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)	2339	367 (15.7%)	393 (16.8%)	1556 (66.5%)	23 (1.0%)	499	211 (42.3%)
ind (India)	1189	235 (19.8%)	162 (13.6%)	787 (66.2%)	5 (0.4%)	55	18 (32.7%)
usa (United States)	2086	120 (5.8%)	551 (26.4%)	1414 (67.8%)	1 (0.0%)	302	75 (24.8%)
egy (Egypt)	153	113 (73.9%)	0 (0.0%)	40 (26.1%)	0 (0.0%)	5	2 (40.0%)
arg (Argentina)	102	56 (54.9%)	14 (13.7%)	32 (31.4%)	0 (0.0%)	17	6 (35.3%)
irn (Iran)	284	29 (10.2%)	16 (5.6%)	238 (83.8%)	1 (0.4%)	25	4 (16.0%)
zaf (South Africa)	221	27 (12.2%)	11 (5.0%)	183 (82.8%)	0 (0.0%)	44	14 (31.8%)
chn (China)	475	22 (4.6%)	114 (24.0%)	336 (70.7%)	3 (0.6%)	45	16 (35.6%)
npl (Nepal)	56	21 (37.5%)	7 (12.5%)	27 (48.2%)	1 (1.8%)	10	5 (50.0%)
tha (Thailand)	285	21 (7.4%)	10 (3.5%)	253 (88.8%)	1 (0.4%)	16	9 (56.3%)
bgd (Bangladesh)	56	20 (35.7%)	0 (0.0%)	36 (64.3%)	0 (0.0%)	31	13 (41.9%)
cmr (Cameroon)	43	20 (46.5%)	2 (4.7%)	21 (48.8%)	0 (0.0%)	9	5 (55.6%)
pol (Poland)	255	20 (7.8%)	19 (7.5%)	215 (84.3%)	1 (0.4%)	51	9 (17.6%)
tun (Tunisia)	37	20 (54.1%)	0 (0.0%)	17 (45.9%)	0 (0.0%)	5	1 (20.0%)
rus (Russian Federation)	171	16 (9.4%)	34 (19.9%)	121 (70.8%)	0 (0.0%)	57	9 (15.8%)
vnm (Vietnam)	85	16 (18.8%)	12 (14.1%)	57 (67.1%)	0 (0.0%)	10	4 (40.0%)
are (United Arab Emirates)	64	15 (23.4%)	6 (9.4%)	43 (67.2%)	0 (0.0%)	4	2 (50.0%)
ita (Italy)	362	15 (4.1%)	22 (6.1%)	325 (89.8%)	0 (0.0%)	40	9 (22.5%)
twn (Taiwan)	177	15 (8.5%)	52 (29.4%)	110 (62.1%)	0 (0.0%)	11	4 (36.4%)
can (Canada)	257	14 (5.4%)	50 (19.5%)	193 (75.1%)	0 (0.0%)	52	11 (21.2%)
nld (Netherlands)	197	13 (6.6%)	72 (36.5%)	112 (56.9%)	0 (0.0%)	64	9 (14.1%)
isr (Israel)	126	12 (9.5%)	21 (16.7%)	93 (73.8%)	0 (0.0%)	14	4 (28.6%)
ken (Kenya)	63	12 (19.0%)	1 (1.6%)	50 (79.4%)	0 (0.0%)	11	5 (45.5%)
mex (Mexico)	340	12 (3.5%)	26 (7.6%)	301 (88.5%)	1 (0.3%)	30	7 (23.3%)
ukr (Ukraine)	70	12 (17.1%)	15 (21.4%)	43 (61.4%)	0 (0.0%)	39	5 (12.8%)
ago (Angola)	93	10 (10.8%)	0 (0.0%)	83 (89.2%)	0 (0.0%)	6	3 (50.0%)
aus (Australia)	431	9 (2.1%)	43 (10.0%)	379 (87.9%)	0 (0.0%)	34	7 (20.6%)
deu (Germany)	1316	9 (0.7%)	209 (15.9%)	1098 (83.4%)	0 (0.0%)	63	6 (9.5%)
hun (Hungary)	112	8 (7.1%)	12 (10.7%)	91 (81.3%)	1 (0.9%)	15	6 (40.0%)
kor (South Korea)	172	8 (4.7%)	88 (51.2%)	76 (44.2%)	0 (0.0%)	16	3 (18.8%)
mus (Mauritius)	62	8 (12.9%)	4 (6.5%)	50 (80.6%)	0 (0.0%)	13	5 (38.5%)
pak (Pakistan)	51	8 (15.7%)	4 (7.8%)	39 (76.5%)	0 (0.0%)	20	7 (35.0%)
swe (Sweden)	113	8 (7.1%)	28 (24.8%)	77 (68.1%)	0 (0.0%)	29	6 (20.7%)
phl (Philippines)	179	7 (3.9%)	10 (5.6%)	162 (90.5%)	0 (0.0%)	15	4 (26.7%)
uga (Uganda)	13	7 (53.8%)	0 (0.0%)	6 (46.2%)	0 (0.0%)	5	2 (40.0%)
cze (Czech Republic)	32	6 (18.8%)	0 (0.0%)	26 (81.3%)	0 (0.0%)	19	3 (15.8%)
hkg (Hong Kong)	36	6 (16.7%)	11 (30.6%)	19 (52.8%)	0 (0.0%)	18	3 (16.7%)
hnd (Honduras)	12	6 (50.0%)	0 (0.0%)	6 (50.0%)	0 (0.0%)	7	3 (42.9%)
idn (Indonesia)	46	6 (13.0%)	3 (6.5%)	37 (80.4%)	0 (0.0%)	24	5 (20.8%)
tur (Turkey)	297	6 (2.0%)	13 (4.4%)	278 (93.6%)	0 (0.0%)	31	6 (19.4%)
bfa (Burkina Faso)	17	5 (29.4%)	2 (11.8%)	10 (58.8%)	0 (0.0%)	6	2 (33.3%)
chl (Chile)	79	5 (6.3%)	4 (5.1%)	70 (88.6%)	0 (0.0%)	15	5 (33.3%)
cri (Costa Rica)	27	5 (18.5%)	2 (7.4%)	20 (74.1%)	0 (0.0%)	14	4 (28.6%)
jpn (Japan)	172	5 (2.9%)	25 (14.5%)	142 (82.6%)	0 (0.0%)	32	4 (12.5%)
pry (Paraguay)	18	5 (27.8%)	9 (50.0%)	4 (22.2%)	0 (0.0%)	4	3 (75.0%)
dnk (Denmark)	22	4 (18.2%)	4 (18.2%)	14 (63.6%)	0 (0.0%)	13	3 (23.1%)
esp (Spain)	178	4 (2.2%)	25 (14.0%)	149 (83.7%)	0 (0.0%)	25	3 (12.0%)
fra (France)	157	4 (2.5%)	34 (21.7%)	119 (75.8%)	0 (0.0%)	28	4 (14.3%)
rou (Romania)	102	4 (3.9%)	21 (20.6%)	77 (75.5%)	0 (0.0%)	13	3 (23.1%)
abw (Aruba)	4	3 (75.0%)	1 (25.0%)	0 (0.0%)	0 (0.0%)	2	1 (50.0%)
che (Switzerland)	100	3 (3.0%)	17 (17.0%)	80 (80.0%)	0 (0.0%)	27	3 (11.1%)
est (Estonia)	20	3 (15.0%)	2 (10.0%)	15 (75.0%)	0 (0.0%)	6	1 (16.7%)
svk (Slovak Republic)	29	3 (10.3%)	1 (3.4%)	25 (86.2%)	0 (0.0%)	11	3 (27.3%)
ury (Uruguay)	39	3 (7.7%)	13 (33.3%)	22 (56.4%)	1 (2.6%)	8	2 (25.0%)
btn (Bhutan)	7	2 (28.6%)	3 (42.9%)	2 (28.6%)	0 (0.0%)	3	2 (66.7%)
col (Colombia)	16	2 (12.5%)	1 (6.3%)	13 (81.3%)	0 (0.0%)	12	2 (16.7%)
cyp (Cyprus)	17	2 (11.8%)	0 (0.0%)	15 (88.2%)	0 (0.0%)	4	2 (50.0%)
ecu (Ecuador)	32	2 (6.3%)	4 (12.5%)	26 (81.3%)	0 (0.0%)	13	1 (7.7%)
gha (Ghana)	32	2 (6.3%)	0 (0.0%)	30 (93.8%)	0 (0.0%)	4	1 (25.0%)
irq (Iraq)	23	2 (8.7%)	1 (4.3%)	20 (87.0%)	0 (0.0%)	7	2 (28.6%)
jor (Jordan)	42	2 (4.8%)	13 (31.0%)	27 (64.3%)	0 (0.0%)	6	2 (33.3%)
khm (Cambodia, Kingdom of)	14	2 (14.3%)	0 (0.0%)	12 (85.7%)	0 (0.0%)	8	2 (25.0%)
kwt (Kuwait)	145	2 (1.4%)	2 (1.4%)	141 (97.2%)	0 (0.0%)	5	1 (20.0%)
ltu (Lithuania)	32	2 (6.3%)	3 (9.4%)	27 (84.4%)	0 (0.0%)	10	2 (20.0%)
mng (Mongolia)	4	2 (50.0%)	0 (0.0%)	2 (50.0%)	0 (0.0%)	3	2 (66.7%)
prt (Portugal)	52	2 (3.8%)	10 (19.2%)	40 (76.9%)	0 (0.0%)	8	1 (12.5%)
sgp (Singapore)	43	2 (4.7%)	14 (32.6%)	27 (62.8%)	0 (0.0%)	22	2 (9.1%)
srb (Serbia)	17	2 (11.8%)	5 (29.4%)	10 (58.8%)	0 (0.0%)	7	1 (14.3%)
afg (Afghanistan, Islamic State of)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
arm (Armenia)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
ben (Benin)	13	1 (7.7%)	0 (0.0%)	12 (92.3%)	0 (0.0%)	5	1 (20.0%)
bgr (Bulgaria)	30	1 (3.3%)	4 (13.3%)	25 (83.3%)	0 (0.0%)	14	1 (7.1%)
bih (Bosnia and Herzegovina)	19	1 (5.3%)	1 (5.3%)	17 (89.5%)	0 (0.0%)	3	1 (33.3%)
brb (Barbados)	4	1 (25.0%)	0 (0.0%)	3 (75.0%)	0 (0.0%)	2	1 (50.0%)
civ (Ivory Coast (Cote D'Ivoire))	6	1 (16.7%)	0 (0.0%)	5 (83.3%)	0 (0.0%)	2	1 (50.0%)
dza (Algeria)	36	1 (2.8%)	0 (0.0%)	35 (97.2%)	0 (0.0%)	2	1 (50.0%)
gbr (United Kingdom)	507	1 (0.2%)	87 (17.2%)	417 (82.2%)	2 (0.4%)	67	3 (4.5%)
geo (Georgia)	14	1 (7.1%)	2 (14.3%)	11 (78.6%)	0 (0.0%)	3	1 (33.3%)
grc (Greece)	103	1 (1.0%)	19 (18.4%)	83 (80.6%)	0 (0.0%)	12	1 (8.3%)
isl (Iceland)	7	1 (14.3%)	4 (57.1%)	2 (28.6%)	0 (0.0%)	5	1 (20.0%)
lka (Sri Lanka)	10	1 (10.0%)	0 (0.0%)	9 (90.0%)	0 (0.0%)	2	1 (50.0%)
lva (Latvia)	19	1 (5.3%)	2 (10.5%)	16 (84.2%)	0 (0.0%)	4	1 (25.0%)
mda (Moldova, Republic of)	5	1 (20.0%)	0 (0.0%)	4 (80.0%)	0 (0.0%)	3	1 (33.3%)
mli (Mali)	51	1 (2.0%)	0 (0.0%)	50 (98.0%)	0 (0.0%)	3	1 (33.3%)
mlt (Malta)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	1	1 (100.0%)
mwi (Malawi)	20	1 (5.0%)	0 (0.0%)	19 (95.0%)	0 (0.0%)	4	1 (25.0%)
mys (Malaysia)	85	1 (1.2%)	12 (14.1%)	72 (84.7%)	0 (0.0%)	4	1 (25.0%)
nor (Norway)	49	1 (2.0%)	10 (20.4%)	38 (77.6%)	0 (0.0%)	12	1 (8.3%)
pan (Panama)	26	1 (3.8%)	4 (15.4%)	21 (80.8%)	0 (0.0%)	11	1 (9.1%)
sdn (Sudan)	18	1 (5.6%)	4 (22.2%)	13 (72.2%)	0 (0.0%)	4	1 (25.0%)
sen (Senegal)	4	1 (25.0%)	0 (0.0%)	3 (75.0%)	0 (0.0%)	2	1 (50.0%)
som (Somalia)	4	1 (25.0%)	0 (0.0%)	2 (50.0%)	1 (25.0%)	2	1 (50.0%)
tgo (Togo)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	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)	64	1 (1.6%)	20 (31.3%)	43 (67.2%)	0 (0.0%)	4	1 (25.0%)
atg (Antigua and Barbuda)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	100	0 (0.0%)	7 (7.0%)	93 (93.0%)	0 (0.0%)	19	0 (0.0%)
aze (Azerbaijan)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
bel (Belgium)	60	0 (0.0%)	11 (18.3%)	49 (81.7%)	0 (0.0%)	8	0 (0.0%)
bhr (Bahrain)	24	0 (0.0%)	0 (0.0%)	24 (100.0%)	0 (0.0%)	2	0 (0.0%)
blr (Belarus)	22	0 (0.0%)	0 (0.0%)	22 (100.0%)	0 (0.0%)	3	0 (0.0%)
bmu (Bermuda)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	0 (0.0%)
bol (Bolivia)	8	0 (0.0%)	2 (25.0%)	6 (75.0%)	0 (0.0%)	3	0 (0.0%)
cod (Congo, The Democratic Republic of the)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	1	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%)
dom (Dominican Republic)	44	0 (0.0%)	0 (0.0%)	44 (100.0%)	0 (0.0%)	3	0 (0.0%)
eth (Ethiopia)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	1	0 (0.0%)
fin (Finland)	70	0 (0.0%)	15 (21.4%)	55 (78.6%)	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)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
gin (Guinea)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
gtm (Guatemala)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	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%)
hrv (Croatia)	17	0 (0.0%)	0 (0.0%)	17 (100.0%)	0 (0.0%)	5	0 (0.0%)
irl (Ireland)	65	0 (0.0%)	11 (16.9%)	54 (83.1%)	0 (0.0%)	17	0 (0.0%)
kaz (Kazakhstan)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
kgz (Kyrgyz Republic (Kyrgyzstan))	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
lby (Libya)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
lie (Liechtenstein)	6	0 (0.0%)	3 (50.0%)	3 (50.0%)	0 (0.0%)	2	0 (0.0%)
lux (Luxembourg)	23	0 (0.0%)	3 (13.0%)	20 (87.0%)	0 (0.0%)	4	0 (0.0%)
mar (Morocco)	34	0 (0.0%)	1 (2.9%)	33 (97.1%)	0 (0.0%)	4	0 (0.0%)
mdg (Madagascar)	29	0 (0.0%)	0 (0.0%)	29 (100.0%)	0 (0.0%)	3	0 (0.0%)
mdv (Maldives)	11	0 (0.0%)	0 (0.0%)	11 (100.0%)	0 (0.0%)	3	0 (0.0%)
mkd (Macedonia)	22	0 (0.0%)	0 (0.0%)	22 (100.0%)	0 (0.0%)	1	0 (0.0%)
mmr (Myanmar)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
moz (Mozambique)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
nam (Namibia)	7	0 (0.0%)	1 (14.3%)	6 (85.7%)	0 (0.0%)	2	0 (0.0%)
nga (Nigeria)	11	0 (0.0%)	0 (0.0%)	11 (100.0%)	0 (0.0%)	5	0 (0.0%)
nzl (New Zealand)	106	0 (0.0%)	25 (23.6%)	81 (76.4%)	0 (0.0%)	13	0 (0.0%)
omn (Oman)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	2	0 (0.0%)
per (Peru)	10	0 (0.0%)	0 (0.0%)	10 (100.0%)	0 (0.0%)	7	0 (0.0%)
pri (Puerto Rico)	9	0 (0.0%)	0 (0.0%)	9 (100.0%)	0 (0.0%)	3	0 (0.0%)
qat (Qatar)	15	0 (0.0%)	0 (0.0%)	15 (100.0%)	0 (0.0%)	1	0 (0.0%)
reu (Reunion [French])	8	0 (0.0%)	1 (12.5%)	7 (87.5%)	0 (0.0%)	1	0 (0.0%)
sau (Saudi Arabia)	386	0 (0.0%)	27 (7.0%)	359 (93.0%)	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%)
ssd (South Sudan)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
svn (Slovenia)	10	0 (0.0%)	0 (0.0%)	10 (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)	4	0 (0.0%)	3 (75.0%)	1 (25.0%)	0 (0.0%)	2	0 (0.0%)
tto (Trinidad and Tobago)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
yem (Yemen)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)