[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Aug 29 18:02:27 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 30 Aug, 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: 997601
Prefixes after maximum aggregation (per Origin AS): 387793
Deaggregation factor: 2.57
Unique aggregates announced (without unneeded subnets): 492562
Number of IPv4 prefixes with a valid ROA: 561127
Number of IPv4 prefixes with an invalid ROA: 1345
Number of IPv4 prefixes with no ROA: 435129
Total ASes present in the Internet Routing Table: 77329
Prefixes per ASN: 12.90
Origin-only ASes present in the Internet Routing Table: 66182
Origin ASes announcing only one prefix: 27045
Transit ASes present in the Internet Routing Table: 11147
Transit-only ASes present in the Internet Routing Table: 560
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 59
Max AS path prepend of ASN ( 37447) 54
Prefixes from unregistered ASNs in the Routing Table: 1074
Number of instances of unregistered ASNs: 1112
Number of 32-bit ASNs allocated by the RIRs: 47292
Number of 32-bit ASNs visible in the Routing Table: 38912
Prefixes from 32-bit ASNs in the Routing Table: 209367
Number of bogon 32-bit ASNs visible in the Routing Table: 101
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 449
Number of addresses announced to Internet: 3108160128
Equivalent to 185 /8s, 66 /16s and 194 /24s
Percentage of available address space announced: 84.0
Percentage of allocated address space announced: 84.0
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: 325520
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 266200
Total APNIC prefixes after maximum aggregation: 79430
APNIC Deaggregation factor: 3.35
Prefixes being announced from the APNIC address blocks: 256642
Unique aggregates announced from the APNIC address blocks: 105287
APNIC Region origin ASes present in the Internet Routing Table: 14821
APNIC Prefixes per ASN: 17.32
APNIC Region origin ASes announcing only one prefix: 4516
APNIC Region transit ASes present in the Internet Routing Table: 1972
Average APNIC Region AS path length visible: 5.5
Max APNIC Region AS path length visible: 39
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10345
Number of APNIC addresses announced to Internet: 750854144
Equivalent to 44 /8s, 193 /16s and 32 /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: 292673
Total ARIN prefixes after maximum aggregation: 133240
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 294873
Unique aggregates announced from the ARIN address blocks: 142391
ARIN Region origin ASes present in the Internet Routing Table: 19300
ARIN Prefixes per ASN: 15.28
ARIN Region origin ASes announcing only one prefix: 7063
ARIN Region transit ASes present in the Internet Routing Table: 1995
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5316
Number of ARIN addresses announced to Internet: 1349682176
Equivalent to 80 /8s, 114 /16s and 132 /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: 278364
Total RIPE prefixes after maximum aggregation: 137395
RIPE Deaggregation factor: 2.03
Prefixes being announced from the RIPE address blocks: 277525
Unique aggregates announced from the RIPE address blocks: 179405
RIPE Region origin ASes present in the Internet Routing Table: 29047
RIPE Prefixes per ASN: 9.55
RIPE Region origin ASes announcing only one prefix: 12099
RIPE Region transit ASes present in the Internet Routing Table: 4036
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 49
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12673
Number of RIPE addresses announced to Internet: 732233344
Equivalent to 43 /8s, 164 /16s and 254 /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: 124542
Total LACNIC prefixes after maximum aggregation: 30224
LACNIC Deaggregation factor: 4.12
Prefixes being announced from the LACNIC address blocks: 120759
Unique aggregates announced from the LACNIC address blocks: 49492
LACNIC Region origin ASes present in the Internet Routing Table: 11293
LACNIC Prefixes per ASN: 10.69
LACNIC Region origin ASes announcing only one prefix: 2650
LACNIC Region transit ASes present in the Internet Routing Table: 2548
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 37
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9256
Number of LACNIC addresses announced to Internet: 170773504
Equivalent to 10 /8s, 45 /16s and 204 /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: 34748
Total AfriNIC prefixes after maximum aggregation: 6790
AfriNIC Deaggregation factor: 5.12
Prefixes being announced from the AfriNIC address blocks: 47353
Unique aggregates announced from the AfriNIC address blocks: 15598
AfriNIC Region origin ASes present in the Internet Routing Table: 1958
AfriNIC Prefixes per ASN: 24.18
AfriNIC Region origin ASes announcing only one prefix: 717
AfriNIC Region transit ASes present in the Internet Routing Table: 387
Average AfriNIC Region AS path length visible: 6.1
Max AfriNIC Region AS path length visible: 59
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1322
Number of AfriNIC addresses announced to Internet: 104372224
Equivalent to 6 /8s, 56 /16s and 152 /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 12987 8762 117 CHINAMOBILE-CN China Mobile Communication
7545 6139 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4804 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN
7552 3942 1332 27 VIETEL-AS-AP Viettel Group, VN
7713 3667 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3308 1869 101 VNPT-AS-VN VNPT Corp, VN
56046 2982 812 181 CMNET-JIANGSU-AP China Mobile communicati
24560 2920 864 507 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2318 11520 617 KIXS-AS-KR Korea Telecom, KR
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 14041 40856 5394 AMAZON-02, US
11492 4744 315 801 CABLEONE, US
7155 3859 286 85 VIASAT-SP-BACKBONE, US
6327 3652 1320 82 SHAW, CA
22773 3349 3034 179 ASN-CXA-ALL-CCI-22773-RDC, US
749 3221 54766 2472 DNIC-AS-00749, US
396982 3219 3858 437 GOOGLE-CLOUD-PLATFORM, US
174 3081 8758 839 COGENT-174, US
4155 2959 231 1744 USDA-1, US
16625 2917 1233 2168 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 7505 1711 150 UNI2-AS, ES
39891 4798 293 63 ALJAWWALSTC-AS, SA
20940 3912 3395 127 AKAMAI-ASN1, NL
9009 3872 366 2181 M247, RO
12389 3128 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical
34984 2405 361 586 TELLCOM-AS, TR
212238 2371 169 1726 CDNEXT, GB
203020 1834 221 844 HOSTROYALE, IN
13188 1606 100 34 TRIOLAN, UA
8452 1602 1852 14 TE-AS TE-AS, EG
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 12302 3273 572 UNINET, MX
10620 3486 472 1048 Telmex Colombia S.A., CO
13999 2530 511 347 Mega Cable, S.A. de C.V., MX
11830 1986 369 64 Instituto Costarricense de Electricidad y
28573 1369 2432 266 Claro NXT Telecomunicacoes Ltda, BR
3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
11664 1207 278 33 Techtel LMDS Comunicaciones Interactivas
6147 1180 371 22 Telefonica del Peru S.A.A., PE
22884 1053 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1011 2487 55 TIM SA, 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 1791 660 28 RAYA-AS, EG
29571 1498 94 37 ORANGE-COTE-IVOIRE, CI
36992 1357 1488 362 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
24863 1215 389 20 LINKdotNET-AS, EG
37069 1033 1096 13 MOBINIL, EG
36935 972 521 42 Vodafone-, EG
20011 576 154 212 INTERNET-SOLUTIONS, ZA
36914 572 82 3 KENET-AS, KE
15399 546 57 59 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 14041 40856 5394 AMAZON-02, US
9808 12987 8762 117 CHINAMOBILE-CN China Mobile Communication
8151 12302 3273 572 UNINET, MX
12479 7505 1711 150 UNI2-AS, ES
7545 6139 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4804 4192 76 ERX-CERNET-BKB China Education and Resear
39891 4798 293 63 ALJAWWALSTC-AS, SA
11492 4744 315 801 CABLEONE, US
9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN
7552 3942 1332 27 VIETEL-AS-AP Viettel Group, VN
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 12987 12870 CHINAMOBILE-CN China Mobile Communications Grou
8151 12302 11730 UNINET, MX
12479 7505 7355 UNI2-AS, ES
7545 6139 5523 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4798 4735 ALJAWWALSTC-AS, SA
4538 4804 4728 ERX-CERNET-BKB China Education and Research Net
9498 4468 4156 BBIL-AP BHARTI Airtel Ltd., IN
11492 4744 3943 CABLEONE, US
7552 3942 3915 VIETEL-AS-AP Viettel Group, VN
20940 3912 3785 AKAMAI-ASN1, NL
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
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 3356 LEVEL3, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, 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
14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US
14.192.20.0/22 Transit: 21859 ZEN-ECN, 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 /11:92 /12:298
/13:578 /14:1200 /15:2126 /16:13773 /17:8258 /18:13526
/19:24768 /20:45048 /21:52363 /22:112674 /23:103309 /24:618728
/25:789 /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 6504 12302 UNINET, MX
12479 6456 7505 UNI2-AS, ES
11492 3560 4744 CABLEONE, US
39891 3489 4798 ALJAWWALSTC-AS, SA
6327 3448 3652 SHAW, CA
7155 2818 3859 VIASAT-SP-BACKBONE, US
22773 2501 3349 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2391 14041 AMAZON-02, US
30036 2318 2661 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2206 3486 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1776 2:1513 3:912 4:10 5:4760 6:156
7:6 8:1563 9:4 11:172 12:1250 13:494
14:2641 15:390 16:285 17:386 18:902 20:566
21:4 22:188 23:7839 24:2663 25:2 27:2743
29:19 31:3354 32:32 33:1 34:81 35:265
36:4292 37:4533 38:9378 39:995 40:267 41:4299
42:937 43:2677 44:380 45:18782 46:5118 47:345
49:1989 50:2063 51:591 52:1571 54:348 55:1110
56:11 57:287 58:2162 59:1341 60:1183 61:2876
62:3024 63:1777 64:5602 65:2142 66:4825 67:3090
68:1070 69:3896 70:1038 71:631 72:2865 74:2810
75:1506 76:605 77:2775 78:1902 79:1746 80:2242
81:2088 82:3265 83:1444 84:1919 85:3491 86:1129
87:2374 88:1322 89:4474 90:793 91:8420 92:2768
93:2983 94:4156 95:4433 96:1450 97:311 98:951
99:724 100:71 101:1214 102:3981 103:32265 104:5321
105:753 106:877 107:2657 108:1244 109:4193 110:2236
111:3640 112:2478 113:1573 114:1979 115:2155 116:2078
117:2702 118:2519 119:1955 120:2230 121:1384 122:2824
123:2227 124:1730 125:2916 126:91 128:1569 129:968
130:1290 131:2152 132:782 133:459 134:1616 135:366
136:1478 137:1179 138:2818 139:1590 140:1619 141:1539
142:1902 143:2007 144:1201 145:604 146:2185 147:2106
148:2720 149:2903 150:1254 151:2413 152:2113 153:563
154:7189 155:1976 156:3175 157:1938 158:1475 159:2547
160:3584 161:1939 162:3904 163:2288 164:1908 165:2515
166:1561 167:2062 168:3862 169:782 170:5254 171:996
172:4238 173:3407 174:906 175:1316 176:3794 177:4847
178:4017 179:2306 180:2589 181:4191 182:3625 183:2032
184:2067 185:21621 186:5294 187:4613 188:4307 189:4352
190:9444 191:1533 192:11392 193:9488 194:7794 195:5671
196:3281 197:3229 198:6240 199:8649 200:8223 201:6413
202:10649 203:10591 204:4589 205:3685 206:4522 207:3651
208:4277 209:5220 210:4918 211:2740 212:4642 213:3833
214:1047 215:51 216:6816 217:3289 218:1504 219:565
220:2154 221:1209 222:880 223:2820
End of report
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