[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Oct 24 18:03:18 UTC 2025
This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.
Daily listings are sent to bgp-stats at lists.apnic.net.
For historical data, please see https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 25 Oct, 2025
IPv4 BGP Table (Global) as seen at Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 1013536
Prefixes after maximum aggregation (per Origin AS): 393466
Deaggregation factor: 2.58
Unique aggregates announced (without unneeded subnets): 498797
Number of IPv4 prefixes with a valid ROA: 449070
Number of IPv4 prefixes with an invalid ROA: 1360
Number of IPv4 prefixes with no ROA: 563106
Total ASes present in the Internet Routing Table: 77482
Prefixes per ASN: 13.08
Origin-only ASes present in the Internet Routing Table: 66552
Origin ASes announcing only one prefix: 27123
Transit ASes present in the Internet Routing Table: 10930
Transit-only ASes present in the Internet Routing Table: 538
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 57
Max AS path prepend of ASN ( 37447) 53
Prefixes from unregistered ASNs in the Routing Table: 979
Number of instances of unregistered ASNs: 1017
Number of 32-bit ASNs allocated by the RIRs: 47809
Number of 32-bit ASNs visible in the Routing Table: 39198
Prefixes from 32-bit ASNs in the Routing Table: 214172
Number of bogon 32-bit ASNs visible in the Routing Table: 104
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 422
Number of addresses announced to Internet: 3112481792
Equivalent to 185 /8s, 132 /16s and 180 /24s
Percentage of available address space announced: 84.1
Percentage of allocated address space announced: 84.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 331345
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 271460
Total APNIC prefixes after maximum aggregation: 81153
APNIC Deaggregation factor: 3.35
Prefixes being announced from the APNIC address blocks: 260877
Unique aggregates announced from the APNIC address blocks: 106102
APNIC Region origin ASes present in the Internet Routing Table: 14872
APNIC Prefixes per ASN: 17.54
APNIC Region origin ASes announcing only one prefix: 4547
APNIC Region transit ASes present in the Internet Routing Table: 1966
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 34
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10417
Number of APNIC addresses announced to Internet: 752266624
Equivalent to 44 /8s, 214 /16s and 173 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-155961
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 299645
Total ARIN prefixes after maximum aggregation: 135017
ARIN Deaggregation factor: 2.22
Prefixes being announced from the ARIN address blocks: 300473
Unique aggregates announced from the ARIN address blocks: 144676
ARIN Region origin ASes present in the Internet Routing Table: 19365
ARIN Prefixes per ASN: 15.52
ARIN Region origin ASes announcing only one prefix: 7095
ARIN Region transit ASes present in the Internet Routing Table: 1950
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5386
Number of ARIN addresses announced to Internet: 1352400384
Equivalent to 80 /8s, 155 /16s and 254 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8,
67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8,
74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8,
100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8,
131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8,
139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8,
148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8,
159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8,
167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8,
184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8,
207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 280817
Total RIPE prefixes after maximum aggregation: 139037
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 280907
Unique aggregates announced from the RIPE address blocks: 181512
RIPE Region origin ASes present in the Internet Routing Table: 29087
RIPE Prefixes per ASN: 9.66
RIPE Region origin ASes announcing only one prefix: 12091
RIPE Region transit ASes present in the Internet Routing Table: 3952
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12775
Number of RIPE addresses announced to Internet: 733258368
Equivalent to 43 /8s, 180 /16s and 162 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8,
185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 125493
Total LACNIC prefixes after maximum aggregation: 30705
LACNIC Deaggregation factor: 4.09
Prefixes being announced from the LACNIC address blocks: 121594
Unique aggregates announced from the LACNIC address blocks: 49424
LACNIC Region origin ASes present in the Internet Routing Table: 11313
LACNIC Prefixes per ASN: 10.75
LACNIC Region origin ASes announcing only one prefix: 2674
LACNIC Region transit ASes present in the Internet Routing Table: 2528
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 38
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9282
Number of LACNIC addresses announced to Internet: 170681088
Equivalent to 10 /8s, 44 /16s and 99 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 35142
Total AfriNIC prefixes after maximum aggregation: 6883
AfriNIC Deaggregation factor: 5.11
Prefixes being announced from the AfriNIC address blocks: 49263
Unique aggregates announced from the AfriNIC address blocks: 16710
AfriNIC Region origin ASes present in the Internet Routing Table: 1975
AfriNIC Prefixes per ASN: 24.94
AfriNIC Region origin ASes announcing only one prefix: 716
AfriNIC Region transit ASes present in the Internet Routing Table: 378
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 57
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1338
Number of AfriNIC addresses announced to Internet: 103654656
Equivalent to 6 /8s, 45 /16s and 165 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9808 13382 8760 120 CHINAMOBILE-CN China Mobile Communication
7545 6129 834 592 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4959 4193 77 ERX-CERNET-BKB China Education and Resear
9498 4480 537 314 BBIL-AP BHARTI Airtel Ltd., IN
7552 3983 1332 28 VIETEL-AS-AP Viettel Group, VN
7713 3718 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3310 1869 99 VNPT-AS-VN VNPT Corp, VN
56046 3236 827 182 CMNET-JIANGSU-AP China Mobile communicati
24560 2937 863 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
9304 2506 516 1611 HUTCHISON-AS-AP HGC Global Communications
Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 14366 41104 5384 AMAZON-02, US
11492 4772 316 803 CABLEONE, US
22773 4288 3086 367 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3860 286 85 VIASAT-SP-BACKBONE, US
6327 3686 1320 82 SHAW, CA
396982 3278 4826 469 GOOGLE-CLOUD-PLATFORM, US
749 3217 54766 2468 DNIC-AS-00749, US
4155 3129 235 1750 USDA-1, US
174 3003 8766 829 COGENT-174, US
16625 2877 1225 2155 AKAMAI-AS, US
Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 7352 1711 149 UNI2-AS, ES
39891 4833 298 66 ALJAWWALSTC-AS, SA
9009 3989 377 2273 M247, RO
20940 3906 3395 126 AKAMAI-ASN1, NL
12389 3156 2315 868 ROSTELECOM-AS PJSC Rostelecom. Technical
212238 2501 176 1810 CDNEXT, GB
34984 2416 363 577 TELLCOM-AS, TR
203020 1721 205 1005 HOSTROYALE, IN
8452 1675 1852 13 TE-AS TE-AS, EG
13188 1607 100 27 TRIOLAN, UA
Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 12434 3271 579 UNINET, MX
10620 3456 463 1099 Telmex Colombia S.A., CO
13999 2510 510 349 Mega Cable, S.A. de C.V., MX
11830 1990 369 64 Instituto Costarricense de Electricidad y
28573 1373 2433 261 Claro NXT Telecomunicacoes Ltda, BR
3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1280 371 23 Telefonica del Peru S.A.A., PE
22884 1059 67 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1024 2486 56 TIM SA, BR
18881 913 1127 31 TELEFONICA BRASIL S.A, BR
Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24835 1925 630 32 RAYA-AS, EG
36992 1513 1498 386 ETISALAT-MISR, EG
24863 1263 389 20 LINKdotNET-AS, EG
36903 1250 554 97 MT-MPLS, MA
29571 1189 102 52 ORANGE-COTE-IVOIRE, CI
36935 1101 521 44 Vodafone-, EG
37069 1085 1096 13 MOBINIL, EG
20011 580 154 212 NTT-DATA-Inc, ZA
36914 575 82 3 KENET-AS, KE
15399 547 57 56 WANANCHI-, KE
Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 14366 41104 5384 AMAZON-02, US
9808 13382 8760 120 CHINAMOBILE-CN China Mobile Communication
8151 12434 3271 579 UNINET, MX
12479 7352 1711 149 UNI2-AS, ES
7545 6129 834 592 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4959 4193 77 ERX-CERNET-BKB China Education and Resear
39891 4833 298 66 ALJAWWALSTC-AS, SA
11492 4772 316 803 CABLEONE, US
9498 4480 537 314 BBIL-AP BHARTI Airtel Ltd., IN
22773 4288 3086 367 ASN-CXA-ALL-CCI-22773-RDC, US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 13382 13262 CHINAMOBILE-CN China Mobile Communications Grou
8151 12434 11855 UNINET, MX
12479 7352 7203 UNI2-AS, ES
7545 6129 5537 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4959 4882 ERX-CERNET-BKB China Education and Research Net
39891 4833 4767 ALJAWWALSTC-AS, SA
9498 4480 4166 BBIL-AP BHARTI Airtel Ltd., IN
11492 4772 3969 CABLEONE, US
7552 3983 3955 VIETEL-AS-AP Viettel Group, VN
22773 4288 3921 ASN-CXA-ALL-CCI-22773-RDC, US
Complete listing at https://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US
397015 UNALLOCATED 8.44.246.0/24 3356 LEVEL3, US
13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US
Complete listing at https://thyme.apnic.net/current/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://thyme.apnic.net/current/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.135.216.0/24 Origin: 400565 RESERVED, ZZ
23.135.216.0/24 Transit: 3356 LEVEL3, US
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA
23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US
23.147.240.0/24 Origin: 32302 RESERVED, ZZ
23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE
Complete listing at https://thyme.apnic.net/current/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:14 /10:41 /11:93 /12:300
/13:581 /14:1196 /15:2124 /16:13804 /17:8310 /18:13571
/19:24941 /20:45274 /21:52560 /22:113276 /23:104754 /24:631897
/25:784 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 6653 12434 UNINET, MX
12479 6311 7352 UNI2-AS, ES
11492 3586 4772 CABLEONE, US
39891 3521 4833 ALJAWWALSTC-AS, SA
6327 3474 3686 SHAW, CA
7155 2819 3860 VIASAT-SP-BACKBONE, US
22773 2627 4288 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2426 14366 AMAZON-02, US
30036 2295 2637 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2211 3456 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1796 2:1534 3:947 4:10 5:4821 6:170
7:6 8:1536 9:6 11:172 12:1240 13:543
14:2693 15:402 16:303 17:387 18:907 20:579
21:4 22:188 23:8058 24:2561 25:2 27:2730
29:19 31:3351 32:33 33:1 34:84 35:278
36:4501 37:4553 38:9547 39:1099 40:472 41:4382
42:949 43:2738 44:397 45:19207 46:5191 47:373
49:2099 50:2048 51:598 52:1629 54:355 55:1058
56:11 57:290 58:2193 59:1362 60:1190 61:2925
62:3095 63:1764 64:5842 65:2135 66:5621 67:3142
68:1476 69:4118 70:1044 71:631 72:2990 74:2866
75:1509 76:601 77:2771 78:1901 79:1751 80:2262
81:2140 82:3480 83:1477 84:1994 85:3578 86:1098
87:2384 88:1333 89:4522 90:812 91:8394 92:2817
93:2979 94:4168 95:4499 96:1474 97:313 98:948
99:754 100:71 101:1221 102:4186 103:32194 104:5453
105:768 106:897 107:2776 108:1212 109:4232 110:2254
111:3891 112:2726 113:1594 114:2073 115:2205 116:2091
117:3036 118:2527 119:2031 120:2349 121:1539 122:2829
123:2262 124:1728 125:2917 126:124 128:1572 129:968
130:1442 131:2173 132:798 133:461 134:1623 135:365
136:1488 137:1201 138:2823 139:1578 140:1696 141:1555
142:2214 143:2090 144:1289 145:629 146:2186 147:2132
148:2758 149:2896 150:1286 151:2625 152:2218 153:581
154:7963 155:2195 156:3217 157:1992 158:1452 159:2610
160:3624 161:2003 162:3977 163:2304 164:1950 165:2556
166:1522 167:2113 168:3807 169:779 170:5402 171:1059
172:4466 173:3441 174:906 175:1335 176:3761 177:4749
178:4325 179:2271 180:2751 181:4305 182:3750 183:2351
184:2067 185:21645 186:5372 187:4697 188:4389 189:4429
190:9748 191:1578 192:11415 193:9501 194:7846 195:5593
196:3275 197:3243 198:6269 199:8846 200:8233 201:6367
202:10688 203:10551 204:4657 205:3698 206:4399 207:3877
208:4287 209:5424 210:4943 211:2777 212:4928 213:3926
214:1039 215:53 216:7138 217:3355 218:1628 219:572
220:2198 221:1258 222:886 223:3122
End of report
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