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)	2740	427 (15.6%)	600 (21.9%)	1678 (61.2%)	35 (1.3%)	601	247 (41.1%)
usa (United States)	1843	159 (8.6%)	518 (28.1%)	1160 (62.9%)	6 (0.3%)	331	73 (22.1%)
ind (India)	540	150 (27.8%)	63 (11.7%)	325 (60.2%)	2 (0.4%)	39	15 (38.5%)
egy (Egypt)	293	91 (31.1%)	0 (0.0%)	202 (68.9%)	0 (0.0%)	6	2 (33.3%)
chl (Chile)	283	60 (21.2%)	17 (6.0%)	206 (72.8%)	0 (0.0%)	25	6 (24.0%)
grc (Greece)	122	36 (29.5%)	10 (8.2%)	76 (62.3%)	0 (0.0%)	8	1 (12.5%)
zaf (South Africa)	204	33 (16.2%)	11 (5.4%)	160 (78.4%)	0 (0.0%)	45	19 (42.2%)
tur (Turkey)	724	30 (4.1%)	65 (9.0%)	629 (86.9%)	0 (0.0%)	84	16 (19.0%)
ita (Italy)	236	29 (12.3%)	18 (7.6%)	189 (80.1%)	0 (0.0%)	44	14 (31.8%)
idn (Indonesia)	43	25 (58.1%)	6 (14.0%)	12 (27.9%)	0 (0.0%)	22	13 (59.1%)
gbr (United Kingdom)	318	23 (7.2%)	66 (20.8%)	229 (72.0%)	0 (0.0%)	75	15 (20.0%)
nld (Netherlands)	434	22 (5.1%)	112 (25.8%)	298 (68.7%)	2 (0.5%)	79	13 (16.5%)
rus (Russian Federation)	148	21 (14.2%)	16 (10.8%)	111 (75.0%)	0 (0.0%)	56	13 (23.2%)
chn (China)	497	19 (3.8%)	163 (32.8%)	314 (63.2%)	1 (0.2%)	27	9 (33.3%)
ven (Venezuela)	109	19 (17.4%)	7 (6.4%)	82 (75.2%)	1 (0.9%)	15	5 (33.3%)
dnk (Denmark)	32	16 (50.0%)	5 (15.6%)	11 (34.4%)	0 (0.0%)	9	3 (33.3%)
ukr (Ukraine)	48	16 (33.3%)	22 (45.8%)	10 (20.8%)	0 (0.0%)	22	8 (36.4%)
vnm (Vietnam)	95	16 (16.8%)	7 (7.4%)	72 (75.8%)	0 (0.0%)	11	7 (63.6%)
ken (Kenya)	132	15 (11.4%)	7 (5.3%)	109 (82.6%)	1 (0.8%)	21	9 (42.9%)
pry (Paraguay)	30	15 (50.0%)	7 (23.3%)	8 (26.7%)	0 (0.0%)	13	9 (69.2%)
can (Canada)	200	14 (7.0%)	28 (14.0%)	158 (79.0%)	0 (0.0%)	42	8 (19.0%)
mex (Mexico)	304	14 (4.6%)	24 (7.9%)	266 (87.5%)	0 (0.0%)	23	5 (21.7%)
twn (Taiwan)	93	14 (15.1%)	3 (3.2%)	76 (81.7%)	0 (0.0%)	6	2 (33.3%)
col (Colombia)	79	13 (16.5%)	4 (5.1%)	62 (78.5%)	0 (0.0%)	12	5 (41.7%)
phl (Philippines)	127	13 (10.2%)	18 (14.2%)	96 (75.6%)	0 (0.0%)	19	7 (36.8%)
rou (Romania)	97	13 (13.4%)	36 (37.1%)	48 (49.5%)	0 (0.0%)	19	2 (10.5%)
tun (Tunisia)	27	13 (48.1%)	0 (0.0%)	14 (51.9%)	0 (0.0%)	3	2 (66.7%)
arg (Argentina)	89	12 (13.5%)	13 (14.6%)	64 (71.9%)	0 (0.0%)	21	5 (23.8%)
aus (Australia)	141	11 (7.8%)	28 (19.9%)	101 (71.6%)	1 (0.7%)	37	10 (27.0%)
mdv (Maldives)	17	11 (64.7%)	1 (5.9%)	5 (29.4%)	0 (0.0%)	3	1 (33.3%)
tha (Thailand)	197	11 (5.6%)	5 (2.5%)	180 (91.4%)	1 (0.5%)	18	8 (44.4%)
jpn (Japan)	225	10 (4.4%)	44 (19.6%)	171 (76.0%)	0 (0.0%)	37	8 (21.6%)
hkg (Hong Kong)	39	9 (23.1%)	10 (25.6%)	20 (51.3%)	0 (0.0%)	22	8 (36.4%)
isr (Israel)	111	8 (7.2%)	15 (13.5%)	88 (79.3%)	0 (0.0%)	9	1 (11.1%)
tza (Tanzania)	24	8 (33.3%)	1 (4.2%)	15 (62.5%)	0 (0.0%)	13	7 (53.8%)
bol (Bolivia)	56	7 (12.5%)	6 (10.7%)	43 (76.8%)	0 (0.0%)	4	2 (50.0%)
npl (Nepal)	46	7 (15.2%)	6 (13.0%)	32 (69.6%)	1 (2.2%)	10	4 (40.0%)
deu (Germany)	470	6 (1.3%)	96 (20.4%)	368 (78.3%)	0 (0.0%)	68	6 (8.8%)
irn (Iran)	299	5 (1.7%)	6 (2.0%)	287 (96.0%)	1 (0.3%)	19	4 (21.1%)
mus (Mauritius)	16	5 (31.3%)	0 (0.0%)	11 (68.8%)	0 (0.0%)	13	4 (30.8%)
pan (Panama)	59	5 (8.5%)	2 (3.4%)	52 (88.1%)	0 (0.0%)	6	3 (50.0%)
ury (Uruguay)	199	5 (2.5%)	11 (5.5%)	182 (91.5%)	1 (0.5%)	6	3 (50.0%)
bgr (Bulgaria)	43	4 (9.3%)	4 (9.3%)	35 (81.4%)	0 (0.0%)	20	3 (15.0%)
btn (Bhutan)	8	4 (50.0%)	1 (12.5%)	3 (37.5%)	0 (0.0%)	1	1 (100.0%)
esp (Spain)	106	4 (3.8%)	9 (8.5%)	93 (87.7%)	0 (0.0%)	16	3 (18.8%)
fra (France)	154	4 (2.6%)	49 (31.8%)	101 (65.6%)	0 (0.0%)	22	4 (18.2%)
jor (Jordan)	7	4 (57.1%)	1 (14.3%)	2 (28.6%)	0 (0.0%)	3	2 (66.7%)
mwi (Malawi)	14	4 (28.6%)	1 (7.1%)	8 (57.1%)	1 (7.1%)	4	1 (25.0%)
are (United Arab Emirates)	34	3 (8.8%)	6 (17.6%)	24 (70.6%)	1 (2.9%)	6	2 (33.3%)
bgd (Bangladesh)	18	3 (16.7%)	1 (5.6%)	14 (77.8%)	0 (0.0%)	9	2 (22.2%)
dza (Algeria)	21	3 (14.3%)	0 (0.0%)	18 (85.7%)	0 (0.0%)	2	1 (50.0%)
ecu (Ecuador)	30	3 (10.0%)	3 (10.0%)	23 (76.7%)	1 (3.3%)	10	2 (20.0%)
srb (Serbia)	37	3 (8.1%)	3 (8.1%)	31 (83.8%)	0 (0.0%)	11	2 (18.2%)
swe (Sweden)	61	3 (4.9%)	15 (24.6%)	43 (70.5%)	0 (0.0%)	22	3 (13.6%)
cri (Costa Rica)	12	2 (16.7%)	1 (8.3%)	9 (75.0%)	0 (0.0%)	8	2 (25.0%)
cze (Czech Republic)	29	2 (6.9%)	3 (10.3%)	24 (82.8%)	0 (0.0%)	13	2 (15.4%)
est (Estonia)	6	2 (33.3%)	2 (33.3%)	2 (33.3%)	0 (0.0%)	4	2 (50.0%)
pol (Poland)	169	2 (1.2%)	13 (7.7%)	154 (91.1%)	0 (0.0%)	27	1 (3.7%)
sur (Suriname)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
abw (Aruba)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
ago (Angola)	127	1 (0.8%)	3 (2.4%)	123 (96.9%)	0 (0.0%)	5	1 (20.0%)
atg (Antigua and Barbuda)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
bhr (Bahrain)	44	1 (2.3%)	3 (6.8%)	40 (90.9%)	0 (0.0%)	4	1 (25.0%)
bwa (Botswana)	5	1 (20.0%)	0 (0.0%)	4 (80.0%)	0 (0.0%)	3	1 (33.3%)
dji (Djibouti)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
eth (Ethiopia)	21	1 (4.8%)	0 (0.0%)	20 (95.2%)	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%)
irq (Iraq)	10	1 (10.0%)	0 (0.0%)	9 (90.0%)	0 (0.0%)	5	1 (20.0%)
isl (Iceland)	4	1 (25.0%)	1 (25.0%)	2 (50.0%)	0 (0.0%)	3	1 (33.3%)
lbn (Lebanon)	5	1 (20.0%)	0 (0.0%)	4 (80.0%)	0 (0.0%)	2	1 (50.0%)
lux (Luxembourg)	10	1 (10.0%)	7 (70.0%)	2 (20.0%)	0 (0.0%)	4	1 (25.0%)
nzl (New Zealand)	46	1 (2.2%)	7 (15.2%)	38 (82.6%)	0 (0.0%)	9	1 (11.1%)
per (Peru)	10	1 (10.0%)	1 (10.0%)	7 (70.0%)	1 (10.0%)	8	2 (25.0%)
png (Papua New Guinea)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
rwa (Rwanda)	5	1 (20.0%)	1 (20.0%)	3 (60.0%)	0 (0.0%)	4	1 (25.0%)
sau (Saudi Arabia)	285	1 (0.4%)	30 (10.5%)	252 (88.4%)	2 (0.7%)	8	2 (25.0%)
sgp (Singapore)	35	1 (2.9%)	12 (34.3%)	22 (62.9%)	0 (0.0%)	14	1 (7.1%)
alb (Albania)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
arm (Armenia)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	3	0 (0.0%)
aut (Austria)	73	0 (0.0%)	11 (15.1%)	62 (84.9%)	0 (0.0%)	15	0 (0.0%)
aze (Azerbaijan)	16	0 (0.0%)	0 (0.0%)	16 (100.0%)	0 (0.0%)	3	0 (0.0%)
bel (Belgium)	34	0 (0.0%)	7 (20.6%)	27 (79.4%)	0 (0.0%)	7	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%)
blr (Belarus)	34	0 (0.0%)	0 (0.0%)	34 (100.0%)	0 (0.0%)	4	0 (0.0%)
bmu (Bermuda)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
che (Switzerland)	52	0 (0.0%)	15 (28.8%)	37 (71.2%)	0 (0.0%)	18	0 (0.0%)
cmr (Cameroon)	5	0 (0.0%)	0 (0.0%)	5 (100.0%)	0 (0.0%)	4	0 (0.0%)
cod (Congo, The Democratic Republic of the)	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	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%)
dma (Dominica)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
dom (Dominican Republic)	24	0 (0.0%)	5 (20.8%)	19 (79.2%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	12	0 (0.0%)	9 (75.0%)	3 (25.0%)	0 (0.0%)	6	0 (0.0%)
fji (Fiji)	6	0 (0.0%)	1 (16.7%)	5 (83.3%)	0 (0.0%)	2	0 (0.0%)
geo (Georgia)	10	0 (0.0%)	1 (10.0%)	9 (90.0%)	0 (0.0%)	3	0 (0.0%)
gha (Ghana)	31	0 (0.0%)	0 (0.0%)	31 (100.0%)	0 (0.0%)	3	0 (0.0%)
gum (Guam [US])	4	0 (0.0%)	2 (50.0%)	2 (50.0%)	0 (0.0%)	3	0 (0.0%)
hrv (Croatia)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	2	0 (0.0%)
hun (Hungary)	28	0 (0.0%)	11 (39.3%)	17 (60.7%)	0 (0.0%)	12	0 (0.0%)
irl (Ireland)	56	0 (0.0%)	13 (23.2%)	43 (76.8%)	0 (0.0%)	15	0 (0.0%)
kaz (Kazakhstan)	18	0 (0.0%)	2 (11.1%)	16 (88.9%)	0 (0.0%)	8	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)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	6	0 (0.0%)
kor (South Korea)	80	0 (0.0%)	44 (55.0%)	36 (45.0%)	0 (0.0%)	9	0 (0.0%)
kwt (Kuwait)	2	0 (0.0%)	2 (100.0%)	0 (0.0%)	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%)
lby (Libya)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	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)	30	0 (0.0%)	0 (0.0%)	30 (100.0%)	0 (0.0%)	3	0 (0.0%)
ltu (Lithuania)	35	0 (0.0%)	4 (11.4%)	31 (88.6%)	0 (0.0%)	6	0 (0.0%)
lva (Latvia)	4	0 (0.0%)	2 (50.0%)	2 (50.0%)	0 (0.0%)	3	0 (0.0%)
mar (Morocco)	114	0 (0.0%)	1 (0.9%)	113 (99.1%)	0 (0.0%)	7	0 (0.0%)
mda (Moldova, Republic of)	10	0 (0.0%)	3 (30.0%)	6 (60.0%)	1 (10.0%)	6	1 (16.7%)
mkd (Macedonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
mli (Mali)	2	0 (0.0%)	2 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
mlt (Malta)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
mmr (Myanmar)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	3	0 (0.0%)
mng (Mongolia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
moz (Mozambique)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
mrt (Mauritania)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
mys (Malaysia)	6	0 (0.0%)	2 (33.3%)	4 (66.7%)	0 (0.0%)	4	0 (0.0%)
nam (Namibia)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	34	0 (0.0%)	2 (5.9%)	32 (94.1%)	0 (0.0%)	5	0 (0.0%)
nor (Norway)	28	0 (0.0%)	9 (32.1%)	19 (67.9%)	0 (0.0%)	10	0 (0.0%)
omn (Oman)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
pak (Pakistan)	61	0 (0.0%)	4 (6.6%)	57 (93.4%)	0 (0.0%)	7	0 (0.0%)
pri (Puerto Rico)	4	0 (0.0%)	3 (75.0%)	1 (25.0%)	0 (0.0%)	2	0 (0.0%)
prt (Portugal)	85	0 (0.0%)	21 (24.7%)	62 (72.9%)	2 (2.4%)	8	2 (25.0%)
pse (Palestinian Territory, Occupied)	34	0 (0.0%)	0 (0.0%)	34 (100.0%)	0 (0.0%)	1	0 (0.0%)
qat (Qatar)	8	0 (0.0%)	0 (0.0%)	8 (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%)
sdn (Sudan)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	0 (0.0%)
som (Somalia)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	6	0 (0.0%)
svk (Slovak Republic)	18	0 (0.0%)	3 (16.7%)	15 (83.3%)	0 (0.0%)	9	0 (0.0%)
svn (Slovenia)	27	0 (0.0%)	1 (3.7%)	26 (96.3%)	0 (0.0%)	7	0 (0.0%)
syc (Seychelles)	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	0 (0.0%)	2	0 (0.0%)
syr (Syria)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	9	0 (0.0%)	5 (55.6%)	3 (33.3%)	1 (11.1%)	3	1 (33.3%)
tto (Trinidad and Tobago)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
uga (Uganda)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
uzb (Uzbekistan)	20	0 (0.0%)	1 (5.0%)	19 (95.0%)	0 (0.0%)	6	0 (0.0%)
vut (Vanuatu)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)