Country stats for last year of data

For these country-level stats, the most recent test from each client address is examined within aggregated IP blocks (/24 for IPv4 and /40 for IPv6). If the most recent test in an IP block shows spoofing, the IP block is considered to allow spoofing. If ALL clients indicate blocking, the IP block is considered to block spoofing. (It is considered NAT blocking if there are no non-NAT tests found.) If some clients showed spoofing but the most recent tests show blocking (and there's no evidence of a change in blocking policy), then the IP block is considered "inconsistent". On the map, inconsistent results are counted as spoofing for simplicity.

Country	Client IP blocks	Spoofing IP blocks	Blocking IP blocks		Inconsistent IP blocks	Client ASNs	Spoofing ASNs
			Non-NAT	NAT
bra (Brazil)	2554	377 (14.8%)	513 (20.1%)	1645 (64.4%)	19 (0.7%)	597	228 (38.2%)
egy (Egypt)	333	98 (29.4%)	0 (0.0%)	235 (70.6%)	0 (0.0%)	5	1 (20.0%)
usa (United States)	1637	95 (5.8%)	478 (29.2%)	1060 (64.8%)	4 (0.2%)	308	63 (20.5%)
tun (Tunisia)	79	61 (77.2%)	0 (0.0%)	18 (22.8%)	0 (0.0%)	4	3 (75.0%)
ind (India)	436	53 (12.2%)	39 (8.9%)	343 (78.7%)	1 (0.2%)	40	12 (30.0%)
nld (Netherlands)	444	33 (7.4%)	109 (24.5%)	302 (68.0%)	0 (0.0%)	84	19 (22.6%)
rus (Russian Federation)	573	28 (4.9%)	40 (7.0%)	505 (88.1%)	0 (0.0%)	125	18 (14.4%)
chl (Chile)	171	27 (15.8%)	12 (7.0%)	132 (77.2%)	0 (0.0%)	18	2 (11.1%)
jpn (Japan)	224	22 (9.8%)	45 (20.1%)	157 (70.1%)	0 (0.0%)	42	15 (35.7%)
tur (Turkey)	582	22 (3.8%)	41 (7.0%)	518 (89.0%)	1 (0.2%)	59	14 (23.7%)
grc (Greece)	117	19 (16.2%)	7 (6.0%)	91 (77.8%)	0 (0.0%)	7	1 (14.3%)
zaf (South Africa)	153	19 (12.4%)	6 (3.9%)	128 (83.7%)	0 (0.0%)	33	12 (36.4%)
aus (Australia)	172	18 (10.5%)	36 (20.9%)	118 (68.6%)	0 (0.0%)	46	13 (28.3%)
idn (Indonesia)	36	18 (50.0%)	5 (13.9%)	13 (36.1%)	0 (0.0%)	22	10 (45.5%)
rou (Romania)	105	18 (17.1%)	29 (27.6%)	58 (55.2%)	0 (0.0%)	16	3 (18.8%)
vnm (Vietnam)	76	18 (23.7%)	14 (18.4%)	43 (56.6%)	1 (1.3%)	12	4 (33.3%)
chn (China)	291	16 (5.5%)	54 (18.6%)	221 (75.9%)	0 (0.0%)	29	4 (13.8%)
gbr (United Kingdom)	331	15 (4.5%)	71 (21.5%)	242 (73.1%)	3 (0.9%)	81	14 (17.3%)
ven (Venezuela)	108	15 (13.9%)	10 (9.3%)	80 (74.1%)	3 (2.8%)	13	3 (23.1%)
ken (Kenya)	73	14 (19.2%)	5 (6.8%)	54 (74.0%)	0 (0.0%)	22	8 (36.4%)
mwi (Malawi)	54	14 (25.9%)	1 (1.9%)	38 (70.4%)	1 (1.9%)	9	3 (33.3%)
can (Canada)	170	13 (7.6%)	38 (22.4%)	119 (70.0%)	0 (0.0%)	37	7 (18.9%)
npl (Nepal)	67	13 (19.4%)	9 (13.4%)	43 (64.2%)	2 (3.0%)	12	7 (58.3%)
ecu (Ecuador)	68	12 (17.6%)	10 (14.7%)	46 (67.6%)	0 (0.0%)	16	8 (50.0%)
deu (Germany)	505	11 (2.2%)	120 (23.8%)	373 (73.9%)	1 (0.2%)	78	10 (12.8%)
hkg (Hong Kong)	60	10 (16.7%)	18 (30.0%)	31 (51.7%)	1 (1.7%)	24	8 (33.3%)
phl (Philippines)	136	10 (7.4%)	20 (14.7%)	106 (77.9%)	0 (0.0%)	25	6 (24.0%)
ita (Italy)	154	9 (5.8%)	19 (12.3%)	125 (81.2%)	1 (0.6%)	30	6 (20.0%)
tha (Thailand)	221	9 (4.1%)	8 (3.6%)	203 (91.9%)	1 (0.5%)	16	7 (43.8%)
twn (Taiwan)	105	9 (8.6%)	10 (9.5%)	86 (81.9%)	0 (0.0%)	12	3 (25.0%)
ukr (Ukraine)	111	9 (8.1%)	22 (19.8%)	80 (72.1%)	0 (0.0%)	45	9 (20.0%)
mus (Mauritius)	34	8 (23.5%)	2 (5.9%)	24 (70.6%)	0 (0.0%)	18	7 (38.9%)
arg (Argentina)	77	7 (9.1%)	10 (13.0%)	60 (77.9%)	0 (0.0%)	24	5 (20.8%)
dnk (Denmark)	28	7 (25.0%)	8 (28.6%)	13 (46.4%)	0 (0.0%)	10	4 (40.0%)
jor (Jordan)	14	7 (50.0%)	0 (0.0%)	7 (50.0%)	0 (0.0%)	2	1 (50.0%)
mex (Mexico)	227	7 (3.1%)	22 (9.7%)	197 (86.8%)	1 (0.4%)	32	4 (12.5%)
col (Colombia)	65	6 (9.2%)	2 (3.1%)	57 (87.7%)	0 (0.0%)	14	4 (28.6%)
irn (Iran)	245	6 (2.4%)	61 (24.9%)	178 (72.7%)	0 (0.0%)	49	6 (12.2%)
isr (Israel)	39	6 (15.4%)	5 (12.8%)	28 (71.8%)	0 (0.0%)	10	4 (40.0%)
pol (Poland)	180	6 (3.3%)	12 (6.7%)	162 (90.0%)	0 (0.0%)	28	1 (3.6%)
ury (Uruguay)	55	6 (10.9%)	10 (18.2%)	39 (70.9%)	0 (0.0%)	7	3 (42.9%)
esp (Spain)	94	5 (5.3%)	12 (12.8%)	77 (81.9%)	0 (0.0%)	27	5 (18.5%)
pry (Paraguay)	36	5 (13.9%)	6 (16.7%)	25 (69.4%)	0 (0.0%)	9	3 (33.3%)
are (United Arab Emirates)	45	4 (8.9%)	3 (6.7%)	37 (82.2%)	1 (2.2%)	6	3 (50.0%)
bel (Belgium)	33	4 (12.1%)	8 (24.2%)	21 (63.6%)	0 (0.0%)	16	4 (25.0%)
bol (Bolivia)	74	4 (5.4%)	4 (5.4%)	66 (89.2%)	0 (0.0%)	4	2 (50.0%)
cze (Czech Republic)	24	4 (16.7%)	5 (20.8%)	15 (62.5%)	0 (0.0%)	16	3 (18.8%)
swe (Sweden)	56	4 (7.1%)	15 (26.8%)	37 (66.1%)	0 (0.0%)	19	3 (15.8%)
sau (Saudi Arabia)	178	3 (1.7%)	20 (11.2%)	155 (87.1%)	0 (0.0%)	8	3 (37.5%)
srb (Serbia)	135	3 (2.2%)	1 (0.7%)	131 (97.0%)	0 (0.0%)	11	3 (27.3%)
arm (Armenia)	19	2 (10.5%)	0 (0.0%)	17 (89.5%)	0 (0.0%)	7	2 (28.6%)
bgd (Bangladesh)	31	2 (6.5%)	1 (3.2%)	28 (90.3%)	0 (0.0%)	20	2 (10.0%)
bhr (Bahrain)	22	2 (9.1%)	3 (13.6%)	17 (77.3%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	53	2 (3.8%)	1 (1.9%)	50 (94.3%)	0 (0.0%)	7	1 (14.3%)
btn (Bhutan)	7	2 (28.6%)	2 (28.6%)	3 (42.9%)	0 (0.0%)	2	1 (50.0%)
cri (Costa Rica)	11	2 (18.2%)	1 (9.1%)	8 (72.7%)	0 (0.0%)	8	2 (25.0%)
imn (Isle of Man)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2	2 (100.0%)
lbn (Lebanon)	14	2 (14.3%)	2 (14.3%)	10 (71.4%)	0 (0.0%)	7	2 (28.6%)
mda (Moldova, Republic of)	7	2 (28.6%)	3 (42.9%)	2 (28.6%)	0 (0.0%)	4	1 (25.0%)
pak (Pakistan)	38	2 (5.3%)	6 (15.8%)	30 (78.9%)	0 (0.0%)	12	2 (16.7%)
pan (Panama)	43	2 (4.7%)	7 (16.3%)	34 (79.1%)	0 (0.0%)	7	1 (14.3%)
sgp (Singapore)	37	2 (5.4%)	11 (29.7%)	24 (64.9%)	0 (0.0%)	14	1 (7.1%)
uzb (Uzbekistan)	7	2 (28.6%)	1 (14.3%)	4 (57.1%)	0 (0.0%)	4	1 (25.0%)
abw (Aruba)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
alb (Albania)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
aut (Austria)	68	1 (1.5%)	11 (16.2%)	56 (82.4%)	0 (0.0%)	16	1 (6.3%)
blz (Belize)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	1	1 (100.0%)
che (Switzerland)	73	1 (1.4%)	11 (15.1%)	61 (83.6%)	0 (0.0%)	19	1 (5.3%)
cok (Cook Islands)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	1	1 (100.0%)
cpv (Cape Verde)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	1	1 (100.0%)
dji (Djibouti)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
dza (Algeria)	37	1 (2.7%)	0 (0.0%)	36 (97.3%)	0 (0.0%)	2	1 (50.0%)
hun (Hungary)	18	1 (5.6%)	9 (50.0%)	8 (44.4%)	0 (0.0%)	7	1 (14.3%)
kaz (Kazakhstan)	57	1 (1.8%)	2 (3.5%)	54 (94.7%)	0 (0.0%)	11	1 (9.1%)
kor (South Korea)	69	1 (1.4%)	39 (56.5%)	29 (42.0%)	0 (0.0%)	7	1 (14.3%)
mdv (Maldives)	9	1 (11.1%)	0 (0.0%)	8 (88.9%)	0 (0.0%)	3	1 (33.3%)
mmr (Myanmar)	18	1 (5.6%)	0 (0.0%)	17 (94.4%)	0 (0.0%)	10	1 (10.0%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	11	1 (9.1%)	4 (36.4%)	6 (54.5%)	0 (0.0%)	4	1 (25.0%)
nor (Norway)	32	1 (3.1%)	4 (12.5%)	27 (84.4%)	0 (0.0%)	10	1 (10.0%)
nzl (New Zealand)	23	1 (4.3%)	5 (21.7%)	16 (69.6%)	1 (4.3%)	10	2 (20.0%)
pri (Puerto Rico)	8	1 (12.5%)	2 (25.0%)	5 (62.5%)	0 (0.0%)	2	1 (50.0%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
zmb (Zambia)	4	1 (25.0%)	0 (0.0%)	3 (75.0%)	0 (0.0%)	3	1 (33.3%)
ago (Angola)	79	0 (0.0%)	0 (0.0%)	79 (100.0%)	0 (0.0%)	7	0 (0.0%)
and (Andorra, Principality of)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
aze (Azerbaijan)	30	0 (0.0%)	0 (0.0%)	30 (100.0%)	0 (0.0%)	2	0 (0.0%)
bgr (Bulgaria)	32	0 (0.0%)	12 (37.5%)	20 (62.5%)	0 (0.0%)	21	0 (0.0%)
bih (Bosnia and Herzegovina)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
civ (Ivory Coast (Cote D'Ivoire))	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	1	0 (0.0%)
cmr (Cameroon)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
cub (Cuba)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
cyp (Cyprus)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
dom (Dominican Republic)	5	0 (0.0%)	1 (20.0%)	4 (80.0%)	0 (0.0%)	2	0 (0.0%)
est (Estonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
eth (Ethiopia)	16	0 (0.0%)	0 (0.0%)	16 (100.0%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	19	0 (0.0%)	7 (36.8%)	12 (63.2%)	0 (0.0%)	7	0 (0.0%)
fji (Fiji)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
fra (France)	109	0 (0.0%)	27 (24.8%)	82 (75.2%)	0 (0.0%)	18	0 (0.0%)
geo (Georgia)	11	0 (0.0%)	0 (0.0%)	11 (100.0%)	0 (0.0%)	3	0 (0.0%)
gha (Ghana)	38	0 (0.0%)	0 (0.0%)	38 (100.0%)	0 (0.0%)	4	0 (0.0%)
gtm (Guatemala)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
irl (Ireland)	42	0 (0.0%)	12 (28.6%)	30 (71.4%)	0 (0.0%)	17	0 (0.0%)
irq (Iraq)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	6	0 (0.0%)
isl (Iceland)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
kgz (Kyrgyz Republic (Kyrgyzstan))	9	0 (0.0%)	0 (0.0%)	9 (100.0%)	0 (0.0%)	3	0 (0.0%)
khm (Cambodia, Kingdom of)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
kwt (Kuwait)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
lbr (Liberia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
lby (Libya)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
lie (Liechtenstein)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
lka (Sri Lanka)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
ltu (Lithuania)	19	0 (0.0%)	2 (10.5%)	17 (89.5%)	0 (0.0%)	5	0 (0.0%)
lux (Luxembourg)	8	0 (0.0%)	6 (75.0%)	2 (25.0%)	0 (0.0%)	3	0 (0.0%)
lva (Latvia)	6	0 (0.0%)	3 (50.0%)	3 (50.0%)	0 (0.0%)	4	0 (0.0%)
mar (Morocco)	40	0 (0.0%)	0 (0.0%)	40 (100.0%)	0 (0.0%)	2	0 (0.0%)
mkd (Macedonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
moz (Mozambique)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
nam (Namibia)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	27	0 (0.0%)	4 (14.8%)	23 (85.2%)	0 (0.0%)	5	0 (0.0%)
nic (Nicaragua)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
omn (Oman)	19	0 (0.0%)	1 (5.3%)	18 (94.7%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	15	0 (0.0%)	5 (33.3%)	10 (66.7%)	0 (0.0%)	6	0 (0.0%)
prt (Portugal)	82	0 (0.0%)	16 (19.5%)	66 (80.5%)	0 (0.0%)	8	0 (0.0%)
pse (Palestinian Territory, Occupied)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	1	0 (0.0%)
pyf (Polynesia [French])	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
qat (Qatar)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
reu (Reunion [French])	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
rwa (Rwanda)	5	0 (0.0%)	3 (60.0%)	2 (40.0%)	0 (0.0%)	2	0 (0.0%)
slv (El Salvador)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
som (Somalia)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	0 (0.0%)
svk (Slovak Republic)	7	0 (0.0%)	1 (14.3%)	6 (85.7%)	0 (0.0%)	5	0 (0.0%)
svn (Slovenia)	11	0 (0.0%)	1 (9.1%)	10 (90.9%)	0 (0.0%)	5	0 (0.0%)
syr (Syria)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	8	0 (0.0%)	5 (62.5%)	3 (37.5%)	0 (0.0%)	3	0 (0.0%)
tkm (Turkmenistan)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
uga (Uganda)	23	0 (0.0%)	4 (17.4%)	19 (82.6%)	0 (0.0%)	6	0 (0.0%)
vgb (British Virgin Islands)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)