[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Aug 8 18:02:24 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 09 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: 994587
Prefixes after maximum aggregation (per Origin AS): 385540
Deaggregation factor: 2.58
Unique aggregates announced (without unneeded subnets): 489001
Number of IPv4 prefixes with a valid ROA: 555410
Number of IPv4 prefixes with an invalid ROA: 1210
Number of IPv4 prefixes with no ROA: 437967
Total ASes present in the Internet Routing Table: 77222
Prefixes per ASN: 12.88
Origin-only ASes present in the Internet Routing Table: 66053
Origin ASes announcing only one prefix: 26995
Transit ASes present in the Internet Routing Table: 11169
Transit-only ASes present in the Internet Routing Table: 566
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: 1100
Number of instances of unregistered ASNs: 1141
Number of 32-bit ASNs allocated by the RIRs: 47097
Number of 32-bit ASNs visible in the Routing Table: 38785
Prefixes from 32-bit ASNs in the Routing Table: 207320
Number of bogon 32-bit ASNs visible in the Routing Table: 111
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 429
Number of addresses announced to Internet: 3108536448
Equivalent to 185 /8s, 72 /16s and 128 /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: 324530
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 264899
Total APNIC prefixes after maximum aggregation: 78932
APNIC Deaggregation factor: 3.36
Prefixes being announced from the APNIC address blocks: 255770
Unique aggregates announced from the APNIC address blocks: 104966
APNIC Region origin ASes present in the Internet Routing Table: 14795
APNIC Prefixes per ASN: 17.29
APNIC Region origin ASes announcing only one prefix: 4514
APNIC Region transit ASes present in the Internet Routing Table: 1981
Average APNIC Region AS path length visible: 5.5
Max APNIC Region AS path length visible: 36
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10305
Number of APNIC addresses announced to Internet: 750337024
Equivalent to 44 /8s, 185 /16s and 60 /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: 292325
Total ARIN prefixes after maximum aggregation: 132618
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 293841
Unique aggregates announced from the ARIN address blocks: 141819
ARIN Region origin ASes present in the Internet Routing Table: 19268
ARIN Prefixes per ASN: 15.25
ARIN Region origin ASes announcing only one prefix: 7041
ARIN Region transit ASes present in the Internet Routing Table: 2002
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5285
Number of ARIN addresses announced to Internet: 1349499136
Equivalent to 80 /8s, 111 /16s and 185 /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: 277135
Total RIPE prefixes after maximum aggregation: 136618
RIPE Deaggregation factor: 2.03
Prefixes being announced from the RIPE address blocks: 276130
Unique aggregates announced from the RIPE address blocks: 178665
RIPE Region origin ASes present in the Internet Routing Table: 29004
RIPE Prefixes per ASN: 9.52
RIPE Region origin ASes announcing only one prefix: 12073
RIPE Region transit ASes present in the Internet Routing Table: 4043
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: 12633
Number of RIPE addresses announced to Internet: 732113280
Equivalent to 43 /8s, 163 /16s and 41 /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: 124501
Total LACNIC prefixes after maximum aggregation: 29853
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 120811
Unique aggregates announced from the LACNIC address blocks: 49031
LACNIC Region origin ASes present in the Internet Routing Table: 11280
LACNIC Prefixes per ASN: 10.71
LACNIC Region origin ASes announcing only one prefix: 2657
LACNIC Region transit ASes present in the Internet Routing Table: 2556
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 56
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9250
Number of LACNIC addresses announced to Internet: 171209728
Equivalent to 10 /8s, 52 /16s and 116 /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: 34627
Total AfriNIC prefixes after maximum aggregation: 6793
AfriNIC Deaggregation factor: 5.10
Prefixes being announced from the AfriNIC address blocks: 47606
Unique aggregates announced from the AfriNIC address blocks: 14142
AfriNIC Region origin ASes present in the Internet Routing Table: 1950
AfriNIC Prefixes per ASN: 24.41
AfriNIC Region origin ASes announcing only one prefix: 710
AfriNIC Region transit ASes present in the Internet Routing Table: 382
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: 1312
Number of AfriNIC addresses announced to Internet: 105135360
Equivalent to 6 /8s, 68 /16s and 61 /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 12672 8762 117 CHINAMOBILE-CN China Mobile Communication
7545 6140 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4812 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN
7552 3941 1332 27 VIETEL-AS-AP Viettel Group, VN
7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3302 1869 101 VNPT-AS-VN VNPT Corp, VN
56046 2971 812 181 CMNET-JIANGSU-AP China Mobile communicati
24560 2921 864 513 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2308 11519 605 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 13769 41094 5298 AMAZON-02, US
11492 4795 318 661 CABLEONE, US
7155 3859 286 85 VIASAT-SP-BACKBONE, US
6327 3644 1320 82 SHAW, CA
174 3527 8769 850 COGENT-174, US
22773 3336 3029 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3222 54766 2473 DNIC-AS-00749, US
396982 3204 3858 436 GOOGLE-CLOUD-PLATFORM, US
16625 2927 1232 2174 AKAMAI-AS, US
4155 2911 227 1734 USDA-1, 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 7568 1711 153 UNI2-AS, ES
39891 4798 293 63 ALJAWWALSTC-AS, SA
20940 3913 3395 127 AKAMAI-ASN1, NL
9009 3858 366 2175 M247, RO
12389 3118 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical
34984 2404 361 584 TELLCOM-AS, TR
212238 2327 164 1692 CDNEXT, GB
13188 1605 100 37 TRIOLAN, UA
8452 1584 1852 14 TE-AS TE-AS, EG
203020 1519 191 670 HOSTROYALE, IN
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 12321 3271 574 UNINET, MX
10620 3475 472 1052 Telmex Colombia S.A., CO
13999 2527 511 354 Mega Cable, S.A. de C.V., MX
11830 1986 369 64 Instituto Costarricense de Electricidad y
28573 1371 2433 261 Claro NXT Telecomunicacoes Ltda, BR
3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
11664 1210 278 33 Techtel LMDS Comunicaciones Interactivas
6147 1181 371 22 Telefonica del Peru S.A.A., PE
22884 1063 68 369 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1017 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 1770 660 28 RAYA-AS, EG
29571 1484 94 32 ORANGE-COTE-IVOIRE, CI
36992 1417 1494 373 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
24863 1239 389 20 LINKdotNET-AS, EG
37069 1086 1112 11 MOBINIL, EG
36935 972 520 43 Vodafone-, EG
36914 573 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
15399 537 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 13769 41094 5298 AMAZON-02, US
9808 12672 8762 117 CHINAMOBILE-CN China Mobile Communication
8151 12321 3271 574 UNINET, MX
12479 7568 1711 153 UNI2-AS, ES
7545 6140 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4812 4192 76 ERX-CERNET-BKB China Education and Resear
39891 4798 293 63 ALJAWWALSTC-AS, SA
11492 4795 318 661 CABLEONE, US
9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN
7552 3941 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 12672 12555 CHINAMOBILE-CN China Mobile Communications Grou
8151 12321 11747 UNINET, MX
12479 7568 7415 UNI2-AS, ES
7545 6140 5517 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4812 4736 ERX-CERNET-BKB China Education and Research Net
39891 4798 4735 ALJAWWALSTC-AS, SA
9498 4468 4156 BBIL-AP BHARTI Airtel Ltd., IN
11492 4795 4134 CABLEONE, US
7552 3941 3914 VIETEL-AS-AP Viettel Group, VN
20940 3913 3786 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
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D
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
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
23.147.224.0/24 Origin: 27392 639-DATACENTERS, US
23.147.224.0/24 Transit: 3356 LEVEL3, US
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
/13:579 /14:1200 /15:2132 /16:13815 /17:8294 /18:13582
/19:24778 /20:44797 /21:52311 /22:112532 /23:103109 /24:616205
/25:792 /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 6544 12321 UNINET, MX
12479 6529 7568 UNI2-AS, ES
11492 3595 4795 CABLEONE, US
39891 3489 4798 ALJAWWALSTC-AS, SA
6327 3440 3644 SHAW, CA
7155 2818 3859 VIASAT-SP-BACKBONE, US
22773 2489 3336 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2341 13769 AMAZON-02, US
30036 2295 2637 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2195 3475 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1779 2:1504 3:874 4:10 5:4702 6:157
7:6 8:1565 9:2 11:172 12:1336 13:468
14:2622 15:368 16:286 17:379 18:898 20:563
21:4 22:188 23:7766 24:2655 25:2 27:2734
29:19 31:3369 32:38 33:1 34:80 35:262
36:4222 37:4581 38:9535 39:967 40:251 41:4256
42:938 43:2675 44:377 45:18636 46:5086 47:340
49:1892 50:2049 51:589 52:1550 54:324 55:1111
56:11 57:274 58:2103 59:1349 60:1174 61:2890
62:3015 63:1786 64:5565 65:2147 66:4766 67:3090
68:1072 69:3897 70:1039 71:627 72:2861 74:2815
75:1506 76:610 77:2789 78:1898 79:1735 80:2220
81:2072 82:3221 83:1440 84:1925 85:3463 86:1109
87:2391 88:1314 89:4436 90:774 91:8417 92:2749
93:2956 94:4118 95:4429 96:1451 97:311 98:955
99:702 100:71 101:1221 102:3895 103:32238 104:5278
105:758 106:876 107:2654 108:1265 109:4195 110:2239
111:3575 112:2420 113:1579 114:1981 115:2154 116:2073
117:2680 118:2454 119:1944 120:2202 121:1382 122:2813
123:2242 124:1723 125:2913 126:91 128:1592 129:976
130:1305 131:2039 132:784 133:450 134:1589 135:355
136:1471 137:1189 138:2812 139:1595 140:1629 141:1531
142:1923 143:1954 144:1186 145:575 146:2181 147:2065
148:2703 149:2946 150:1280 151:2307 152:2099 153:526
154:7636 155:1863 156:3090 157:1929 158:1374 159:2529
160:3581 161:1905 162:3884 163:2246 164:1879 165:2453
166:1536 167:2025 168:3876 169:782 170:5189 171:999
172:4227 173:3400 174:913 175:1316 176:3737 177:4752
178:3970 179:2313 180:2587 181:4156 182:3589 183:2003
184:2074 185:21601 186:5213 187:4665 188:4269 189:4379
190:9516 191:1495 192:11362 193:9484 194:7787 195:5615
196:3288 197:3188 198:6242 199:8618 200:8211 201:6382
202:10604 203:10609 204:4614 205:3663 206:4559 207:3648
208:4283 209:5165 210:4912 211:2744 212:4595 213:3837
214:1028 215:50 216:6783 217:3275 218:1476 219:566
220:2150 221:1209 222:873 223:2796
End of report
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