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)	2738	424 (15.5%)	585 (21.4%)	1704 (62.2%)	25 (0.9%)	639	246 (38.5%)
egy (Egypt)	434	138 (31.8%)	0 (0.0%)	296 (68.2%)	0 (0.0%)	5	2 (40.0%)
usa (United States)	1689	113 (6.7%)	478 (28.3%)	1094 (64.8%)	4 (0.2%)	312	66 (21.2%)
tun (Tunisia)	84	58 (69.0%)	0 (0.0%)	26 (31.0%)	0 (0.0%)	5	4 (80.0%)
chl (Chile)	214	33 (15.4%)	12 (5.6%)	169 (79.0%)	0 (0.0%)	20	3 (15.0%)
ind (India)	423	32 (7.6%)	44 (10.4%)	344 (81.3%)	3 (0.7%)	33	8 (24.2%)
rus (Russian Federation)	354	32 (9.0%)	32 (9.0%)	290 (81.9%)	0 (0.0%)	102	18 (17.6%)
nld (Netherlands)	467	28 (6.0%)	107 (22.9%)	332 (71.1%)	0 (0.0%)	67	15 (22.4%)
tur (Turkey)	556	27 (4.9%)	36 (6.5%)	492 (88.5%)	1 (0.2%)	64	14 (21.9%)
grc (Greece)	128	26 (20.3%)	6 (4.7%)	96 (75.0%)	0 (0.0%)	8	1 (12.5%)
zaf (South Africa)	160	22 (13.8%)	7 (4.4%)	131 (81.9%)	0 (0.0%)	45	17 (37.8%)
idn (Indonesia)	31	19 (61.3%)	5 (16.1%)	7 (22.6%)	0 (0.0%)	18	10 (55.6%)
chn (China)	420	18 (4.3%)	132 (31.4%)	270 (64.3%)	0 (0.0%)	28	5 (17.9%)
jpn (Japan)	219	18 (8.2%)	46 (21.0%)	155 (70.8%)	0 (0.0%)	38	13 (34.2%)
ita (Italy)	163	17 (10.4%)	17 (10.4%)	127 (77.9%)	2 (1.2%)	36	10 (27.8%)
ven (Venezuela)	112	17 (15.2%)	12 (10.7%)	81 (72.3%)	2 (1.8%)	16	4 (25.0%)
vnm (Vietnam)	63	17 (27.0%)	10 (15.9%)	35 (55.6%)	1 (1.6%)	8	4 (50.0%)
mwi (Malawi)	48	16 (33.3%)	0 (0.0%)	31 (64.6%)	1 (2.1%)	5	2 (40.0%)
rou (Romania)	93	16 (17.2%)	24 (25.8%)	53 (57.0%)	0 (0.0%)	10	1 (10.0%)
can (Canada)	185	15 (8.1%)	29 (15.7%)	141 (76.2%)	0 (0.0%)	38	8 (21.1%)
gbr (United Kingdom)	355	15 (4.2%)	70 (19.7%)	267 (75.2%)	3 (0.8%)	80	13 (16.3%)
ukr (Ukraine)	65	15 (23.1%)	26 (40.0%)	24 (36.9%)	0 (0.0%)	36	11 (30.6%)
phl (Philippines)	99	14 (14.1%)	12 (12.1%)	73 (73.7%)	0 (0.0%)	22	7 (31.8%)
aus (Australia)	145	13 (9.0%)	31 (21.4%)	100 (69.0%)	1 (0.7%)	37	11 (29.7%)
mex (Mexico)	283	13 (4.6%)	28 (9.9%)	241 (85.2%)	1 (0.4%)	32	6 (18.8%)
hkg (Hong Kong)	51	12 (23.5%)	15 (29.4%)	23 (45.1%)	1 (2.0%)	20	9 (45.0%)
twn (Taiwan)	97	12 (12.4%)	6 (6.2%)	79 (81.4%)	0 (0.0%)	10	2 (20.0%)
ken (Kenya)	88	11 (12.5%)	6 (6.8%)	70 (79.5%)	1 (1.1%)	21	8 (38.1%)
dnk (Denmark)	32	10 (31.3%)	7 (21.9%)	15 (46.9%)	0 (0.0%)	10	3 (30.0%)
ecu (Ecuador)	50	10 (20.0%)	9 (18.0%)	31 (62.0%)	0 (0.0%)	13	6 (46.2%)
npl (Nepal)	62	9 (14.5%)	10 (16.1%)	42 (67.7%)	1 (1.6%)	10	6 (60.0%)
jor (Jordan)	16	8 (50.0%)	1 (6.3%)	7 (43.8%)	0 (0.0%)	3	2 (66.7%)
mus (Mauritius)	25	8 (32.0%)	0 (0.0%)	17 (68.0%)	0 (0.0%)	15	6 (40.0%)
esp (Spain)	88	7 (8.0%)	11 (12.5%)	69 (78.4%)	1 (1.1%)	22	7 (31.8%)
pry (Paraguay)	31	7 (22.6%)	7 (22.6%)	17 (54.8%)	0 (0.0%)	8	5 (62.5%)
ury (Uruguay)	122	7 (5.7%)	10 (8.2%)	104 (85.2%)	1 (0.8%)	7	4 (57.1%)
bol (Bolivia)	72	6 (8.3%)	7 (9.7%)	59 (81.9%)	0 (0.0%)	4	2 (50.0%)
col (Colombia)	69	6 (8.7%)	4 (5.8%)	59 (85.5%)	0 (0.0%)	13	4 (30.8%)
deu (Germany)	373	6 (1.6%)	84 (22.5%)	282 (75.6%)	1 (0.3%)	54	7 (13.0%)
tha (Thailand)	232	6 (2.6%)	4 (1.7%)	221 (95.3%)	1 (0.4%)	13	4 (30.8%)
are (United Arab Emirates)	38	4 (10.5%)	4 (10.5%)	29 (76.3%)	1 (2.6%)	6	3 (50.0%)
swe (Sweden)	47	4 (8.5%)	12 (25.5%)	31 (66.0%)	0 (0.0%)	20	3 (15.0%)
cze (Czech Republic)	18	3 (16.7%)	5 (27.8%)	10 (55.6%)	0 (0.0%)	12	2 (16.7%)
irn (Iran)	283	3 (1.1%)	18 (6.4%)	262 (92.6%)	0 (0.0%)	23	3 (13.0%)
mdv (Maldives)	7	3 (42.9%)	1 (14.3%)	3 (42.9%)	0 (0.0%)	2	1 (50.0%)
pol (Poland)	164	3 (1.8%)	12 (7.3%)	149 (90.9%)	0 (0.0%)	23	1 (4.3%)
srb (Serbia)	89	3 (3.4%)	1 (1.1%)	85 (95.5%)	0 (0.0%)	11	2 (18.2%)
abw (Aruba)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
arg (Argentina)	60	2 (3.3%)	12 (20.0%)	46 (76.7%)	0 (0.0%)	17	2 (11.8%)
arm (Armenia)	21	2 (9.5%)	0 (0.0%)	19 (90.5%)	0 (0.0%)	7	2 (28.6%)
bhr (Bahrain)	24	2 (8.3%)	3 (12.5%)	19 (79.2%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	40	2 (5.0%)	0 (0.0%)	38 (95.0%)	0 (0.0%)	8	1 (12.5%)
btn (Bhutan)	6	2 (33.3%)	2 (33.3%)	2 (33.3%)	0 (0.0%)	1	1 (100.0%)
dza (Algeria)	40	2 (5.0%)	0 (0.0%)	38 (95.0%)	0 (0.0%)	2	1 (50.0%)
fra (France)	121	2 (1.7%)	32 (26.4%)	87 (71.9%)	0 (0.0%)	18	2 (11.1%)
isr (Israel)	40	2 (5.0%)	5 (12.5%)	33 (82.5%)	0 (0.0%)	7	2 (28.6%)
mda (Moldova, Republic of)	5	2 (40.0%)	1 (20.0%)	2 (40.0%)	0 (0.0%)	3	1 (33.3%)
sgp (Singapore)	34	2 (5.9%)	12 (35.3%)	20 (58.8%)	0 (0.0%)	8	1 (12.5%)
ago (Angola)	83	1 (1.2%)	1 (1.2%)	81 (97.6%)	0 (0.0%)	7	1 (14.3%)
bel (Belgium)	35	1 (2.9%)	5 (14.3%)	29 (82.9%)	0 (0.0%)	9	1 (11.1%)
bgd (Bangladesh)	26	1 (3.8%)	2 (7.7%)	23 (88.5%)	0 (0.0%)	15	1 (6.7%)
blz (Belize)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	1	1 (100.0%)
bwa (Botswana)	5	1 (20.0%)	0 (0.0%)	4 (80.0%)	0 (0.0%)	3	1 (33.3%)
cok (Cook Islands)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	1	1 (100.0%)
cri (Costa Rica)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	4	1 (25.0%)
est (Estonia)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	3	1 (33.3%)
eth (Ethiopia)	25	1 (4.0%)	0 (0.0%)	24 (96.0%)	0 (0.0%)	2	1 (50.0%)
gin (Guinea)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
hun (Hungary)	20	1 (5.0%)	7 (35.0%)	12 (60.0%)	0 (0.0%)	8	1 (12.5%)
imn (Isle of Man)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
irq (Iraq)	10	1 (10.0%)	0 (0.0%)	9 (90.0%)	0 (0.0%)	5	1 (20.0%)
isl (Iceland)	6	1 (16.7%)	1 (16.7%)	4 (66.7%)	0 (0.0%)	4	1 (25.0%)
lbn (Lebanon)	11	1 (9.1%)	1 (9.1%)	9 (81.8%)	0 (0.0%)	4	1 (25.0%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	9	1 (11.1%)	4 (44.4%)	4 (44.4%)	0 (0.0%)	5	1 (20.0%)
nzl (New Zealand)	29	1 (3.4%)	5 (17.2%)	22 (75.9%)	1 (3.4%)	9	2 (22.2%)
pak (Pakistan)	50	1 (2.0%)	4 (8.0%)	45 (90.0%)	0 (0.0%)	8	1 (12.5%)
pan (Panama)	58	1 (1.7%)	8 (13.8%)	49 (84.5%)	0 (0.0%)	7	1 (14.3%)
per (Peru)	6	1 (16.7%)	0 (0.0%)	4 (66.7%)	1 (16.7%)	6	2 (33.3%)
pri (Puerto Rico)	9	1 (11.1%)	2 (22.2%)	6 (66.7%)	0 (0.0%)	3	1 (33.3%)
sau (Saudi Arabia)	197	1 (0.5%)	30 (15.2%)	166 (84.3%)	0 (0.0%)	7	1 (14.3%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
tza (Tanzania)	8	1 (12.5%)	1 (12.5%)	6 (75.0%)	0 (0.0%)	6	1 (16.7%)
alb (Albania)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	69	0 (0.0%)	12 (17.4%)	57 (82.6%)	0 (0.0%)	15	0 (0.0%)
aze (Azerbaijan)	26	0 (0.0%)	0 (0.0%)	26 (100.0%)	0 (0.0%)	2	0 (0.0%)
bfa (Burkina Faso)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
bgr (Bulgaria)	39	0 (0.0%)	9 (23.1%)	30 (76.9%)	0 (0.0%)	18	0 (0.0%)
bih (Bosnia and Herzegovina)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
che (Switzerland)	71	0 (0.0%)	15 (21.1%)	56 (78.9%)	0 (0.0%)	16	0 (0.0%)
cmr (Cameroon)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
cub (Cuba)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
cyp (Cyprus)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
dom (Dominican Republic)	6	0 (0.0%)	1 (16.7%)	5 (83.3%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	11	0 (0.0%)	8 (72.7%)	3 (27.3%)	0 (0.0%)	5	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%)	1 (7.1%)	13 (92.9%)	0 (0.0%)	3	0 (0.0%)
gha (Ghana)	30	0 (0.0%)	0 (0.0%)	30 (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)	5	0 (0.0%)	0 (0.0%)	5 (100.0%)	0 (0.0%)	2	0 (0.0%)
irl (Ireland)	39	0 (0.0%)	12 (30.8%)	27 (69.2%)	0 (0.0%)	13	0 (0.0%)
kaz (Kazakhstan)	40	0 (0.0%)	4 (10.0%)	36 (90.0%)	0 (0.0%)	11	0 (0.0%)
kgz (Kyrgyz Republic (Kyrgyzstan))	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
khm (Cambodia, Kingdom of)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
kor (South Korea)	77	0 (0.0%)	48 (62.3%)	29 (37.7%)	0 (0.0%)	6	0 (0.0%)
kwt (Kuwait)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
lao (Laos)	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)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
lie (Liechtenstein)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
ltu (Lithuania)	27	0 (0.0%)	3 (11.1%)	24 (88.9%)	0 (0.0%)	4	0 (0.0%)
lux (Luxembourg)	7	0 (0.0%)	5 (71.4%)	2 (28.6%)	0 (0.0%)	4	0 (0.0%)
lva (Latvia)	6	0 (0.0%)	2 (33.3%)	4 (66.7%)	0 (0.0%)	5	0 (0.0%)
mar (Morocco)	67	0 (0.0%)	1 (1.5%)	66 (98.5%)	0 (0.0%)	7	0 (0.0%)
mkd (Macedonia)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	3	0 (0.0%)
mmr (Myanmar)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	3	0 (0.0%)
moz (Mozambique)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
mrt (Mauritania)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
nam (Namibia)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	41	0 (0.0%)	4 (9.8%)	37 (90.2%)	0 (0.0%)	5	0 (0.0%)
nic (Nicaragua)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
nor (Norway)	33	0 (0.0%)	7 (21.2%)	26 (78.8%)	0 (0.0%)	7	0 (0.0%)
omn (Oman)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	3	0 (0.0%)
prt (Portugal)	101	0 (0.0%)	24 (23.8%)	77 (76.2%)	0 (0.0%)	10	0 (0.0%)
pse (Palestinian Territory, Occupied)	9	0 (0.0%)	0 (0.0%)	9 (100.0%)	0 (0.0%)	1	0 (0.0%)
qat (Qatar)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	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)	5	0 (0.0%)	3 (60.0%)	2 (40.0%)	0 (0.0%)	2	0 (0.0%)
sdn (Sudan)	4	0 (0.0%)	0 (0.0%)	4 (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)	5	0 (0.0%)	0 (0.0%)	5 (100.0%)	0 (0.0%)	3	0 (0.0%)
svk (Slovak Republic)	12	0 (0.0%)	2 (16.7%)	10 (83.3%)	0 (0.0%)	7	0 (0.0%)
svn (Slovenia)	12	0 (0.0%)	2 (16.7%)	10 (83.3%)	0 (0.0%)	4	0 (0.0%)
syc (Seychelles)	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	0 (0.0%)	2	0 (0.0%)
syr (Syria)	19	0 (0.0%)	0 (0.0%)	19 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	9	0 (0.0%)	6 (66.7%)	3 (33.3%)	0 (0.0%)	3	0 (0.0%)
tkm (Turkmenistan)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
tto (Trinidad and Tobago)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
uga (Uganda)	11	0 (0.0%)	3 (27.3%)	8 (72.7%)	0 (0.0%)	3	0 (0.0%)
uzb (Uzbekistan)	9	0 (0.0%)	2 (22.2%)	7 (77.8%)	0 (0.0%)	5	0 (0.0%)