[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Sep 5 18:02:33 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 06 Sep, 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: 998150
Prefixes after maximum aggregation (per Origin AS): 388131
Deaggregation factor: 2.57
Unique aggregates announced (without unneeded subnets): 492519
Number of IPv4 prefixes with a valid ROA: 562186
Number of IPv4 prefixes with an invalid ROA: 1418
Number of IPv4 prefixes with no ROA: 434546
Total ASes present in the Internet Routing Table: 77314
Prefixes per ASN: 12.91
Origin-only ASes present in the Internet Routing Table: 66162
Origin ASes announcing only one prefix: 27027
Transit ASes present in the Internet Routing Table: 11152
Transit-only ASes present in the Internet Routing Table: 557
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 93
Max AS path prepend of ASN ( 37447) 54
Prefixes from unregistered ASNs in the Routing Table: 1064
Number of instances of unregistered ASNs: 1102
Number of 32-bit ASNs allocated by the RIRs: 47334
Number of 32-bit ASNs visible in the Routing Table: 38920
Prefixes from 32-bit ASNs in the Routing Table: 209550
Number of bogon 32-bit ASNs visible in the Routing Table: 105
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 448
Number of addresses announced to Internet: 3107747200
Equivalent to 185 /8s, 60 /16s and 117 /24s
Percentage of available address space announced: 83.9
Percentage of allocated address space announced: 83.9
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: 325752
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 266335
Total APNIC prefixes after maximum aggregation: 79502
APNIC Deaggregation factor: 3.35
Prefixes being announced from the APNIC address blocks: 256648
Unique aggregates announced from the APNIC address blocks: 105339
APNIC Region origin ASes present in the Internet Routing Table: 14831
APNIC Prefixes per ASN: 17.30
APNIC Region origin ASes announcing only one prefix: 4525
APNIC Region transit ASes present in the Internet Routing Table: 1973
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: 10358
Number of APNIC addresses announced to Internet: 750755840
Equivalent to 44 /8s, 191 /16s and 160 /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: 292713
Total ARIN prefixes after maximum aggregation: 133274
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 294786
Unique aggregates announced from the ARIN address blocks: 142385
ARIN Region origin ASes present in the Internet Routing Table: 19290
ARIN Prefixes per ASN: 15.28
ARIN Region origin ASes announcing only one prefix: 7046
ARIN Region transit ASes present in the Internet Routing Table: 1993
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 41
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5318
Number of ARIN addresses announced to Internet: 1349289984
Equivalent to 80 /8s, 108 /16s and 136 /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: 278496
Total RIPE prefixes after maximum aggregation: 137632
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 277575
Unique aggregates announced from the RIPE address blocks: 179455
RIPE Region origin ASes present in the Internet Routing Table: 29044
RIPE Prefixes per ASN: 9.56
RIPE Region origin ASes announcing only one prefix: 12093
RIPE Region transit ASes present in the Internet Routing Table: 4044
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: 12674
Number of RIPE addresses announced to Internet: 732095872
Equivalent to 43 /8s, 162 /16s and 229 /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: 124619
Total LACNIC prefixes after maximum aggregation: 30204
LACNIC Deaggregation factor: 4.13
Prefixes being announced from the LACNIC address blocks: 120804
Unique aggregates announced from the LACNIC address blocks: 49330
LACNIC Region origin ASes present in the Internet Routing Table: 11284
LACNIC Prefixes per ASN: 10.71
LACNIC Region origin ASes announcing only one prefix: 2653
LACNIC Region transit ASes present in the Internet Routing Table: 2558
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 93
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9251
Number of LACNIC addresses announced to Internet: 170789888
Equivalent to 10 /8s, 46 /16s and 12 /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: 34923
Total AfriNIC prefixes after maximum aggregation: 6806
AfriNIC Deaggregation factor: 5.13
Prefixes being announced from the AfriNIC address blocks: 47889
Unique aggregates announced from the AfriNIC address blocks: 15620
AfriNIC Region origin ASes present in the Internet Routing Table: 1957
AfriNIC Prefixes per ASN: 24.47
AfriNIC Region origin ASes announcing only one prefix: 710
AfriNIC Region transit ASes present in the Internet Routing Table: 385
Average AfriNIC Region AS path length visible: 6.2
Max AfriNIC Region AS path length visible: 59
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1319
Number of AfriNIC addresses announced to Internet: 104570880
Equivalent to 6 /8s, 59 /16s and 160 /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 12982 8762 117 CHINAMOBILE-CN China Mobile Communication
7545 6139 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4806 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN
7552 3931 1332 27 VIETEL-AS-AP Viettel Group, VN
7713 3656 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3307 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 2321 11520 620 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 14277 40861 5409 AMAZON-02, US
11492 4732 314 822 CABLEONE, US
7155 3859 286 85 VIASAT-SP-BACKBONE, US
6327 3660 1320 82 SHAW, CA
22773 3353 3034 180 ASN-CXA-ALL-CCI-22773-RDC, US
396982 3225 3859 443 GOOGLE-CLOUD-PLATFORM, US
749 3221 54766 2472 DNIC-AS-00749, US
174 3100 8759 837 COGENT-174, US
4155 2976 232 1750 USDA-1, US
16625 2923 1237 2171 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 7488 1711 150 UNI2-AS, ES
39891 4798 293 63 ALJAWWALSTC-AS, SA
20940 3913 3395 127 AKAMAI-ASN1, NL
9009 3891 367 2191 M247, RO
12389 3131 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical
34984 2413 361 586 TELLCOM-AS, TR
212238 2413 171 1747 CDNEXT, GB
203020 1874 225 864 HOSTROYALE, IN
13188 1606 100 34 TRIOLAN, UA
8452 1605 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 12308 3275 572 UNINET, MX
10620 3486 472 1048 Telmex Colombia S.A., CO
13999 2536 511 347 Mega Cable, S.A. de C.V., MX
11830 1989 369 64 Instituto Costarricense de Electricidad y
28573 1370 2433 261 Claro NXT Telecomunicacoes Ltda, BR
3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
11664 1220 278 33 Techtel LMDS Comunicaciones Interactivas
6147 1177 371 22 Telefonica del Peru S.A.A., PE
22884 1056 67 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1012 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 1824 652 28 RAYA-AS, EG
36992 1425 1495 377 ETISALAT-MISR, EG
29571 1371 102 38 ORANGE-COTE-IVOIRE, CI
36903 1250 554 97 MT-MPLS, MA
24863 1245 389 20 LINKdotNET-AS, EG
37069 1085 1096 13 MOBINIL, EG
36935 1066 523 46 Vodafone-, EG
20011 576 154 212 INTERNET-SOLUTIONS, ZA
15399 548 57 59 WANANCHI-, KE
3741 520 725 317 IS, ZA
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 14277 40861 5409 AMAZON-02, US
9808 12982 8762 117 CHINAMOBILE-CN China Mobile Communication
8151 12308 3275 572 UNINET, MX
12479 7488 1711 150 UNI2-AS, ES
7545 6139 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4806 4192 76 ERX-CERNET-BKB China Education and Resear
39891 4798 293 63 ALJAWWALSTC-AS, SA
11492 4732 314 822 CABLEONE, US
9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN
7552 3931 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 12982 12865 CHINAMOBILE-CN China Mobile Communications Grou
8151 12308 11736 UNINET, MX
12479 7488 7338 UNI2-AS, ES
7545 6139 5523 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4798 4735 ALJAWWALSTC-AS, SA
4538 4806 4730 ERX-CERNET-BKB China Education and Research Net
9498 4468 4156 BBIL-AP BHARTI Airtel Ltd., IN
11492 4732 3910 CABLEONE, US
7552 3931 3904 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
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 /15:2128 /16:13767 /17:8263 /18:13511
/19:24788 /20:45092 /21:52325 /22:112741 /23:103351 /24:619156
/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 6513 12308 UNINET, MX
12479 6443 7488 UNI2-AS, ES
11492 3548 4732 CABLEONE, US
39891 3489 4798 ALJAWWALSTC-AS, SA
6327 3456 3660 SHAW, CA
7155 2818 3859 VIASAT-SP-BACKBONE, US
22773 2504 3353 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2408 14277 AMAZON-02, US
30036 2325 2668 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 2:1508 3:932 4:10 5:4768 6:156
7:6 8:1552 9:4 11:172 12:1254 13:557
14:2655 15:394 16:302 17:389 18:903 20:568
21:4 22:188 23:7816 24:2658 25:2 27:2738
29:19 31:3358 32:32 33:1 34:81 35:268
36:4294 37:4529 38:9327 39:998 40:261 41:4235
42:940 43:2673 44:377 45:18859 46:5131 47:346
49:1983 50:2052 51:592 52:1603 54:356 55:1118
56:11 57:285 58:2160 59:1345 60:1183 61:2873
62:3042 63:1780 64:5607 65:2141 66:4843 67:3092
68:1074 69:3892 70:1039 71:629 72:2868 74:2813
75:1504 76:605 77:2781 78:1902 79:1755 80:2240
81:2090 82:3289 83:1456 84:1951 85:3494 86:1099
87:2372 88:1322 89:4478 90:803 91:8395 92:2767
93:2968 94:4176 95:4425 96:1450 97:311 98:950
99:732 100:71 101:1221 102:4008 103:32240 104:5290
105:774 106:877 107:2652 108:1220 109:4200 110:2232
111:3644 112:2474 113:1575 114:1979 115:2180 116:2069
117:2697 118:2535 119:1954 120:2227 121:1387 122:2808
123:2242 124:1734 125:2913 126:91 128:1577 129:971
130:1295 131:2144 132:787 133:460 134:1596 135:366
136:1486 137:1178 138:2802 139:1582 140:1625 141:1546
142:1911 143:2017 144:1223 145:607 146:2185 147:2110
148:2718 149:2910 150:1254 151:2362 152:2116 153:563
154:7271 155:1965 156:3259 157:1941 158:1417 159:2565
160:3578 161:1936 162:3904 163:2292 164:1913 165:2549
166:1565 167:2067 168:3830 169:781 170:5245 171:1001
172:4238 173:3413 174:905 175:1329 176:3802 177:4758
178:4035 179:2303 180:2579 181:4181 182:3660 183:2035
184:2061 185:21632 186:5360 187:4629 188:4304 189:4360
190:9545 191:1521 192:11402 193:9482 194:7800 195:5568
196:3299 197:3239 198:6233 199:8656 200:8218 201:6353
202:10622 203:10601 204:4595 205:3671 206:4541 207:3663
208:4275 209:5222 210:4937 211:2742 212:4673 213:3849
214:1044 215:51 216:6847 217:3290 218:1506 219:566
220:2153 221:1209 222:879 223:2819
End of report
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