[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jun 6 18:02:18 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 07 Jun, 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: 985544
Prefixes after maximum aggregation (per Origin AS): 380660
Deaggregation factor: 2.59
Unique aggregates announced (without unneeded subnets): 482287
Number of IPv4 prefixes with a valid ROA: 543158
Number of IPv4 prefixes with an invalid ROA: 1285
Number of IPv4 prefixes with no ROA: 441101
Total ASes present in the Internet Routing Table: 76957
Prefixes per ASN: 12.81
Origin-only ASes present in the Internet Routing Table: 65879
Origin ASes announcing only one prefix: 26939
Transit ASes present in the Internet Routing Table: 11078
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: 80
Max AS path prepend of ASN ( 37447) 75
Prefixes from unregistered ASNs in the Routing Table: 1002
Number of instances of unregistered ASNs: 1043
Number of 32-bit ASNs allocated by the RIRs: 46622
Number of 32-bit ASNs visible in the Routing Table: 38364
Prefixes from 32-bit ASNs in the Routing Table: 203534
Number of bogon 32-bit ASNs visible in the Routing Table: 108
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 437
Number of addresses announced to Internet: 3110561664
Equivalent to 185 /8s, 103 /16s and 103 /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: 322785
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 259174
Total APNIC prefixes after maximum aggregation: 77874
APNIC Deaggregation factor: 3.33
Prefixes being announced from the APNIC address blocks: 250649
Unique aggregates announced from the APNIC address blocks: 104348
APNIC Region origin ASes present in the Internet Routing Table: 14656
APNIC Prefixes per ASN: 17.10
APNIC Region origin ASes announcing only one prefix: 4468
APNIC Region transit ASes present in the Internet Routing Table: 1952
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 39
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10154
Number of APNIC addresses announced to Internet: 749633280
Equivalent to 44 /8s, 174 /16s and 127 /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: 290497
Total ARIN prefixes after maximum aggregation: 131312
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 292104
Unique aggregates announced from the ARIN address blocks: 139640
ARIN Region origin ASes present in the Internet Routing Table: 19256
ARIN Prefixes per ASN: 15.17
ARIN Region origin ASes announcing only one prefix: 7035
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: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5229
Number of ARIN addresses announced to Internet: 1352633088
Equivalent to 80 /8s, 159 /16s and 139 /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: 274950
Total RIPE prefixes after maximum aggregation: 134582
RIPE Deaggregation factor: 2.04
Prefixes being announced from the RIPE address blocks: 273377
Unique aggregates announced from the RIPE address blocks: 175370
RIPE Region origin ASes present in the Internet Routing Table: 28943
RIPE Prefixes per ASN: 9.45
RIPE Region origin ASes announcing only one prefix: 12072
RIPE Region transit ASes present in the Internet Routing Table: 4006
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 69
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12478
Number of RIPE addresses announced to Internet: 731322496
Equivalent to 43 /8s, 151 /16s and 24 /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: 124484
Total LACNIC prefixes after maximum aggregation: 29564
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 120879
Unique aggregates announced from the LACNIC address blocks: 48935
LACNIC Region origin ASes present in the Internet Routing Table: 11266
LACNIC Prefixes per ASN: 10.73
LACNIC Region origin ASes announcing only one prefix: 2672
LACNIC Region transit ASes present in the Internet Routing Table: 2540
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 75
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9222
Number of LACNIC addresses announced to Internet: 171956736
Equivalent to 10 /8s, 63 /16s and 218 /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: 35437
Total AfriNIC prefixes after maximum aggregation: 6707
AfriNIC Deaggregation factor: 5.28
Prefixes being announced from the AfriNIC address blocks: 48098
Unique aggregates announced from the AfriNIC address blocks: 13602
AfriNIC Region origin ASes present in the Internet Routing Table: 1917
AfriNIC Prefixes per ASN: 25.09
AfriNIC Region origin ASes announcing only one prefix: 692
AfriNIC Region transit ASes present in the Internet Routing Table: 375
Average AfriNIC Region AS path length visible: 6.0
Max AfriNIC Region AS path length visible: 80
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1281
Number of AfriNIC addresses announced to Internet: 104814848
Equivalent to 6 /8s, 63 /16s and 89 /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 11129 8757 102 CHINAMOBILE-CN China Mobile Communication
7545 6179 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4782 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4405 534 308 BBIL-AP BHARTI Airtel Ltd., IN
7552 3913 1332 26 VIETEL-AS-AP Viettel Group, VN
7713 3698 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3287 1869 103 VNPT-AS-VN VNPT Corp, VN
24560 2882 854 530 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2368 11522 627 KIXS-AS-KR Korea Telecom, KR
45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer
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 13645 40828 5212 AMAZON-02, US
11492 4760 316 593 CABLEONE, US
7155 3863 286 85 VIASAT-SP-BACKBONE, US
6327 3632 1320 81 SHAW, CA
174 3352 8746 887 COGENT-174, US
22773 3348 3032 168 ASN-CXA-ALL-CCI-22773-RDC, US
749 3229 54783 2480 DNIC-AS-00749, US
396982 3183 3854 425 GOOGLE-CLOUD-PLATFORM, US
16625 3012 1255 2223 AKAMAI-AS, US
36352 2814 230 856 AS-COLOCROSSING, 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 7684 1714 148 UNI2-AS, ES
39891 4798 293 63 ALJAWWALSTC-AS, SA
20940 3942 3395 127 AKAMAI-ASN1, NL
9009 3913 359 2082 M247, RO
12389 3125 2306 890 ROSTELECOM-AS PJSC Rostelecom. Technical
34984 2391 360 580 TELLCOM-AS, TR
212238 2242 163 1646 CDNEXT, GB
8452 1612 1852 14 TE-AS TE-AS, EG
13188 1606 100 34 TRIOLAN, UA
62240 1414 94 738 CLOUVIDER Clouvider - Global ASN, GB
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 12175 3255 582 UNINET, MX
10620 3499 480 1017 Telmex Colombia S.A., CO
13999 2548 540 363 Mega Cable, S.A. de C.V., MX
11830 1991 369 64 Instituto Costarricense de Electricidad y
28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR
3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1199 371 22 Telefonica del Peru S.A.A., PE
11664 1194 278 33 Techtel LMDS Comunicaciones Interactivas
22884 1061 67 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
6503 1041 373 162 Axtel, S.A.B. de C.V., MX
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 1780 644 27 RAYA-AS, EG
24863 1634 389 17 LINKdotNET-AS, EG
29571 1614 102 33 ORANGE-COTE-IVOIRE, CI
36992 1431 1519 280 ETISALAT-MISR, EG
36903 1247 553 104 MT-MPLS, MA
37069 1107 1100 18 MOBINIL, EG
36935 1050 520 44 Vodafone-, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36914 556 82 3 KENET-AS, KE
15399 541 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 13645 40828 5212 AMAZON-02, US
8151 12175 3255 582 UNINET, MX
9808 11129 8757 102 CHINAMOBILE-CN China Mobile Communication
12479 7684 1714 148 UNI2-AS, ES
7545 6179 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4798 293 63 ALJAWWALSTC-AS, SA
4538 4782 4192 76 ERX-CERNET-BKB China Education and Resear
11492 4760 316 593 CABLEONE, US
9498 4405 534 308 BBIL-AP BHARTI Airtel Ltd., IN
20940 3942 3395 127 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
8151 12175 11593 UNINET, MX
9808 11129 11027 CHINAMOBILE-CN China Mobile Communications Grou
12479 7684 7536 UNI2-AS, ES
7545 6179 5530 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4798 4735 ALJAWWALSTC-AS, SA
4538 4782 4706 ERX-CERNET-BKB China Education and Research Net
11492 4760 4167 CABLEONE, US
9498 4405 4097 BBIL-AP BHARTI Airtel Ltd., IN
7552 3913 3887 VIETEL-AS-AP Viettel Group, VN
20940 3942 3815 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
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
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
396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, 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 33132 CROWNCASTLE-AS33132, 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: 6939 HURRICANE, 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
23.147.240.0/24 Origin: 32302 RESERVED, ZZ
23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE
23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US
23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /12:299
/13:581 /14:1212 /15:2142 /16:13908 /17:8329 /18:13776
/19:24821 /20:44825 /21:52160 /22:112419 /23:102604 /24:607512
/25:793 /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
12479 6603 7684 UNI2-AS, ES
8151 6376 12175 UNINET, MX
11492 3557 4760 CABLEONE, US
39891 3489 4798 ALJAWWALSTC-AS, SA
6327 3427 3632 SHAW, CA
7155 2822 3863 VIASAT-SP-BACKBONE, US
22773 2498 3348 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2388 13645 AMAZON-02, US
30036 2240 2581 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2186 3499 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1728 2:1499 3:807 4:9 5:4678 6:162
7:6 8:1597 9:1 11:172 12:1355 13:438
14:2559 15:360 16:285 17:377 18:919 20:544
21:4 22:188 23:7560 24:2750 25:2 27:2711
29:19 31:3270 32:39 33:1 34:80 35:254
36:3070 37:4602 38:9167 39:911 40:172 41:4203
42:954 43:2578 44:374 45:18568 46:5110 47:320
49:1937 50:1885 51:592 52:1570 54:324 55:1092
56:11 57:264 58:2142 59:1380 60:1171 61:2803
62:2937 63:1803 64:5446 65:2183 66:4633 67:3051
68:1125 69:3862 70:1076 71:629 72:2844 74:2797
75:1508 76:619 77:2714 78:1890 79:1707 80:2225
81:2046 82:3121 83:1449 84:1872 85:3445 86:1077
87:2389 88:1298 89:4398 90:770 91:8377 92:2710
93:2914 94:4054 95:4342 96:1419 97:311 98:979
99:695 100:73 101:1219 102:3832 103:32178 104:5094
105:753 106:1036 107:2656 108:1258 109:4083 110:2246
111:3335 112:2141 113:1535 114:1986 115:2070 116:2059
117:2527 118:2360 119:1932 120:1996 121:1433 122:2782
123:2183 124:1636 125:2894 126:91 128:1585 129:969
130:1308 131:1989 132:785 133:449 134:1541 135:334
136:1345 137:1176 138:2881 139:1577 140:1608 141:1501
142:1904 143:1818 144:1158 145:526 146:2188 147:2115
148:2717 149:2899 150:1249 151:1941 152:2086 153:521
154:7473 155:1733 156:3041 157:1903 158:1320 159:2492
160:3582 161:1845 162:3803 163:2190 164:1865 165:2222
166:1493 167:1940 168:4009 169:793 170:5125 171:1011
172:4434 173:3314 174:918 175:1290 176:3708 177:4736
178:3706 179:2294 180:2629 181:4096 182:3444 183:1855
184:2069 185:21582 186:5146 187:4526 188:4241 189:4296
190:9598 191:1485 192:11308 193:9478 194:7806 195:5548
196:3262 197:3662 198:6208 199:8548 200:8237 201:6355
202:10494 203:10576 204:4570 205:3650 206:4490 207:3584
208:4238 209:5168 210:4853 211:2635 212:4584 213:3737
214:1032 215:48 216:6754 217:3140 218:1413 219:545
220:2091 221:1124 222:855 223:2465
End of report
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