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)	1587	367 (23.1%)	318 (20.0%)	884 (55.7%)	18 (1.1%)	408	195 (47.8%)
ind (India)	491	162 (33.0%)	59 (12.0%)	270 (55.0%)	0 (0.0%)	40	13 (32.5%)
usa (United States)	1867	109 (5.8%)	530 (28.4%)	1227 (65.7%)	1 (0.1%)	324	74 (22.8%)
egy (Egypt)	55	34 (61.8%)	0 (0.0%)	21 (38.2%)	0 (0.0%)	5	2 (40.0%)
tha (Thailand)	90	33 (36.7%)	6 (6.7%)	51 (56.7%)	0 (0.0%)	14	9 (64.3%)
nld (Netherlands)	325	30 (9.2%)	81 (24.9%)	214 (65.8%)	0 (0.0%)	65	14 (21.5%)
idn (Indonesia)	55	21 (38.2%)	9 (16.4%)	25 (45.5%)	0 (0.0%)	16	5 (31.3%)
can (Canada)	226	19 (8.4%)	40 (17.7%)	167 (73.9%)	0 (0.0%)	52	11 (21.2%)
rou (Romania)	81	19 (23.5%)	14 (17.3%)	47 (58.0%)	1 (1.2%)	8	2 (25.0%)
zaf (South Africa)	153	17 (11.1%)	13 (8.5%)	122 (79.7%)	1 (0.7%)	31	9 (29.0%)
arg (Argentina)	138	15 (10.9%)	9 (6.5%)	114 (82.6%)	0 (0.0%)	19	5 (26.3%)
hkg (Hong Kong)	41	15 (36.6%)	14 (34.1%)	12 (29.3%)	0 (0.0%)	22	6 (27.3%)
twn (Taiwan)	81	15 (18.5%)	8 (9.9%)	58 (71.6%)	0 (0.0%)	12	3 (25.0%)
rus (Russian Federation)	114	14 (12.3%)	49 (43.0%)	51 (44.7%)	0 (0.0%)	51	8 (15.7%)
chl (Chile)	179	13 (7.3%)	10 (5.6%)	156 (87.2%)	0 (0.0%)	19	6 (31.6%)
ita (Italy)	264	13 (4.9%)	29 (11.0%)	222 (84.1%)	0 (0.0%)	36	9 (25.0%)
deu (Germany)	578	12 (2.1%)	149 (25.8%)	417 (72.1%)	0 (0.0%)	72	7 (9.7%)
ken (Kenya)	49	11 (22.4%)	1 (2.0%)	37 (75.5%)	0 (0.0%)	13	5 (38.5%)
npl (Nepal)	27	9 (33.3%)	7 (25.9%)	11 (40.7%)	0 (0.0%)	6	3 (50.0%)
pak (Pakistan)	52	9 (17.3%)	5 (9.6%)	38 (73.1%)	0 (0.0%)	10	4 (40.0%)
bgd (Bangladesh)	11	8 (72.7%)	1 (9.1%)	2 (18.2%)	0 (0.0%)	9	6 (66.7%)
pry (Paraguay)	15	8 (53.3%)	1 (6.7%)	6 (40.0%)	0 (0.0%)	6	5 (83.3%)
col (Colombia)	34	7 (20.6%)	5 (14.7%)	22 (64.7%)	0 (0.0%)	15	6 (40.0%)
bgr (Bulgaria)	34	6 (17.6%)	5 (14.7%)	23 (67.6%)	0 (0.0%)	14	4 (28.6%)
gbr (United Kingdom)	257	6 (2.3%)	51 (19.8%)	200 (77.8%)	0 (0.0%)	61	3 (4.9%)
jpn (Japan)	121	6 (5.0%)	33 (27.3%)	82 (67.8%)	0 (0.0%)	35	6 (17.1%)
svk (Slovak Republic)	15	6 (40.0%)	2 (13.3%)	7 (46.7%)	0 (0.0%)	9	4 (44.4%)
uga (Uganda)	20	6 (30.0%)	0 (0.0%)	14 (70.0%)	0 (0.0%)	10	4 (40.0%)
ven (Venezuela)	104	6 (5.8%)	66 (63.5%)	32 (30.8%)	0 (0.0%)	4	1 (25.0%)
aus (Australia)	290	5 (1.7%)	37 (12.8%)	247 (85.2%)	1 (0.3%)	31	4 (12.9%)
fra (France)	126	5 (4.0%)	29 (23.0%)	92 (73.0%)	0 (0.0%)	24	4 (16.7%)
isr (Israel)	20	5 (25.0%)	2 (10.0%)	13 (65.0%)	0 (0.0%)	6	2 (33.3%)
mdv (Maldives)	13	5 (38.5%)	2 (15.4%)	6 (46.2%)	0 (0.0%)	5	2 (40.0%)
vnm (Vietnam)	66	5 (7.6%)	10 (15.2%)	50 (75.8%)	1 (1.5%)	13	5 (38.5%)
chn (China)	177	4 (2.3%)	23 (13.0%)	149 (84.2%)	1 (0.6%)	25	5 (20.0%)
esp (Spain)	105	4 (3.8%)	16 (15.2%)	85 (81.0%)	0 (0.0%)	21	4 (19.0%)
hnd (Honduras)	7	4 (57.1%)	0 (0.0%)	3 (42.9%)	0 (0.0%)	5	2 (40.0%)
mda (Moldova, Republic of)	16	4 (25.0%)	6 (37.5%)	6 (37.5%)	0 (0.0%)	6	2 (33.3%)
phl (Philippines)	51	4 (7.8%)	9 (17.6%)	37 (72.5%)	1 (2.0%)	11	4 (36.4%)
swe (Sweden)	30	4 (13.3%)	4 (13.3%)	22 (73.3%)	0 (0.0%)	15	2 (13.3%)
ury (Uruguay)	84	4 (4.8%)	7 (8.3%)	73 (86.9%)	0 (0.0%)	6	3 (50.0%)
are (United Arab Emirates)	59	3 (5.1%)	3 (5.1%)	53 (89.8%)	0 (0.0%)	5	2 (40.0%)
che (Switzerland)	57	3 (5.3%)	30 (52.6%)	24 (42.1%)	0 (0.0%)	21	3 (14.3%)
cze (Czech Republic)	53	3 (5.7%)	5 (9.4%)	45 (84.9%)	0 (0.0%)	21	2 (9.5%)
mex (Mexico)	90	3 (3.3%)	13 (14.4%)	74 (82.2%)	0 (0.0%)	19	2 (10.5%)
pan (Panama)	55	3 (5.5%)	4 (7.3%)	48 (87.3%)	0 (0.0%)	5	1 (20.0%)
pol (Poland)	155	3 (1.9%)	11 (7.1%)	141 (91.0%)	0 (0.0%)	31	3 (9.7%)
ukr (Ukraine)	32	3 (9.4%)	19 (59.4%)	10 (31.3%)	0 (0.0%)	20	3 (15.0%)
ago (Angola)	54	2 (3.7%)	2 (3.7%)	50 (92.6%)	0 (0.0%)	3	1 (33.3%)
bhr (Bahrain)	51	2 (3.9%)	2 (3.9%)	47 (92.2%)	0 (0.0%)	4	2 (50.0%)
cmr (Cameroon)	11	2 (18.2%)	0 (0.0%)	9 (81.8%)	0 (0.0%)	5	2 (40.0%)
cri (Costa Rica)	10	2 (20.0%)	0 (0.0%)	8 (80.0%)	0 (0.0%)	5	2 (40.0%)
dnk (Denmark)	21	2 (9.5%)	4 (19.0%)	15 (71.4%)	0 (0.0%)	10	1 (10.0%)
ecu (Ecuador)	3	2 (66.7%)	0 (0.0%)	1 (33.3%)	0 (0.0%)	3	2 (66.7%)
geo (Georgia)	9	2 (22.2%)	2 (22.2%)	5 (55.6%)	0 (0.0%)	5	1 (20.0%)
kaz (Kazakhstan)	42	2 (4.8%)	1 (2.4%)	39 (92.9%)	0 (0.0%)	9	2 (22.2%)
nor (Norway)	48	2 (4.2%)	17 (35.4%)	29 (60.4%)	0 (0.0%)	12	2 (16.7%)
sgp (Singapore)	74	2 (2.7%)	27 (36.5%)	45 (60.8%)	0 (0.0%)	22	2 (9.1%)
bih (Bosnia and Herzegovina)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
bol (Bolivia)	56	1 (1.8%)	4 (7.1%)	50 (89.3%)	1 (1.8%)	7	2 (28.6%)
bwa (Botswana)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
civ (Ivory Coast (Cote D'Ivoire))	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
dom (Dominican Republic)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
eth (Ethiopia)	6	1 (16.7%)	0 (0.0%)	5 (83.3%)	0 (0.0%)	1	1 (100.0%)
gab (Gabon)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	1	1 (100.0%)
gtm (Guatemala)	8	1 (12.5%)	1 (12.5%)	6 (75.0%)	0 (0.0%)	5	1 (20.0%)
hun (Hungary)	26	1 (3.8%)	9 (34.6%)	16 (61.5%)	0 (0.0%)	8	1 (12.5%)
irl (Ireland)	44	1 (2.3%)	8 (18.2%)	35 (79.5%)	0 (0.0%)	14	1 (7.1%)
khm (Cambodia, Kingdom of)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
kor (South Korea)	60	1 (1.7%)	34 (56.7%)	25 (41.7%)	0 (0.0%)	9	1 (11.1%)
kwt (Kuwait)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
lka (Sri Lanka)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
maf (Saint Martin)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
mkd (Macedonia)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
mwi (Malawi)	17	1 (5.9%)	6 (35.3%)	10 (58.8%)	0 (0.0%)	4	1 (25.0%)
mys (Malaysia)	56	1 (1.8%)	9 (16.1%)	46 (82.1%)	0 (0.0%)	8	1 (12.5%)
nam (Namibia)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
rwa (Rwanda)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
slv (El Salvador)	6	1 (16.7%)	0 (0.0%)	5 (83.3%)	0 (0.0%)	4	1 (25.0%)
som (Somalia)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
srb (Serbia)	35	1 (2.9%)	2 (5.7%)	32 (91.4%)	0 (0.0%)	12	1 (8.3%)
tun (Tunisia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
tur (Turkey)	135	1 (0.7%)	19 (14.1%)	115 (85.2%)	0 (0.0%)	30	1 (3.3%)
uzb (Uzbekistan)	6	1 (16.7%)	0 (0.0%)	5 (83.3%)	0 (0.0%)	2	1 (50.0%)
alb (Albania)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	71	0 (0.0%)	9 (12.7%)	62 (87.3%)	0 (0.0%)	14	0 (0.0%)
aze (Azerbaijan)	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	0 (0.0%)	2	0 (0.0%)
bel (Belgium)	31	0 (0.0%)	12 (38.7%)	19 (61.3%)	0 (0.0%)	5	0 (0.0%)
blr (Belarus)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
blz (Belize)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
brn (Brunei Darussalam)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
cod (Congo, The Democratic Republic of the)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
cyp (Cyprus)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
dza (Algeria)	8	0 (0.0%)	0 (0.0%)	8 (100.0%)	0 (0.0%)	1	0 (0.0%)
est (Estonia)	12	0 (0.0%)	4 (33.3%)	8 (66.7%)	0 (0.0%)	4	0 (0.0%)
fin (Finland)	20	0 (0.0%)	10 (50.0%)	10 (50.0%)	0 (0.0%)	6	0 (0.0%)
fji (Fiji)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	4	0 (0.0%)
gha (Ghana)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
gin (Guinea)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	3	0 (0.0%)
grc (Greece)	72	0 (0.0%)	9 (12.5%)	63 (87.5%)	0 (0.0%)	7	0 (0.0%)
hrv (Croatia)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	7	0 (0.0%)
irn (Iran)	50	0 (0.0%)	2 (4.0%)	48 (96.0%)	0 (0.0%)	10	0 (0.0%)
irq (Iraq)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
isl (Iceland)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
lie (Liechtenstein)	3	0 (0.0%)	2 (66.7%)	1 (33.3%)	0 (0.0%)	3	0 (0.0%)
ltu (Lithuania)	22	0 (0.0%)	7 (31.8%)	15 (68.2%)	0 (0.0%)	9	0 (0.0%)
lux (Luxembourg)	4	0 (0.0%)	2 (50.0%)	2 (50.0%)	0 (0.0%)	2	0 (0.0%)
lva (Latvia)	9	0 (0.0%)	4 (44.4%)	4 (44.4%)	1 (11.1%)	6	1 (16.7%)
mac (Macau)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
mar (Morocco)	42	0 (0.0%)	2 (4.8%)	40 (95.2%)	0 (0.0%)	5	0 (0.0%)
mlt (Malta)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
mmr (Myanmar)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	4	0 (0.0%)
mng (Mongolia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
mrt (Mauritania)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
mus (Mauritius)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
myt (Mayotte)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	3	0 (0.0%)	2 (66.7%)	1 (33.3%)	0 (0.0%)	2	0 (0.0%)
nzl (New Zealand)	69	0 (0.0%)	19 (27.5%)	50 (72.5%)	0 (0.0%)	8	0 (0.0%)
omn (Oman)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
prt (Portugal)	41	0 (0.0%)	13 (31.7%)	28 (68.3%)	0 (0.0%)	7	0 (0.0%)
pse (Palestinian Territory, Occupied)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	1	0 (0.0%)
reu (Reunion [French])	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	2	0 (0.0%)
sau (Saudi Arabia)	429	0 (0.0%)	14 (3.3%)	415 (96.7%)	0 (0.0%)	5	0 (0.0%)
sdn (Sudan)	8	0 (0.0%)	2 (25.0%)	6 (75.0%)	0 (0.0%)	3	0 (0.0%)
sen (Senegal)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
svn (Slovenia)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	4	0 (0.0%)
syr (Syria)	13	0 (0.0%)	0 (0.0%)	13 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	8	0 (0.0%)	3 (37.5%)	5 (62.5%)	0 (0.0%)	2	0 (0.0%)
tto (Trinidad and Tobago)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	2	0 (0.0%)
yem (Yemen)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
zmb (Zambia)	6	0 (0.0%)	2 (33.3%)	4 (66.7%)	0 (0.0%)	4	0 (0.0%)
zwe (Zimbabwe)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)