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)	2515	367 (14.6%)	497 (19.8%)	1629 (64.8%)	22 (0.9%)	588	220 (37.4%)
usa (United States)	1634	94 (5.8%)	491 (30.0%)	1046 (64.0%)	3 (0.2%)	324	61 (18.8%)
egy (Egypt)	288	89 (30.9%)	0 (0.0%)	199 (69.1%)	0 (0.0%)	5	1 (20.0%)
ind (India)	447	63 (14.1%)	40 (8.9%)	343 (76.7%)	1 (0.2%)	42	13 (31.0%)
tun (Tunisia)	79	61 (77.2%)	0 (0.0%)	18 (22.8%)	0 (0.0%)	4	3 (75.0%)
rus (Russian Federation)	646	38 (5.9%)	48 (7.4%)	560 (86.7%)	0 (0.0%)	140	22 (15.7%)
nld (Netherlands)	408	31 (7.6%)	105 (25.7%)	271 (66.4%)	1 (0.2%)	88	20 (22.7%)
tur (Turkey)	609	24 (3.9%)	53 (8.7%)	531 (87.2%)	1 (0.2%)	62	15 (24.2%)
chl (Chile)	146	19 (13.0%)	13 (8.9%)	114 (78.1%)	0 (0.0%)	17	2 (11.8%)
grc (Greece)	121	19 (15.7%)	9 (7.4%)	93 (76.9%)	0 (0.0%)	7	1 (14.3%)
zaf (South Africa)	149	19 (12.8%)	7 (4.7%)	123 (82.6%)	0 (0.0%)	31	11 (35.5%)
aus (Australia)	175	18 (10.3%)	42 (24.0%)	115 (65.7%)	0 (0.0%)	51	13 (25.5%)
gbr (United Kingdom)	303	18 (5.9%)	75 (24.8%)	208 (68.6%)	2 (0.7%)	87	16 (18.4%)
jpn (Japan)	241	18 (7.5%)	46 (19.1%)	177 (73.4%)	0 (0.0%)	40	11 (27.5%)
chn (China)	287	16 (5.6%)	53 (18.5%)	218 (76.0%)	0 (0.0%)	35	5 (14.3%)
deu (Germany)	547	16 (2.9%)	156 (28.5%)	375 (68.6%)	0 (0.0%)	87	10 (11.5%)
npl (Nepal)	68	16 (23.5%)	9 (13.2%)	41 (60.3%)	2 (2.9%)	15	8 (53.3%)
vnm (Vietnam)	77	16 (20.8%)	13 (16.9%)	47 (61.0%)	1 (1.3%)	14	5 (35.7%)
idn (Indonesia)	34	15 (44.1%)	5 (14.7%)	14 (41.2%)	0 (0.0%)	19	8 (42.1%)
ken (Kenya)	72	15 (20.8%)	5 (6.9%)	52 (72.2%)	0 (0.0%)	20	9 (45.0%)
mwi (Malawi)	57	15 (26.3%)	1 (1.8%)	40 (70.2%)	1 (1.8%)	9	3 (33.3%)
rou (Romania)	117	15 (12.8%)	38 (32.5%)	64 (54.7%)	0 (0.0%)	19	3 (15.8%)
hkg (Hong Kong)	71	13 (18.3%)	19 (26.8%)	38 (53.5%)	1 (1.4%)	25	10 (40.0%)
mus (Mauritius)	39	11 (28.2%)	2 (5.1%)	26 (66.7%)	0 (0.0%)	21	9 (42.9%)
can (Canada)	173	10 (5.8%)	41 (23.7%)	122 (70.5%)	0 (0.0%)	34	5 (14.7%)
col (Colombia)	62	10 (16.1%)	1 (1.6%)	51 (82.3%)	0 (0.0%)	13	6 (46.2%)
ecu (Ecuador)	79	10 (12.7%)	9 (11.4%)	59 (74.7%)	1 (1.3%)	18	8 (44.4%)
irn (Iran)	218	10 (4.6%)	57 (26.1%)	151 (69.3%)	0 (0.0%)	51	9 (17.6%)
phl (Philippines)	157	10 (6.4%)	21 (13.4%)	126 (80.3%)	0 (0.0%)	27	7 (25.9%)
twn (Taiwan)	104	10 (9.6%)	10 (9.6%)	84 (80.8%)	0 (0.0%)	11	3 (27.3%)
ukr (Ukraine)	125	10 (8.0%)	25 (20.0%)	90 (72.0%)	0 (0.0%)	45	10 (22.2%)
ita (Italy)	152	9 (5.9%)	21 (13.8%)	121 (79.6%)	1 (0.7%)	28	6 (21.4%)
tha (Thailand)	219	9 (4.1%)	8 (3.7%)	201 (91.8%)	1 (0.5%)	17	7 (41.2%)
ven (Venezuela)	109	8 (7.3%)	17 (15.6%)	82 (75.2%)	2 (1.8%)	12	3 (25.0%)
arg (Argentina)	72	7 (9.7%)	9 (12.5%)	56 (77.8%)	0 (0.0%)	22	5 (22.7%)
jor (Jordan)	13	7 (53.8%)	0 (0.0%)	6 (46.2%)	0 (0.0%)	2	1 (50.0%)
bel (Belgium)	43	6 (14.0%)	10 (23.3%)	27 (62.8%)	0 (0.0%)	20	4 (20.0%)
dnk (Denmark)	22	6 (27.3%)	7 (31.8%)	9 (40.9%)	0 (0.0%)	8	4 (50.0%)
isr (Israel)	43	6 (14.0%)	4 (9.3%)	33 (76.7%)	0 (0.0%)	10	3 (30.0%)
pol (Poland)	187	6 (3.2%)	13 (7.0%)	168 (89.8%)	0 (0.0%)	28	1 (3.6%)
mex (Mexico)	214	5 (2.3%)	17 (7.9%)	191 (89.3%)	1 (0.5%)	32	4 (12.5%)
pry (Paraguay)	36	5 (13.9%)	5 (13.9%)	26 (72.2%)	0 (0.0%)	8	4 (50.0%)
cze (Czech Republic)	26	4 (15.4%)	5 (19.2%)	17 (65.4%)	0 (0.0%)	17	3 (17.6%)
esp (Spain)	98	4 (4.1%)	16 (16.3%)	78 (79.6%)	0 (0.0%)	28	4 (14.3%)
pan (Panama)	42	4 (9.5%)	7 (16.7%)	31 (73.8%)	0 (0.0%)	7	2 (28.6%)
swe (Sweden)	64	4 (6.3%)	16 (25.0%)	44 (68.8%)	0 (0.0%)	19	3 (15.8%)
bol (Bolivia)	75	3 (4.0%)	5 (6.7%)	67 (89.3%)	0 (0.0%)	4	1 (25.0%)
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)	201	3 (1.5%)	20 (10.0%)	178 (88.6%)	0 (0.0%)	11	3 (27.3%)
srb (Serbia)	147	3 (2.0%)	1 (0.7%)	143 (97.3%)	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)	14	3 (21.4%)	1 (7.1%)	10 (71.4%)	0 (0.0%)	6	1 (16.7%)
are (United Arab Emirates)	58	2 (3.4%)	7 (12.1%)	48 (82.8%)	1 (1.7%)	6	3 (50.0%)
bgd (Bangladesh)	35	2 (5.7%)	1 (2.9%)	32 (91.4%)	0 (0.0%)	23	2 (8.7%)
bhr (Bahrain)	18	2 (11.1%)	3 (16.7%)	13 (72.2%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	57	2 (3.5%)	1 (1.8%)	54 (94.7%)	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)	13	2 (15.4%)	1 (7.7%)	10 (76.9%)	0 (0.0%)	8	1 (12.5%)
imn (Isle of Man)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2	2 (100.0%)
lbn (Lebanon)	15	2 (13.3%)	2 (13.3%)	11 (73.3%)	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)	22	2 (9.1%)	4 (18.2%)	16 (72.7%)	0 (0.0%)	10	1 (10.0%)
pak (Pakistan)	25	2 (8.0%)	7 (28.0%)	16 (64.0%)	0 (0.0%)	11	2 (18.2%)
sgp (Singapore)	39	2 (5.1%)	11 (28.2%)	26 (66.7%)	0 (0.0%)	17	1 (5.9%)
abw (Aruba)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
ago (Angola)	75	1 (1.3%)	0 (0.0%)	74 (98.7%)	0 (0.0%)	7	1 (14.3%)
alb (Albania)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
arm (Armenia)	10	1 (10.0%)	0 (0.0%)	9 (90.0%)	0 (0.0%)	4	1 (25.0%)
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)	114	1 (0.9%)	33 (28.9%)	80 (70.2%)	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)	74	1 (1.4%)	5 (6.8%)	68 (91.9%)	0 (0.0%)	12	1 (8.3%)
kor (South Korea)	66	1 (1.5%)	35 (53.0%)	30 (45.5%)	0 (0.0%)	8	1 (12.5%)
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)	17	1 (5.9%)	4 (23.5%)	12 (70.6%)	0 (0.0%)	5	1 (20.0%)
nor (Norway)	33	1 (3.0%)	5 (15.2%)	27 (81.8%)	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)	34	1 (2.9%)	0 (0.0%)	33 (97.1%)	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)	72	0 (0.0%)	16 (22.2%)	56 (77.8%)	0 (0.0%)	16	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%)
cod (Congo, The Democratic Republic of the)	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)	32	0 (0.0%)	0 (0.0%)	32 (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)	29	0 (0.0%)	9 (31.0%)	20 (69.0%)	0 (0.0%)	7	0 (0.0%)
fji (Fiji)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
geo (Georgia)	16	0 (0.0%)	0 (0.0%)	16 (100.0%)	0 (0.0%)	4	0 (0.0%)
gha (Ghana)	55	0 (0.0%)	0 (0.0%)	55 (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)	42	0 (0.0%)	12 (28.6%)	30 (71.4%)	0 (0.0%)	18	0 (0.0%)
irq (Iraq)	10	0 (0.0%)	0 (0.0%)	10 (100.0%)	0 (0.0%)	6	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)	6	0 (0.0%)	4 (66.7%)	2 (33.3%)	0 (0.0%)	3	0 (0.0%)
mar (Morocco)	35	0 (0.0%)	0 (0.0%)	35 (100.0%)	0 (0.0%)	2	0 (0.0%)
mdv (Maldives)	6	0 (0.0%)	0 (0.0%)	6 (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)	5	0 (0.0%)	1 (20.0%)	3 (60.0%)	1 (20.0%)	1	1 (100.0%)
nga (Nigeria)	23	0 (0.0%)	4 (17.4%)	19 (82.6%)	0 (0.0%)	5	0 (0.0%)
omn (Oman)	25	0 (0.0%)	1 (4.0%)	24 (96.0%)	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])	5	0 (0.0%)	0 (0.0%)	5 (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)	9	0 (0.0%)	2 (22.2%)	7 (77.8%)	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)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	3	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)	7	0 (0.0%)	0 (0.0%)	7 (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%)