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)	2523	366 (14.5%)	504 (20.0%)	1631 (64.6%)	22 (0.9%)	587	224 (38.2%)
usa (United States)	1656	93 (5.6%)	492 (29.7%)	1068 (64.5%)	3 (0.2%)	323	61 (18.9%)
egy (Egypt)	305	91 (29.8%)	0 (0.0%)	214 (70.2%)	0 (0.0%)	5	1 (20.0%)
ind (India)	452	61 (13.5%)	41 (9.1%)	349 (77.2%)	1 (0.2%)	42	12 (28.6%)
tun (Tunisia)	78	61 (78.2%)	0 (0.0%)	17 (21.8%)	0 (0.0%)	4	3 (75.0%)
rus (Russian Federation)	632	33 (5.2%)	48 (7.6%)	551 (87.2%)	0 (0.0%)	136	21 (15.4%)
nld (Netherlands)	424	32 (7.5%)	112 (26.4%)	279 (65.8%)	1 (0.2%)	87	20 (23.0%)
tur (Turkey)	597	25 (4.2%)	52 (8.7%)	519 (86.9%)	1 (0.2%)	62	15 (24.2%)
chl (Chile)	156	22 (14.1%)	13 (8.3%)	121 (77.6%)	0 (0.0%)	17	2 (11.8%)
grc (Greece)	119	20 (16.8%)	8 (6.7%)	91 (76.5%)	0 (0.0%)	7	1 (14.3%)
jpn (Japan)	236	20 (8.5%)	48 (20.3%)	168 (71.2%)	0 (0.0%)	42	12 (28.6%)
zaf (South Africa)	149	19 (12.8%)	7 (4.7%)	123 (82.6%)	0 (0.0%)	30	11 (36.7%)
aus (Australia)	176	18 (10.2%)	41 (23.3%)	117 (66.5%)	0 (0.0%)	49	13 (26.5%)
vnm (Vietnam)	76	18 (23.7%)	13 (17.1%)	44 (57.9%)	1 (1.3%)	13	5 (38.5%)
chn (China)	295	17 (5.8%)	56 (19.0%)	222 (75.3%)	0 (0.0%)	34	5 (14.7%)
ken (Kenya)	74	16 (21.6%)	5 (6.8%)	53 (71.6%)	0 (0.0%)	22	10 (45.5%)
npl (Nepal)	69	16 (23.2%)	9 (13.0%)	42 (60.9%)	2 (2.9%)	15	8 (53.3%)
deu (Germany)	538	15 (2.8%)	150 (27.9%)	371 (69.0%)	2 (0.4%)	85	12 (14.1%)
gbr (United Kingdom)	308	15 (4.9%)	73 (23.7%)	218 (70.8%)	2 (0.6%)	86	14 (16.3%)
mwi (Malawi)	56	15 (26.8%)	1 (1.8%)	39 (69.6%)	1 (1.8%)	9	3 (33.3%)
idn (Indonesia)	34	14 (41.2%)	6 (17.6%)	14 (41.2%)	0 (0.0%)	20	7 (35.0%)
hkg (Hong Kong)	62	13 (21.0%)	17 (27.4%)	31 (50.0%)	1 (1.6%)	22	10 (45.5%)
rou (Romania)	110	12 (10.9%)	34 (30.9%)	64 (58.2%)	0 (0.0%)	19	3 (15.8%)
ecu (Ecuador)	74	11 (14.9%)	9 (12.2%)	53 (71.6%)	1 (1.4%)	18	8 (44.4%)
can (Canada)	171	10 (5.8%)	40 (23.4%)	121 (70.8%)	0 (0.0%)	34	5 (14.7%)
irn (Iran)	202	10 (5.0%)	58 (28.7%)	134 (66.3%)	0 (0.0%)	51	9 (17.6%)
tha (Thailand)	214	10 (4.7%)	8 (3.7%)	196 (91.6%)	0 (0.0%)	17	7 (41.2%)
twn (Taiwan)	105	10 (9.5%)	10 (9.5%)	85 (81.0%)	0 (0.0%)	12	3 (25.0%)
ukr (Ukraine)	126	10 (7.9%)	25 (19.8%)	91 (72.2%)	0 (0.0%)	46	10 (21.7%)
ven (Venezuela)	106	10 (9.4%)	15 (14.2%)	79 (74.5%)	2 (1.9%)	12	3 (25.0%)
col (Colombia)	66	9 (13.6%)	1 (1.5%)	56 (84.8%)	0 (0.0%)	15	5 (33.3%)
ita (Italy)	154	9 (5.8%)	21 (13.6%)	123 (79.9%)	1 (0.6%)	29	6 (20.7%)
mus (Mauritius)	38	9 (23.7%)	2 (5.3%)	27 (71.1%)	0 (0.0%)	21	8 (38.1%)
phl (Philippines)	152	8 (5.3%)	22 (14.5%)	122 (80.3%)	0 (0.0%)	27	6 (22.2%)
arg (Argentina)	72	7 (9.7%)	9 (12.5%)	56 (77.8%)	0 (0.0%)	22	5 (22.7%)
jor (Jordan)	14	7 (50.0%)	0 (0.0%)	7 (50.0%)	0 (0.0%)	2	1 (50.0%)
dnk (Denmark)	22	6 (27.3%)	7 (31.8%)	9 (40.9%)	0 (0.0%)	8	4 (50.0%)
esp (Spain)	100	6 (6.0%)	17 (17.0%)	77 (77.0%)	0 (0.0%)	29	6 (20.7%)
pol (Poland)	192	6 (3.1%)	13 (6.8%)	173 (90.1%)	0 (0.0%)	29	1 (3.4%)
bel (Belgium)	37	5 (13.5%)	11 (29.7%)	21 (56.8%)	0 (0.0%)	20	4 (20.0%)
isr (Israel)	40	5 (12.5%)	4 (10.0%)	31 (77.5%)	0 (0.0%)	10	3 (30.0%)
mex (Mexico)	224	5 (2.2%)	20 (8.9%)	198 (88.4%)	1 (0.4%)	32	4 (12.5%)
are (United Arab Emirates)	57	4 (7.0%)	6 (10.5%)	46 (80.7%)	1 (1.8%)	7	3 (42.9%)
bol (Bolivia)	75	4 (5.3%)	4 (5.3%)	67 (89.3%)	0 (0.0%)	4	2 (50.0%)
cze (Czech Republic)	26	4 (15.4%)	5 (19.2%)	17 (65.4%)	0 (0.0%)	18	3 (16.7%)
pan (Panama)	45	4 (8.9%)	7 (15.6%)	34 (75.6%)	0 (0.0%)	7	2 (28.6%)
pry (Paraguay)	34	4 (11.8%)	5 (14.7%)	25 (73.5%)	0 (0.0%)	8	3 (37.5%)
swe (Sweden)	59	4 (6.8%)	15 (25.4%)	40 (67.8%)	0 (0.0%)	18	3 (16.7%)
che (Switzerland)	77	3 (3.9%)	12 (15.6%)	62 (80.5%)	0 (0.0%)	21	2 (9.5%)
mda (Moldova, Republic of)	8	3 (37.5%)	3 (37.5%)	2 (25.0%)	0 (0.0%)	5	2 (40.0%)
sau (Saudi Arabia)	187	3 (1.6%)	20 (10.7%)	164 (87.7%)	0 (0.0%)	11	3 (27.3%)
srb (Serbia)	143	3 (2.1%)	1 (0.7%)	139 (97.2%)	0 (0.0%)	11	3 (27.3%)
ury (Uruguay)	55	3 (5.5%)	14 (25.5%)	38 (69.1%)	0 (0.0%)	7	2 (28.6%)
uzb (Uzbekistan)	13	3 (23.1%)	1 (7.7%)	9 (69.2%)	0 (0.0%)	6	1 (16.7%)
ago (Angola)	77	2 (2.6%)	0 (0.0%)	75 (97.4%)	0 (0.0%)	7	2 (28.6%)
bgd (Bangladesh)	35	2 (5.7%)	1 (2.9%)	32 (91.4%)	0 (0.0%)	23	2 (8.7%)
bhr (Bahrain)	22	2 (9.1%)	3 (13.6%)	17 (77.3%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	54	2 (3.7%)	1 (1.9%)	51 (94.4%)	0 (0.0%)	7	1 (14.3%)
btn (Bhutan)	8	2 (25.0%)	2 (25.0%)	4 (50.0%)	0 (0.0%)	3	1 (33.3%)
cri (Costa Rica)	10	2 (20.0%)	1 (10.0%)	7 (70.0%)	0 (0.0%)	7	1 (14.3%)
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%)
mmr (Myanmar)	18	2 (11.1%)	0 (0.0%)	16 (88.9%)	0 (0.0%)	11	2 (18.2%)
nzl (New Zealand)	27	2 (7.4%)	6 (22.2%)	18 (66.7%)	1 (3.7%)	12	2 (16.7%)
pak (Pakistan)	28	2 (7.1%)	7 (25.0%)	19 (67.9%)	0 (0.0%)	12	2 (16.7%)
sgp (Singapore)	40	2 (5.0%)	11 (27.5%)	27 (67.5%)	0 (0.0%)	15	1 (6.7%)
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%)
arm (Armenia)	15	1 (6.7%)	0 (0.0%)	14 (93.3%)	0 (0.0%)	5	1 (20.0%)
blz (Belize)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	1	1 (100.0%)
bwa (Botswana)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
civ (Ivory Coast (Cote D'Ivoire))	7	1 (14.3%)	0 (0.0%)	6 (85.7%)	0 (0.0%)	1	1 (100.0%)
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%)
fra (France)	120	1 (0.8%)	33 (27.5%)	86 (71.7%)	0 (0.0%)	20	1 (5.0%)
hun (Hungary)	16	1 (6.3%)	7 (43.8%)	8 (50.0%)	0 (0.0%)	6	1 (16.7%)
kaz (Kazakhstan)	68	1 (1.5%)	5 (7.4%)	62 (91.2%)	0 (0.0%)	12	1 (8.3%)
kor (South Korea)	65	1 (1.5%)	35 (53.8%)	29 (44.6%)	0 (0.0%)	7	1 (14.3%)
ltu (Lithuania)	13	1 (7.7%)	2 (15.4%)	10 (76.9%)	0 (0.0%)	6	1 (16.7%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	16	1 (6.3%)	4 (25.0%)	11 (68.8%)	0 (0.0%)	5	1 (20.0%)
nor (Norway)	32	1 (3.1%)	4 (12.5%)	27 (84.4%)	0 (0.0%)	11	1 (9.1%)
pri (Puerto Rico)	9	1 (11.1%)	2 (22.2%)	6 (66.7%)	0 (0.0%)	2	1 (50.0%)
pse (Palestinian Territory, Occupied)	27	1 (3.7%)	0 (0.0%)	26 (96.3%)	0 (0.0%)	1	1 (100.0%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
uga (Uganda)	25	1 (4.0%)	4 (16.0%)	20 (80.0%)	0 (0.0%)	7	1 (14.3%)
zmb (Zambia)	4	1 (25.0%)	0 (0.0%)	3 (75.0%)	0 (0.0%)	3	1 (33.3%)
and (Andorra, Principality of)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	73	0 (0.0%)	16 (21.9%)	57 (78.1%)	0 (0.0%)	17	0 (0.0%)
aze (Azerbaijan)	31	0 (0.0%)	0 (0.0%)	31 (100.0%)	0 (0.0%)	3	0 (0.0%)
bgr (Bulgaria)	32	0 (0.0%)	13 (40.6%)	19 (59.4%)	0 (0.0%)	22	0 (0.0%)
bih (Bosnia and Herzegovina)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	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)	3	0 (0.0%)	1 (33.3%)	2 (66.7%)	0 (0.0%)	2	0 (0.0%)
dom (Dominican Republic)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
dza (Algeria)	35	0 (0.0%)	0 (0.0%)	35 (100.0%)	0 (0.0%)	1	0 (0.0%)
est (Estonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
eth (Ethiopia)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	28	0 (0.0%)	9 (32.1%)	19 (67.9%)	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%)
geo (Georgia)	14	0 (0.0%)	0 (0.0%)	14 (100.0%)	0 (0.0%)	4	0 (0.0%)
gha (Ghana)	46	0 (0.0%)	0 (0.0%)	46 (100.0%)	0 (0.0%)	4	0 (0.0%)
gtm (Guatemala)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
hrv (Croatia)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
irl (Ireland)	43	0 (0.0%)	12 (27.9%)	31 (72.1%)	0 (0.0%)	18	0 (0.0%)
irq (Iraq)	11	0 (0.0%)	0 (0.0%)	11 (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)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	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%)
lux (Luxembourg)	6	0 (0.0%)	5 (83.3%)	1 (16.7%)	0 (0.0%)	3	0 (0.0%)
lva (Latvia)	7	0 (0.0%)	4 (57.1%)	3 (42.9%)	0 (0.0%)	4	0 (0.0%)
mar (Morocco)	36	0 (0.0%)	0 (0.0%)	36 (100.0%)	0 (0.0%)	2	0 (0.0%)
mdv (Maldives)	7	0 (0.0%)	0 (0.0%)	7 (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%)
nam (Namibia)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	24	0 (0.0%)	4 (16.7%)	20 (83.3%)	0 (0.0%)	5	0 (0.0%)
omn (Oman)	24	0 (0.0%)	1 (4.2%)	23 (95.8%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	19	0 (0.0%)	7 (36.8%)	12 (63.2%)	0 (0.0%)	6	0 (0.0%)
prt (Portugal)	83	0 (0.0%)	16 (19.3%)	67 (80.7%)	0 (0.0%)	8	0 (0.0%)
pyf (Polynesia [French])	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	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)	6	0 (0.0%)	2 (33.3%)	4 (66.7%)	0 (0.0%)	3	0 (0.0%)
sdn (Sudan)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	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%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	4	0 (0.0%)
svn (Slovenia)	10	0 (0.0%)	1 (10.0%)	9 (90.0%)	0 (0.0%)	4	0 (0.0%)
syc (Seychelles)	2	0 (0.0%)	2 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
syr (Syria)	14	0 (0.0%)	0 (0.0%)	14 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	7	0 (0.0%)	6 (85.7%)	1 (14.3%)	0 (0.0%)	2	0 (0.0%)
tkm (Turkmenistan)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
vgb (British Virgin Islands)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)