMG
0.85842730094263724 OMG
0.858408124373787168 OMG
0.858406119187744317 OMG
0.858406048381024547 OMG
mined 2521 days 22 hours ago
Transfer
mined 2524 days 16 hours ago
Transfer
mined 2527 days 13 hours ago
Transfer
mined 2528 days 15 hours ago
Transfer