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)	2755	427 (15.5%)	591 (21.5%)	1716 (62.3%)	21 (0.8%)	638	246 (38.6%)
egy (Egypt)	432	139 (32.2%)	0 (0.0%)	293 (67.8%)	0 (0.0%)	5	2 (40.0%)
usa (United States)	1750	123 (7.0%)	486 (27.8%)	1135 (64.9%)	6 (0.3%)	319	66 (20.7%)
tun (Tunisia)	76	50 (65.8%)	0 (0.0%)	26 (34.2%)	0 (0.0%)	5	4 (80.0%)
chl (Chile)	223	38 (17.0%)	12 (5.4%)	173 (77.6%)	0 (0.0%)	19	3 (15.8%)
nld (Netherlands)	468	30 (6.4%)	113 (24.1%)	324 (69.2%)	1 (0.2%)	75	17 (22.7%)
ind (India)	383	29 (7.6%)	41 (10.7%)	311 (81.2%)	2 (0.5%)	28	7 (25.0%)
zaf (South Africa)	184	28 (15.2%)	8 (4.3%)	148 (80.4%)	0 (0.0%)	49	21 (42.9%)
grc (Greece)	123	27 (22.0%)	8 (6.5%)	88 (71.5%)	0 (0.0%)	8	1 (12.5%)
rus (Russian Federation)	288	27 (9.4%)	25 (8.7%)	236 (81.9%)	0 (0.0%)	90	15 (16.7%)
tur (Turkey)	538	27 (5.0%)	37 (6.9%)	474 (88.1%)	0 (0.0%)	66	13 (19.7%)
idn (Indonesia)	34	21 (61.8%)	6 (17.6%)	7 (20.6%)	0 (0.0%)	19	10 (52.6%)
ita (Italy)	177	20 (11.3%)	18 (10.2%)	137 (77.4%)	2 (1.1%)	38	12 (31.6%)
ven (Venezuela)	111	20 (18.0%)	9 (8.1%)	78 (70.3%)	4 (3.6%)	15	5 (33.3%)
chn (China)	441	18 (4.1%)	145 (32.9%)	278 (63.0%)	0 (0.0%)	27	5 (18.5%)
jpn (Japan)	219	18 (8.2%)	49 (22.4%)	152 (69.4%)	0 (0.0%)	42	14 (33.3%)
rou (Romania)	104	18 (17.3%)	30 (28.8%)	56 (53.8%)	0 (0.0%)	12	2 (16.7%)
vnm (Vietnam)	80	18 (22.5%)	10 (12.5%)	51 (63.8%)	1 (1.3%)	7	5 (71.4%)
ukr (Ukraine)	61	16 (26.2%)	25 (41.0%)	20 (32.8%)	0 (0.0%)	33	10 (30.3%)
gbr (United Kingdom)	346	15 (4.3%)	70 (20.2%)	259 (74.9%)	2 (0.6%)	78	12 (15.4%)
phl (Philippines)	96	15 (15.6%)	11 (11.5%)	70 (72.9%)	0 (0.0%)	22	8 (36.4%)
aus (Australia)	145	13 (9.0%)	27 (18.6%)	104 (71.7%)	1 (0.7%)	37	11 (29.7%)
can (Canada)	190	13 (6.8%)	31 (16.3%)	146 (76.8%)	0 (0.0%)	39	6 (15.4%)
mex (Mexico)	293	13 (4.4%)	26 (8.9%)	254 (86.7%)	0 (0.0%)	31	5 (16.1%)
mwi (Malawi)	43	13 (30.2%)	1 (2.3%)	28 (65.1%)	1 (2.3%)	5	2 (40.0%)
twn (Taiwan)	102	13 (12.7%)	5 (4.9%)	84 (82.4%)	0 (0.0%)	10	2 (20.0%)
hkg (Hong Kong)	49	11 (22.4%)	11 (22.4%)	26 (53.1%)	1 (2.0%)	22	9 (40.9%)
ken (Kenya)	96	11 (11.5%)	6 (6.3%)	78 (81.3%)	1 (1.0%)	21	8 (38.1%)
npl (Nepal)	65	11 (16.9%)	10 (15.4%)	43 (66.2%)	1 (1.5%)	12	8 (66.7%)
dnk (Denmark)	30	10 (33.3%)	8 (26.7%)	12 (40.0%)	0 (0.0%)	11	3 (27.3%)
ury (Uruguay)	167	9 (5.4%)	14 (8.4%)	143 (85.6%)	1 (0.6%)	11	6 (54.5%)
jor (Jordan)	16	8 (50.0%)	1 (6.3%)	7 (43.8%)	0 (0.0%)	3	2 (66.7%)
pry (Paraguay)	28	8 (28.6%)	6 (21.4%)	14 (50.0%)	0 (0.0%)	8	6 (75.0%)
bol (Bolivia)	67	7 (10.4%)	7 (10.4%)	53 (79.1%)	0 (0.0%)	4	2 (50.0%)
deu (Germany)	377	7 (1.9%)	80 (21.2%)	289 (76.7%)	1 (0.3%)	55	8 (14.5%)
esp (Spain)	95	7 (7.4%)	12 (12.6%)	76 (80.0%)	0 (0.0%)	19	6 (31.6%)
mus (Mauritius)	25	7 (28.0%)	0 (0.0%)	18 (72.0%)	0 (0.0%)	15	5 (33.3%)
col (Colombia)	72	6 (8.3%)	4 (5.6%)	62 (86.1%)	0 (0.0%)	13	4 (30.8%)
mdv (Maldives)	10	6 (60.0%)	1 (10.0%)	3 (30.0%)	0 (0.0%)	2	1 (50.0%)
tha (Thailand)	221	6 (2.7%)	4 (1.8%)	210 (95.0%)	1 (0.5%)	14	4 (28.6%)
ecu (Ecuador)	46	5 (10.9%)	9 (19.6%)	32 (69.6%)	0 (0.0%)	12	3 (25.0%)
irn (Iran)	275	5 (1.8%)	15 (5.5%)	255 (92.7%)	0 (0.0%)	23	4 (17.4%)
cze (Czech Republic)	23	4 (17.4%)	3 (13.0%)	16 (69.6%)	0 (0.0%)	14	3 (21.4%)
swe (Sweden)	45	4 (8.9%)	13 (28.9%)	28 (62.2%)	0 (0.0%)	21	3 (14.3%)
arg (Argentina)	61	3 (4.9%)	12 (19.7%)	46 (75.4%)	0 (0.0%)	16	3 (18.8%)
isr (Israel)	51	3 (5.9%)	8 (15.7%)	40 (78.4%)	0 (0.0%)	7	2 (28.6%)
pan (Panama)	57	3 (5.3%)	8 (14.0%)	46 (80.7%)	0 (0.0%)	7	2 (28.6%)
srb (Serbia)	78	3 (3.8%)	1 (1.3%)	74 (94.9%)	0 (0.0%)	10	2 (20.0%)
arm (Armenia)	21	2 (9.5%)	0 (0.0%)	19 (90.5%)	0 (0.0%)	7	2 (28.6%)
bgr (Bulgaria)	40	2 (5.0%)	8 (20.0%)	30 (75.0%)	0 (0.0%)	18	1 (5.6%)
bhr (Bahrain)	23	2 (8.7%)	2 (8.7%)	19 (82.6%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	37	2 (5.4%)	0 (0.0%)	35 (94.6%)	0 (0.0%)	6	1 (16.7%)
btn (Bhutan)	6	2 (33.3%)	2 (33.3%)	2 (33.3%)	0 (0.0%)	1	1 (100.0%)
dza (Algeria)	38	2 (5.3%)	0 (0.0%)	36 (94.7%)	0 (0.0%)	2	1 (50.0%)
fra (France)	129	2 (1.6%)	35 (27.1%)	92 (71.3%)	0 (0.0%)	17	2 (11.8%)
pol (Poland)	156	2 (1.3%)	11 (7.1%)	143 (91.7%)	0 (0.0%)	23	1 (4.3%)
sgp (Singapore)	36	2 (5.6%)	12 (33.3%)	22 (61.1%)	0 (0.0%)	10	1 (10.0%)
tza (Tanzania)	10	2 (20.0%)	1 (10.0%)	7 (70.0%)	0 (0.0%)	7	2 (28.6%)
abw (Aruba)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
ago (Angola)	92	1 (1.1%)	1 (1.1%)	90 (97.8%)	0 (0.0%)	7	1 (14.3%)
are (United Arab Emirates)	32	1 (3.1%)	4 (12.5%)	26 (81.3%)	1 (3.1%)	5	2 (40.0%)
bel (Belgium)	35	1 (2.9%)	5 (14.3%)	29 (82.9%)	0 (0.0%)	10	1 (10.0%)
bgd (Bangladesh)	25	1 (4.0%)	2 (8.0%)	22 (88.0%)	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%)
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)	20	1 (5.0%)	0 (0.0%)	19 (95.0%)	0 (0.0%)	1	1 (100.0%)
gin (Guinea)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
hun (Hungary)	26	1 (3.8%)	8 (30.8%)	17 (65.4%)	0 (0.0%)	9	1 (11.1%)
irq (Iraq)	15	1 (6.7%)	0 (0.0%)	14 (93.3%)	0 (0.0%)	6	1 (16.7%)
isl (Iceland)	6	1 (16.7%)	1 (16.7%)	4 (66.7%)	0 (0.0%)	4	1 (25.0%)
lbn (Lebanon)	5	1 (20.0%)	0 (0.0%)	4 (80.0%)	0 (0.0%)	2	1 (50.0%)
mda (Moldova, Republic of)	4	1 (25.0%)	1 (25.0%)	2 (50.0%)	0 (0.0%)	3	1 (33.3%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	7	1 (14.3%)	3 (42.9%)	3 (42.9%)	0 (0.0%)	4	1 (25.0%)
nzl (New Zealand)	33	1 (3.0%)	5 (15.2%)	26 (78.8%)	1 (3.0%)	10	2 (20.0%)
pak (Pakistan)	54	1 (1.9%)	4 (7.4%)	49 (90.7%)	0 (0.0%)	10	1 (10.0%)
prt (Portugal)	100	1 (1.0%)	22 (22.0%)	77 (77.0%)	0 (0.0%)	10	1 (10.0%)
sau (Saudi Arabia)	229	1 (0.4%)	31 (13.5%)	195 (85.2%)	2 (0.9%)	8	2 (25.0%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
alb (Albania)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	72	0 (0.0%)	13 (18.1%)	59 (81.9%)	0 (0.0%)	14	0 (0.0%)
aze (Azerbaijan)	27	0 (0.0%)	0 (0.0%)	27 (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%)
bih (Bosnia and Herzegovina)	3	0 (0.0%)	1 (33.3%)	2 (66.7%)	0 (0.0%)	3	0 (0.0%)
che (Switzerland)	74	0 (0.0%)	16 (21.6%)	58 (78.4%)	0 (0.0%)	18	0 (0.0%)
cmr (Cameroon)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	3	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)	14	0 (0.0%)	2 (14.3%)	12 (85.7%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	11	0 (0.0%)	7 (63.6%)	4 (36.4%)	0 (0.0%)	6	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)	33	0 (0.0%)	0 (0.0%)	33 (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%)
imn (Isle of Man)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
irl (Ireland)	39	0 (0.0%)	12 (30.8%)	27 (69.2%)	0 (0.0%)	12	0 (0.0%)
kaz (Kazakhstan)	35	0 (0.0%)	4 (11.4%)	31 (88.6%)	0 (0.0%)	10	0 (0.0%)
kgz (Kyrgyz Republic (Kyrgyzstan))	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	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)	73	0 (0.0%)	46 (63.0%)	27 (37.0%)	0 (0.0%)	7	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)	30	0 (0.0%)	4 (13.3%)	26 (86.7%)	0 (0.0%)	5	0 (0.0%)
lux (Luxembourg)	8	0 (0.0%)	6 (75.0%)	2 (25.0%)	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)	81	0 (0.0%)	1 (1.2%)	80 (98.8%)	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)	42	0 (0.0%)	4 (9.5%)	38 (90.5%)	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%)	6	0 (0.0%)
omn (Oman)	17	0 (0.0%)	0 (0.0%)	17 (100.0%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	5	0 (0.0%)	0 (0.0%)	4 (80.0%)	1 (20.0%)	5	1 (20.0%)
pri (Puerto Rico)	8	0 (0.0%)	4 (50.0%)	4 (50.0%)	0 (0.0%)	2	0 (0.0%)
pse (Palestinian Territory, Occupied)	13	0 (0.0%)	0 (0.0%)	13 (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])	6	0 (0.0%)	1 (16.7%)	5 (83.3%)	0 (0.0%)	4	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)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	3	0 (0.0%)
svk (Slovak Republic)	13	0 (0.0%)	2 (15.4%)	11 (84.6%)	0 (0.0%)	7	0 (0.0%)
svn (Slovenia)	14	0 (0.0%)	2 (14.3%)	12 (85.7%)	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)	8	0 (0.0%)	5 (62.5%)	3 (37.5%)	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)	9	0 (0.0%)	3 (33.3%)	6 (66.7%)	0 (0.0%)	3	0 (0.0%)
uzb (Uzbekistan)	10	0 (0.0%)	2 (20.0%)	8 (80.0%)	0 (0.0%)	5	0 (0.0%)
vut (Vanuatu)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)