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)	2565	374 (14.6%)	510 (19.9%)	1662 (64.8%)	19 (0.7%)	598	227 (38.0%)
usa (United States)	1653	97 (5.9%)	490 (29.6%)	1062 (64.2%)	4 (0.2%)	319	64 (20.1%)
egy (Egypt)	329	96 (29.2%)	0 (0.0%)	233 (70.8%)	0 (0.0%)	5	1 (20.0%)
tun (Tunisia)	75	61 (81.3%)	0 (0.0%)	14 (18.7%)	0 (0.0%)	4	3 (75.0%)
ind (India)	439	56 (12.8%)	40 (9.1%)	342 (77.9%)	1 (0.2%)	42	12 (28.6%)
nld (Netherlands)	441	33 (7.5%)	112 (25.4%)	295 (66.9%)	1 (0.2%)	86	20 (23.3%)
rus (Russian Federation)	592	29 (4.9%)	46 (7.8%)	517 (87.3%)	0 (0.0%)	130	18 (13.8%)
chl (Chile)	163	27 (16.6%)	12 (7.4%)	124 (76.1%)	0 (0.0%)	17	2 (11.8%)
tur (Turkey)	596	23 (3.9%)	49 (8.2%)	523 (87.8%)	1 (0.2%)	62	13 (21.0%)
jpn (Japan)	223	22 (9.9%)	43 (19.3%)	158 (70.9%)	0 (0.0%)	42	15 (35.7%)
grc (Greece)	120	20 (16.7%)	8 (6.7%)	92 (76.7%)	0 (0.0%)	7	1 (14.3%)
zaf (South Africa)	155	20 (12.9%)	6 (3.9%)	129 (83.2%)	0 (0.0%)	34	12 (35.3%)
aus (Australia)	173	18 (10.4%)	36 (20.8%)	119 (68.8%)	0 (0.0%)	46	13 (28.3%)
rou (Romania)	107	18 (16.8%)	30 (28.0%)	59 (55.1%)	0 (0.0%)	17	3 (17.6%)
vnm (Vietnam)	75	18 (24.0%)	14 (18.7%)	42 (56.0%)	1 (1.3%)	12	4 (33.3%)
idn (Indonesia)	36	17 (47.2%)	6 (16.7%)	13 (36.1%)	0 (0.0%)	21	9 (42.9%)
chn (China)	294	16 (5.4%)	55 (18.7%)	223 (75.9%)	0 (0.0%)	31	4 (12.9%)
gbr (United Kingdom)	326	15 (4.6%)	72 (22.1%)	236 (72.4%)	3 (0.9%)	82	14 (17.1%)
mwi (Malawi)	54	15 (27.8%)	1 (1.9%)	37 (68.5%)	1 (1.9%)	9	3 (33.3%)
npl (Nepal)	68	15 (22.1%)	9 (13.2%)	42 (61.8%)	2 (2.9%)	13	8 (61.5%)
ken (Kenya)	69	14 (20.3%)	5 (7.2%)	50 (72.5%)	0 (0.0%)	20	8 (40.0%)
ecu (Ecuador)	72	12 (16.7%)	11 (15.3%)	49 (68.1%)	0 (0.0%)	17	8 (47.1%)
ven (Venezuela)	107	12 (11.2%)	13 (12.1%)	80 (74.8%)	2 (1.9%)	12	3 (25.0%)
can (Canada)	164	11 (6.7%)	38 (23.2%)	115 (70.1%)	0 (0.0%)	36	5 (13.9%)
deu (Germany)	520	11 (2.1%)	141 (27.1%)	366 (70.4%)	2 (0.4%)	82	11 (13.4%)
hkg (Hong Kong)	60	10 (16.7%)	18 (30.0%)	31 (51.7%)	1 (1.7%)	24	8 (33.3%)
phl (Philippines)	140	10 (7.1%)	20 (14.3%)	110 (78.6%)	0 (0.0%)	25	6 (24.0%)
ita (Italy)	155	9 (5.8%)	19 (12.3%)	126 (81.3%)	1 (0.6%)	30	6 (20.0%)
tha (Thailand)	219	9 (4.1%)	8 (3.7%)	201 (91.8%)	1 (0.5%)	16	7 (43.8%)
twn (Taiwan)	106	9 (8.5%)	10 (9.4%)	87 (82.1%)	0 (0.0%)	12	3 (25.0%)
mus (Mauritius)	34	8 (23.5%)	2 (5.9%)	24 (70.6%)	0 (0.0%)	18	7 (38.9%)
ukr (Ukraine)	112	8 (7.1%)	23 (20.5%)	81 (72.3%)	0 (0.0%)	45	8 (17.8%)
arg (Argentina)	74	7 (9.5%)	10 (13.5%)	57 (77.0%)	0 (0.0%)	22	5 (22.7%)
irn (Iran)	223	7 (3.1%)	61 (27.4%)	155 (69.5%)	0 (0.0%)	50	7 (14.0%)
jor (Jordan)	14	7 (50.0%)	0 (0.0%)	7 (50.0%)	0 (0.0%)	2	1 (50.0%)
dnk (Denmark)	26	6 (23.1%)	8 (30.8%)	12 (46.2%)	0 (0.0%)	9	4 (44.4%)
esp (Spain)	97	6 (6.2%)	15 (15.5%)	76 (78.4%)	0 (0.0%)	28	6 (21.4%)
isr (Israel)	36	6 (16.7%)	4 (11.1%)	26 (72.2%)	0 (0.0%)	10	4 (40.0%)
mex (Mexico)	225	6 (2.7%)	22 (9.8%)	196 (87.1%)	1 (0.4%)	32	4 (12.5%)
pol (Poland)	181	6 (3.3%)	13 (7.2%)	162 (89.5%)	0 (0.0%)	27	1 (3.7%)
col (Colombia)	66	5 (7.6%)	2 (3.0%)	58 (87.9%)	1 (1.5%)	14	4 (28.6%)
pry (Paraguay)	36	5 (13.9%)	6 (16.7%)	25 (69.4%)	0 (0.0%)	9	3 (33.3%)
are (United Arab Emirates)	49	4 (8.2%)	5 (10.2%)	39 (79.6%)	1 (2.0%)	7	3 (42.9%)
bol (Bolivia)	74	4 (5.4%)	4 (5.4%)	66 (89.2%)	0 (0.0%)	4	2 (50.0%)
cze (Czech Republic)	24	4 (16.7%)	5 (20.8%)	15 (62.5%)	0 (0.0%)	16	3 (18.8%)
swe (Sweden)	57	4 (7.0%)	15 (26.3%)	38 (66.7%)	0 (0.0%)	19	3 (15.8%)
bel (Belgium)	35	3 (8.6%)	9 (25.7%)	23 (65.7%)	0 (0.0%)	18	3 (16.7%)
cri (Costa Rica)	12	3 (25.0%)	1 (8.3%)	8 (66.7%)	0 (0.0%)	8	2 (25.0%)
mda (Moldova, Republic of)	8	3 (37.5%)	3 (37.5%)	2 (25.0%)	0 (0.0%)	5	2 (40.0%)
pan (Panama)	43	3 (7.0%)	7 (16.3%)	33 (76.7%)	0 (0.0%)	6	1 (16.7%)
sau (Saudi Arabia)	176	3 (1.7%)	22 (12.5%)	151 (85.8%)	0 (0.0%)	10	3 (30.0%)
srb (Serbia)	136	3 (2.2%)	1 (0.7%)	132 (97.1%)	0 (0.0%)	11	3 (27.3%)
ury (Uruguay)	51	3 (5.9%)	10 (19.6%)	38 (74.5%)	0 (0.0%)	7	2 (28.6%)
arm (Armenia)	18	2 (11.1%)	0 (0.0%)	16 (88.9%)	0 (0.0%)	7	2 (28.6%)
bgd (Bangladesh)	35	2 (5.7%)	1 (2.9%)	32 (91.4%)	0 (0.0%)	23	2 (8.7%)
bhr (Bahrain)	22	2 (9.1%)	3 (13.6%)	17 (77.3%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	53	2 (3.8%)	1 (1.9%)	50 (94.3%)	0 (0.0%)	7	1 (14.3%)
btn (Bhutan)	7	2 (28.6%)	2 (28.6%)	3 (42.9%)	0 (0.0%)	2	1 (50.0%)
imn (Isle of Man)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2	2 (100.0%)
lbn (Lebanon)	14	2 (14.3%)	2 (14.3%)	10 (71.4%)	0 (0.0%)	7	2 (28.6%)
pak (Pakistan)	36	2 (5.6%)	6 (16.7%)	28 (77.8%)	0 (0.0%)	12	2 (16.7%)
sgp (Singapore)	37	2 (5.4%)	11 (29.7%)	24 (64.9%)	0 (0.0%)	14	1 (7.1%)
uzb (Uzbekistan)	8	2 (25.0%)	1 (12.5%)	5 (62.5%)	0 (0.0%)	4	1 (25.0%)
abw (Aruba)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
alb (Albania)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
blz (Belize)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	1	1 (100.0%)
che (Switzerland)	76	1 (1.3%)	12 (15.8%)	63 (82.9%)	0 (0.0%)	21	1 (4.8%)
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%)
dza (Algeria)	37	1 (2.7%)	0 (0.0%)	36 (97.3%)	0 (0.0%)	2	1 (50.0%)
hun (Hungary)	16	1 (6.3%)	7 (43.8%)	8 (50.0%)	0 (0.0%)	6	1 (16.7%)
kaz (Kazakhstan)	63	1 (1.6%)	4 (6.3%)	58 (92.1%)	0 (0.0%)	12	1 (8.3%)
kor (South Korea)	71	1 (1.4%)	39 (54.9%)	31 (43.7%)	0 (0.0%)	8	1 (12.5%)
mmr (Myanmar)	18	1 (5.6%)	0 (0.0%)	17 (94.4%)	0 (0.0%)	10	1 (10.0%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	12	1 (8.3%)	4 (33.3%)	7 (58.3%)	0 (0.0%)	4	1 (25.0%)
nor (Norway)	33	1 (3.0%)	4 (12.1%)	28 (84.8%)	0 (0.0%)	11	1 (9.1%)
nzl (New Zealand)	25	1 (4.0%)	6 (24.0%)	17 (68.0%)	1 (4.0%)	10	2 (20.0%)
pri (Puerto Rico)	9	1 (11.1%)	2 (22.2%)	6 (66.7%)	0 (0.0%)	2	1 (50.0%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
zmb (Zambia)	4	1 (25.0%)	0 (0.0%)	3 (75.0%)	0 (0.0%)	3	1 (33.3%)
ago (Angola)	78	0 (0.0%)	0 (0.0%)	78 (100.0%)	0 (0.0%)	7	0 (0.0%)
and (Andorra, Principality of)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	65	0 (0.0%)	11 (16.9%)	54 (83.1%)	0 (0.0%)	16	0 (0.0%)
aze (Azerbaijan)	29	0 (0.0%)	0 (0.0%)	29 (100.0%)	0 (0.0%)	2	0 (0.0%)
bgr (Bulgaria)	33	0 (0.0%)	13 (39.4%)	20 (60.6%)	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%)
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)	5	0 (0.0%)	1 (20.0%)	4 (80.0%)	0 (0.0%)	2	0 (0.0%)
est (Estonia)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
eth (Ethiopia)	17	0 (0.0%)	0 (0.0%)	17 (100.0%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	24	0 (0.0%)	10 (41.7%)	14 (58.3%)	0 (0.0%)	8	0 (0.0%)
fji (Fiji)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
fra (France)	118	0 (0.0%)	33 (28.0%)	85 (72.0%)	0 (0.0%)	19	0 (0.0%)
geo (Georgia)	11	0 (0.0%)	0 (0.0%)	11 (100.0%)	0 (0.0%)	3	0 (0.0%)
gha (Ghana)	40	0 (0.0%)	0 (0.0%)	40 (100.0%)	0 (0.0%)	4	0 (0.0%)
gtm (Guatemala)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
irl (Ireland)	40	0 (0.0%)	11 (27.5%)	29 (72.5%)	0 (0.0%)	17	0 (0.0%)
irq (Iraq)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	6	0 (0.0%)
isl (Iceland)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	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)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	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%)
ltu (Lithuania)	14	0 (0.0%)	1 (7.1%)	13 (92.9%)	0 (0.0%)	4	0 (0.0%)
lux (Luxembourg)	7	0 (0.0%)	5 (71.4%)	2 (28.6%)	0 (0.0%)	3	0 (0.0%)
lva (Latvia)	7	0 (0.0%)	4 (57.1%)	3 (42.9%)	0 (0.0%)	4	0 (0.0%)
mar (Morocco)	39	0 (0.0%)	0 (0.0%)	39 (100.0%)	0 (0.0%)	2	0 (0.0%)
mdv (Maldives)	7	0 (0.0%)	0 (0.0%)	7 (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)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	26	0 (0.0%)	4 (15.4%)	22 (84.6%)	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%)
omn (Oman)	19	0 (0.0%)	1 (5.3%)	18 (94.7%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	14	0 (0.0%)	4 (28.6%)	10 (71.4%)	0 (0.0%)	5	0 (0.0%)
prt (Portugal)	83	0 (0.0%)	16 (19.3%)	67 (80.7%)	0 (0.0%)	8	0 (0.0%)
pse (Palestinian Territory, Occupied)	20	0 (0.0%)	0 (0.0%)	20 (100.0%)	0 (0.0%)	1	0 (0.0%)
pyf (Polynesia [French])	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	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)	5	0 (0.0%)	3 (60.0%)	2 (40.0%)	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)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	4	0 (0.0%)
svn (Slovenia)	10	0 (0.0%)	1 (10.0%)	9 (90.0%)	0 (0.0%)	4	0 (0.0%)
syr (Syria)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	7	0 (0.0%)	5 (71.4%)	2 (28.6%)	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%)
uga (Uganda)	24	0 (0.0%)	4 (16.7%)	20 (83.3%)	0 (0.0%)	6	0 (0.0%)
vgb (British Virgin Islands)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)