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)	1874	331 (17.7%)	366 (19.5%)	1156 (61.7%)	21 (1.1%)	476	196 (41.2%)
usa (United States)	1935	112 (5.8%)	568 (29.4%)	1254 (64.8%)	1 (0.1%)	313	68 (21.7%)
ind (India)	787	88 (11.2%)	140 (17.8%)	558 (70.9%)	1 (0.1%)	44	14 (31.8%)
egy (Egypt)	103	86 (83.5%)	0 (0.0%)	17 (16.5%)	0 (0.0%)	5	2 (40.0%)
arg (Argentina)	104	36 (34.6%)	13 (12.5%)	55 (52.9%)	0 (0.0%)	18	5 (27.8%)
irn (Iran)	209	24 (11.5%)	17 (8.1%)	167 (79.9%)	1 (0.5%)	25	4 (16.0%)
chn (China)	420	23 (5.5%)	93 (22.1%)	302 (71.9%)	2 (0.5%)	41	17 (41.5%)
npl (Nepal)	53	21 (39.6%)	7 (13.2%)	24 (45.3%)	1 (1.9%)	10	5 (50.0%)
zaf (South Africa)	193	19 (9.8%)	7 (3.6%)	167 (86.5%)	0 (0.0%)	39	11 (28.2%)
bgd (Bangladesh)	53	18 (34.0%)	0 (0.0%)	35 (66.0%)	0 (0.0%)	29	12 (41.4%)
twn (Taiwan)	168	18 (10.7%)	49 (29.2%)	101 (60.1%)	0 (0.0%)	14	6 (42.9%)
can (Canada)	231	16 (6.9%)	43 (18.6%)	172 (74.5%)	0 (0.0%)	51	11 (21.6%)
cmr (Cameroon)	35	16 (45.7%)	1 (2.9%)	18 (51.4%)	0 (0.0%)	8	5 (62.5%)
pol (Poland)	253	16 (6.3%)	20 (7.9%)	217 (85.8%)	0 (0.0%)	48	9 (18.8%)
ita (Italy)	249	14 (5.6%)	22 (8.8%)	213 (85.5%)	0 (0.0%)	36	8 (22.2%)
nld (Netherlands)	209	14 (6.7%)	73 (34.9%)	122 (58.4%)	0 (0.0%)	62	8 (12.9%)
rus (Russian Federation)	128	14 (10.9%)	41 (32.0%)	73 (57.0%)	0 (0.0%)	57	10 (17.5%)
isr (Israel)	95	12 (12.6%)	17 (17.9%)	66 (69.5%)	0 (0.0%)	12	4 (33.3%)
vnm (Vietnam)	61	12 (19.7%)	11 (18.0%)	37 (60.7%)	1 (1.6%)	12	7 (58.3%)
tha (Thailand)	197	11 (5.6%)	6 (3.0%)	179 (90.9%)	1 (0.5%)	15	8 (53.3%)
deu (Germany)	1071	10 (0.9%)	208 (19.4%)	853 (79.6%)	0 (0.0%)	62	6 (9.7%)
ken (Kenya)	48	10 (20.8%)	0 (0.0%)	38 (79.2%)	0 (0.0%)	11	4 (36.4%)
tun (Tunisia)	16	10 (62.5%)	0 (0.0%)	6 (37.5%)	0 (0.0%)	4	2 (50.0%)
ukr (Ukraine)	64	10 (15.6%)	23 (35.9%)	31 (48.4%)	0 (0.0%)	34	4 (11.8%)
aus (Australia)	373	9 (2.4%)	45 (12.1%)	319 (85.5%)	0 (0.0%)	36	8 (22.2%)
mex (Mexico)	196	9 (4.6%)	25 (12.8%)	162 (82.7%)	0 (0.0%)	25	5 (20.0%)
hkg (Hong Kong)	38	8 (21.1%)	17 (44.7%)	13 (34.2%)	0 (0.0%)	23	4 (17.4%)
hnd (Honduras)	15	8 (53.3%)	0 (0.0%)	7 (46.7%)	0 (0.0%)	9	4 (44.4%)
hun (Hungary)	82	8 (9.8%)	11 (13.4%)	62 (75.6%)	1 (1.2%)	12	6 (50.0%)
phl (Philippines)	165	8 (4.8%)	14 (8.5%)	143 (86.7%)	0 (0.0%)	15	4 (26.7%)
pry (Paraguay)	24	8 (33.3%)	9 (37.5%)	7 (29.2%)	0 (0.0%)	5	4 (80.0%)
ago (Angola)	79	7 (8.9%)	0 (0.0%)	72 (91.1%)	0 (0.0%)	5	2 (40.0%)
mus (Mauritius)	26	7 (26.9%)	4 (15.4%)	15 (57.7%)	0 (0.0%)	11	5 (45.5%)
rou (Romania)	72	7 (9.7%)	14 (19.4%)	51 (70.8%)	0 (0.0%)	12	3 (25.0%)
are (United Arab Emirates)	50	6 (12.0%)	6 (12.0%)	38 (76.0%)	0 (0.0%)	3	2 (66.7%)
che (Switzerland)	94	6 (6.4%)	27 (28.7%)	61 (64.9%)	0 (0.0%)	23	5 (21.7%)
cri (Costa Rica)	27	6 (22.2%)	2 (7.4%)	19 (70.4%)	0 (0.0%)	14	5 (35.7%)
cze (Czech Republic)	34	6 (17.6%)	2 (5.9%)	26 (76.5%)	0 (0.0%)	19	3 (15.8%)
fra (France)	139	6 (4.3%)	32 (23.0%)	101 (72.7%)	0 (0.0%)	24	4 (16.7%)
jpn (Japan)	136	6 (4.4%)	26 (19.1%)	104 (76.5%)	0 (0.0%)	32	5 (15.6%)
swe (Sweden)	76	6 (7.9%)	27 (35.5%)	43 (56.6%)	0 (0.0%)	19	3 (15.8%)
uga (Uganda)	8	6 (75.0%)	0 (0.0%)	2 (25.0%)	0 (0.0%)	3	1 (33.3%)
chl (Chile)	73	5 (6.8%)	3 (4.1%)	65 (89.0%)	0 (0.0%)	14	5 (35.7%)
esp (Spain)	149	5 (3.4%)	23 (15.4%)	121 (81.2%)	0 (0.0%)	21	4 (19.0%)
svk (Slovak Republic)	32	5 (15.6%)	3 (9.4%)	24 (75.0%)	0 (0.0%)	12	4 (33.3%)
dnk (Denmark)	22	4 (18.2%)	3 (13.6%)	15 (68.2%)	0 (0.0%)	13	2 (15.4%)
idn (Indonesia)	42	4 (9.5%)	3 (7.1%)	35 (83.3%)	0 (0.0%)	23	4 (17.4%)
pak (Pakistan)	36	4 (11.1%)	3 (8.3%)	29 (80.6%)	0 (0.0%)	14	4 (28.6%)
ury (Uruguay)	41	4 (9.8%)	15 (36.6%)	22 (53.7%)	0 (0.0%)	9	2 (22.2%)
ecu (Ecuador)	20	3 (15.0%)	2 (10.0%)	15 (75.0%)	0 (0.0%)	11	2 (18.2%)
kor (South Korea)	107	3 (2.8%)	53 (49.5%)	51 (47.7%)	0 (0.0%)	11	3 (27.3%)
tur (Turkey)	224	3 (1.3%)	24 (10.7%)	197 (87.9%)	0 (0.0%)	37	3 (8.1%)
bfa (Burkina Faso)	10	2 (20.0%)	2 (20.0%)	6 (60.0%)	0 (0.0%)	3	1 (33.3%)
bgr (Bulgaria)	24	2 (8.3%)	5 (20.8%)	17 (70.8%)	0 (0.0%)	10	2 (20.0%)
col (Colombia)	13	2 (15.4%)	1 (7.7%)	10 (76.9%)	0 (0.0%)	10	2 (20.0%)
cyp (Cyprus)	13	2 (15.4%)	0 (0.0%)	11 (84.6%)	0 (0.0%)	5	2 (40.0%)
gha (Ghana)	26	2 (7.7%)	0 (0.0%)	24 (92.3%)	0 (0.0%)	3	1 (33.3%)
irq (Iraq)	15	2 (13.3%)	0 (0.0%)	13 (86.7%)	0 (0.0%)	6	2 (33.3%)
jor (Jordan)	19	2 (10.5%)	5 (26.3%)	12 (63.2%)	0 (0.0%)	4	2 (50.0%)
khm (Cambodia, Kingdom of)	13	2 (15.4%)	0 (0.0%)	11 (84.6%)	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	2 (50.0%)
mng (Mongolia)	4	2 (50.0%)	0 (0.0%)	2 (50.0%)	0 (0.0%)	3	2 (66.7%)
mwi (Malawi)	17	2 (11.8%)	0 (0.0%)	15 (88.2%)	0 (0.0%)	4	2 (50.0%)
mys (Malaysia)	70	2 (2.9%)	9 (12.9%)	59 (84.3%)	0 (0.0%)	6	2 (33.3%)
nor (Norway)	57	2 (3.5%)	13 (22.8%)	42 (73.7%)	0 (0.0%)	15	2 (13.3%)
prt (Portugal)	46	2 (4.3%)	9 (19.6%)	35 (76.1%)	0 (0.0%)	7	1 (14.3%)
srb (Serbia)	13	2 (15.4%)	2 (15.4%)	9 (69.2%)	0 (0.0%)	7	2 (28.6%)
ben (Benin)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	3	1 (33.3%)
bol (Bolivia)	26	1 (3.8%)	2 (7.7%)	23 (88.5%)	0 (0.0%)	6	1 (16.7%)
brb (Barbados)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	1	1 (100.0%)
btn (Bhutan)	5	1 (20.0%)	3 (60.0%)	1 (20.0%)	0 (0.0%)	2	1 (50.0%)
civ (Ivory Coast (Cote D'Ivoire))	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	2	1 (50.0%)
dom (Dominican Republic)	34	1 (2.9%)	0 (0.0%)	33 (97.1%)	0 (0.0%)	3	1 (33.3%)
gbr (United Kingdom)	371	1 (0.3%)	65 (17.5%)	304 (81.9%)	1 (0.3%)	61	2 (3.3%)
geo (Georgia)	11	1 (9.1%)	2 (18.2%)	8 (72.7%)	0 (0.0%)	4	1 (25.0%)
grc (Greece)	83	1 (1.2%)	17 (20.5%)	65 (78.3%)	0 (0.0%)	13	1 (7.7%)
gtm (Guatemala)	3	1 (33.3%)	1 (33.3%)	1 (33.3%)	0 (0.0%)	2	1 (50.0%)
hrv (Croatia)	17	1 (5.9%)	0 (0.0%)	16 (94.1%)	0 (0.0%)	5	1 (20.0%)
isl (Iceland)	5	1 (20.0%)	3 (60.0%)	1 (20.0%)	0 (0.0%)	4	1 (25.0%)
maf (Saint Martin)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
mdv (Maldives)	9	1 (11.1%)	2 (22.2%)	6 (66.7%)	0 (0.0%)	4	1 (25.0%)
pan (Panama)	20	1 (5.0%)	1 (5.0%)	18 (90.0%)	0 (0.0%)	9	1 (11.1%)
sdn (Sudan)	14	1 (7.1%)	2 (14.3%)	11 (78.6%)	0 (0.0%)	3	1 (33.3%)
sgp (Singapore)	37	1 (2.7%)	17 (45.9%)	19 (51.4%)	0 (0.0%)	17	1 (5.9%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
tza (Tanzania)	10	1 (10.0%)	2 (20.0%)	7 (70.0%)	0 (0.0%)	4	1 (25.0%)
ven (Venezuela)	87	1 (1.1%)	40 (46.0%)	46 (52.9%)	0 (0.0%)	4	1 (25.0%)
alb (Albania)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
atg (Antigua and Barbuda)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	70	0 (0.0%)	5 (7.1%)	65 (92.9%)	0 (0.0%)	15	0 (0.0%)
aze (Azerbaijan)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
bel (Belgium)	57	0 (0.0%)	15 (26.3%)	42 (73.7%)	0 (0.0%)	7	0 (0.0%)
bhr (Bahrain)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	1	0 (0.0%)
bih (Bosnia and Herzegovina)	9	0 (0.0%)	0 (0.0%)	9 (100.0%)	0 (0.0%)	2	0 (0.0%)
blr (Belarus)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	0 (0.0%)
blz (Belize)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
bmu (Bermuda)	4	0 (0.0%)	0 (0.0%)	4 (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)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	0 (0.0%)
cpv (Cape Verde)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
cub (Cuba)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
cuw (Curaçao)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
dji (Djibouti)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
dza (Algeria)	42	0 (0.0%)	0 (0.0%)	42 (100.0%)	0 (0.0%)	2	0 (0.0%)
est (Estonia)	12	0 (0.0%)	2 (16.7%)	10 (83.3%)	0 (0.0%)	5	0 (0.0%)
eth (Ethiopia)	17	0 (0.0%)	0 (0.0%)	17 (100.0%)	0 (0.0%)	1	0 (0.0%)
fin (Finland)	34	0 (0.0%)	11 (32.4%)	23 (67.6%)	0 (0.0%)	5	0 (0.0%)
fro (Faroe Islands)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
gib (Gibraltar)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
gin (Guinea)	5	0 (0.0%)	0 (0.0%)	5 (100.0%)	0 (0.0%)	3	0 (0.0%)
gmb (Gambia)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
guf (French Guyana)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
gum (Guam [US])	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
irl (Ireland)	69	0 (0.0%)	11 (15.9%)	58 (84.1%)	0 (0.0%)	19	0 (0.0%)
kaz (Kazakhstan)	14	0 (0.0%)	0 (0.0%)	14 (100.0%)	0 (0.0%)	4	0 (0.0%)
kwt (Kuwait)	122	0 (0.0%)	2 (1.6%)	120 (98.4%)	0 (0.0%)	5	0 (0.0%)
lby (Libya)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
lie (Liechtenstein)	8	0 (0.0%)	4 (50.0%)	4 (50.0%)	0 (0.0%)	3	0 (0.0%)
lka (Sri Lanka)	9	0 (0.0%)	0 (0.0%)	8 (88.9%)	1 (11.1%)	1	1 (100.0%)
ltu (Lithuania)	27	0 (0.0%)	3 (11.1%)	24 (88.9%)	0 (0.0%)	6	0 (0.0%)
lux (Luxembourg)	4	0 (0.0%)	2 (50.0%)	2 (50.0%)	0 (0.0%)	3	0 (0.0%)
lva (Latvia)	17	0 (0.0%)	1 (5.9%)	15 (88.2%)	1 (5.9%)	3	1 (33.3%)
mac (Macau)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
mar (Morocco)	41	0 (0.0%)	1 (2.4%)	40 (97.6%)	0 (0.0%)	5	0 (0.0%)
mdg (Madagascar)	5	0 (0.0%)	0 (0.0%)	5 (100.0%)	0 (0.0%)	3	0 (0.0%)
mkd (Macedonia)	17	0 (0.0%)	0 (0.0%)	17 (100.0%)	0 (0.0%)	1	0 (0.0%)
mli (Mali)	46	0 (0.0%)	0 (0.0%)	46 (100.0%)	0 (0.0%)	2	0 (0.0%)
mlt (Malta)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
mmr (Myanmar)	8	0 (0.0%)	0 (0.0%)	8 (100.0%)	0 (0.0%)	5	0 (0.0%)
moz (Mozambique)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
nam (Namibia)	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	13	0 (0.0%)	2 (15.4%)	11 (84.6%)	0 (0.0%)	5	0 (0.0%)
nzl (New Zealand)	95	0 (0.0%)	28 (29.5%)	67 (70.5%)	0 (0.0%)	13	0 (0.0%)
omn (Oman)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
per (Peru)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
pri (Puerto Rico)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	2	0 (0.0%)
pse (Palestinian Territory, Occupied)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
qat (Qatar)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	1	0 (0.0%)
reu (Reunion [French])	7	0 (0.0%)	1 (14.3%)	6 (85.7%)	0 (0.0%)	1	0 (0.0%)
rwa (Rwanda)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
sau (Saudi Arabia)	465	0 (0.0%)	27 (5.8%)	438 (94.2%)	0 (0.0%)	5	0 (0.0%)
slb (Solomon Islands)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
slv (El Salvador)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	4	0 (0.0%)
ssd (South Sudan)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
svn (Slovenia)	8	0 (0.0%)	0 (0.0%)	8 (100.0%)	0 (0.0%)	4	0 (0.0%)
syr (Syria)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	7	0 (0.0%)	3 (42.9%)	4 (57.1%)	0 (0.0%)	3	0 (0.0%)
tto (Trinidad and Tobago)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)