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)	2744	426 (15.5%)	590 (21.5%)	1703 (62.1%)	25 (0.9%)	637	246 (38.6%)
egy (Egypt)	432	135 (31.3%)	0 (0.0%)	297 (68.8%)	0 (0.0%)	5	1 (20.0%)
usa (United States)	1681	111 (6.6%)	470 (28.0%)	1096 (65.2%)	4 (0.2%)	311	67 (21.5%)
tun (Tunisia)	87	61 (70.1%)	0 (0.0%)	26 (29.9%)	0 (0.0%)	5	4 (80.0%)
chl (Chile)	210	33 (15.7%)	12 (5.7%)	165 (78.6%)	0 (0.0%)	19	3 (15.8%)
ind (India)	423	32 (7.6%)	44 (10.4%)	344 (81.3%)	3 (0.7%)	32	8 (25.0%)
rus (Russian Federation)	358	32 (8.9%)	32 (8.9%)	294 (82.1%)	0 (0.0%)	104	18 (17.3%)
nld (Netherlands)	467	29 (6.2%)	105 (22.5%)	333 (71.3%)	0 (0.0%)	66	16 (24.2%)
grc (Greece)	131	27 (20.6%)	6 (4.6%)	98 (74.8%)	0 (0.0%)	8	1 (12.5%)
tur (Turkey)	558	27 (4.8%)	37 (6.6%)	493 (88.4%)	1 (0.2%)	64	14 (21.9%)
zaf (South Africa)	154	20 (13.0%)	7 (4.5%)	127 (82.5%)	0 (0.0%)	43	15 (34.9%)
idn (Indonesia)	31	19 (61.3%)	5 (16.1%)	7 (22.6%)	0 (0.0%)	18	10 (55.6%)
chn (China)	412	18 (4.4%)	128 (31.1%)	266 (64.6%)	0 (0.0%)	28	5 (17.9%)
jpn (Japan)	225	18 (8.0%)	47 (20.9%)	160 (71.1%)	0 (0.0%)	39	13 (33.3%)
vnm (Vietnam)	62	18 (29.0%)	10 (16.1%)	33 (53.2%)	1 (1.6%)	9	4 (44.4%)
ita (Italy)	165	17 (10.3%)	17 (10.3%)	129 (78.2%)	2 (1.2%)	36	10 (27.8%)
mwi (Malawi)	48	16 (33.3%)	0 (0.0%)	31 (64.6%)	1 (2.1%)	5	2 (40.0%)
rou (Romania)	95	16 (16.8%)	24 (25.3%)	55 (57.9%)	0 (0.0%)	11	1 (9.1%)
ven (Venezuela)	112	16 (14.3%)	12 (10.7%)	81 (72.3%)	3 (2.7%)	14	3 (21.4%)
can (Canada)	185	15 (8.1%)	30 (16.2%)	140 (75.7%)	0 (0.0%)	38	8 (21.1%)
gbr (United Kingdom)	352	15 (4.3%)	69 (19.6%)	265 (75.3%)	3 (0.9%)	79	13 (16.5%)
ukr (Ukraine)	66	15 (22.7%)	26 (39.4%)	25 (37.9%)	0 (0.0%)	36	11 (30.6%)
phl (Philippines)	98	14 (14.3%)	12 (12.2%)	72 (73.5%)	0 (0.0%)	22	7 (31.8%)
aus (Australia)	147	13 (8.8%)	31 (21.1%)	102 (69.4%)	1 (0.7%)	37	11 (29.7%)
mex (Mexico)	278	13 (4.7%)	27 (9.7%)	237 (85.3%)	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%)
ken (Kenya)	89	12 (13.5%)	6 (6.7%)	70 (78.7%)	1 (1.1%)	21	8 (38.1%)
twn (Taiwan)	94	12 (12.8%)	6 (6.4%)	76 (80.9%)	0 (0.0%)	10	2 (20.0%)
dnk (Denmark)	32	10 (31.3%)	7 (21.9%)	15 (46.9%)	0 (0.0%)	10	3 (30.0%)
ecu (Ecuador)	51	10 (19.6%)	10 (19.6%)	31 (60.8%)	0 (0.0%)	13	6 (46.2%)
jor (Jordan)	16	8 (50.0%)	1 (6.3%)	7 (43.8%)	0 (0.0%)	3	2 (66.7%)
npl (Nepal)	63	8 (12.7%)	10 (15.9%)	43 (68.3%)	2 (3.2%)	10	6 (60.0%)
esp (Spain)	89	7 (7.9%)	13 (14.6%)	68 (76.4%)	1 (1.1%)	23	7 (30.4%)
mus (Mauritius)	23	7 (30.4%)	0 (0.0%)	16 (69.6%)	0 (0.0%)	14	6 (42.9%)
pry (Paraguay)	31	7 (22.6%)	7 (22.6%)	17 (54.8%)	0 (0.0%)	8	5 (62.5%)
bol (Bolivia)	71	6 (8.5%)	7 (9.9%)	58 (81.7%)	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)	372	6 (1.6%)	85 (22.8%)	280 (75.3%)	1 (0.3%)	53	7 (13.2%)
tha (Thailand)	232	6 (2.6%)	4 (1.7%)	221 (95.3%)	1 (0.4%)	13	4 (30.8%)
ury (Uruguay)	120	6 (5.0%)	10 (8.3%)	103 (85.8%)	1 (0.8%)	7	4 (57.1%)
are (United Arab Emirates)	39	4 (10.3%)	4 (10.3%)	30 (76.9%)	1 (2.6%)	6	3 (50.0%)
swe (Sweden)	48	4 (8.3%)	12 (25.0%)	32 (66.7%)	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)	295	3 (1.0%)	21 (7.1%)	271 (91.9%)	0 (0.0%)	26	3 (11.5%)
mdv (Maldives)	7	3 (42.9%)	1 (14.3%)	3 (42.9%)	0 (0.0%)	2	1 (50.0%)
pol (Poland)	163	3 (1.8%)	12 (7.4%)	148 (90.8%)	0 (0.0%)	23	1 (4.3%)
srb (Serbia)	93	3 (3.2%)	1 (1.1%)	89 (95.7%)	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)	26	2 (7.7%)	3 (11.5%)	21 (80.8%)	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)	41	2 (4.9%)	0 (0.0%)	39 (95.1%)	0 (0.0%)	2	1 (50.0%)
fra (France)	122	2 (1.6%)	33 (27.0%)	87 (71.3%)	0 (0.0%)	19	2 (10.5%)
isr (Israel)	36	2 (5.6%)	3 (8.3%)	31 (86.1%)	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%)
sau (Saudi Arabia)	189	2 (1.1%)	28 (14.8%)	159 (84.1%)	0 (0.0%)	7	2 (28.6%)
sgp (Singapore)	34	2 (5.9%)	12 (35.3%)	20 (58.8%)	0 (0.0%)	8	1 (12.5%)
ago (Angola)	81	1 (1.2%)	1 (1.2%)	79 (97.5%)	0 (0.0%)	7	1 (14.3%)
bel (Belgium)	34	1 (2.9%)	5 (14.7%)	28 (82.4%)	0 (0.0%)	9	1 (11.1%)
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%)
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)	19	1 (5.3%)	7 (36.8%)	11 (57.9%)	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)	49	1 (2.0%)	4 (8.2%)	44 (89.8%)	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%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
tza (Tanzania)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	5	1 (20.0%)
alb (Albania)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	67	0 (0.0%)	12 (17.9%)	55 (82.1%)	0 (0.0%)	15	0 (0.0%)
aze (Azerbaijan)	25	0 (0.0%)	0 (0.0%)	25 (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)	72	0 (0.0%)	15 (20.8%)	57 (79.2%)	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)	5	0 (0.0%)	1 (20.0%)	4 (80.0%)	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)	29	0 (0.0%)	0 (0.0%)	29 (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)	38	0 (0.0%)	12 (31.6%)	26 (68.4%)	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))	3	0 (0.0%)	0 (0.0%)	3 (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%)
kor (South Korea)	78	0 (0.0%)	48 (61.5%)	30 (38.5%)	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)	28	0 (0.0%)	3 (10.7%)	25 (89.3%)	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)	68	0 (0.0%)	1 (1.5%)	67 (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)	3	0 (0.0%)	1 (33.3%)	2 (66.7%)	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)	4	0 (0.0%)	0 (0.0%)	4 (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)	13	0 (0.0%)	2 (15.4%)	11 (84.6%)	0 (0.0%)	4	0 (0.0%)
syc (Seychelles)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	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%)