[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 28 18:02:16 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 29 Mar, 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: 980089
Prefixes after maximum aggregation (per Origin AS): 375410
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 476692
Number of IPv4 prefixes with a valid ROA: 533951
Number of IPv4 prefixes with an invalid ROA: 1289
Number of IPv4 prefixes with no ROA: 444849
Total ASes present in the Internet Routing Table: 76772
Prefixes per ASN: 12.77
Origin-only ASes present in the Internet Routing Table: 65730
Origin ASes announcing only one prefix: 26875
Transit ASes present in the Internet Routing Table: 11042
Transit-only ASes present in the Internet Routing Table: 555
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 65
Max AS path prepend of ASN ( 37447) 57
Prefixes from unregistered ASNs in the Routing Table: 1039
Number of instances of unregistered ASNs: 1043
Number of 32-bit ASNs allocated by the RIRs: 46110
Number of 32-bit ASNs visible in the Routing Table: 38041
Prefixes from 32-bit ASNs in the Routing Table: 200390
Number of bogon 32-bit ASNs visible in the Routing Table: 30
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 470
Number of addresses announced to Internet: 3108548352
Equivalent to 185 /8s, 72 /16s and 175 /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: 322024
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 256946
Total APNIC prefixes after maximum aggregation: 76948
APNIC Deaggregation factor: 3.34
Prefixes being announced from the APNIC address blocks: 248687
Unique aggregates announced from the APNIC address blocks: 102751
APNIC Region origin ASes present in the Internet Routing Table: 14582
APNIC Prefixes per ASN: 17.05
APNIC Region origin ASes announcing only one prefix: 4445
APNIC Region transit ASes present in the Internet Routing Table: 1965
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 50
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10065
Number of APNIC addresses announced to Internet: 749451264
Equivalent to 44 /8s, 171 /16s and 184 /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: 289957
Total ARIN prefixes after maximum aggregation: 128840
ARIN Deaggregation factor: 2.25
Prefixes being announced from the ARIN address blocks: 290637
Unique aggregates announced from the ARIN address blocks: 137225
ARIN Region origin ASes present in the Internet Routing Table: 19244
ARIN Prefixes per ASN: 15.10
ARIN Region origin ASes announcing only one prefix: 7028
ARIN Region transit ASes present in the Internet Routing Table: 1994
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: 5174
Number of ARIN addresses announced to Internet: 1350009600
Equivalent to 80 /8s, 119 /16s and 131 /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: 273086
Total RIPE prefixes after maximum aggregation: 132977
RIPE Deaggregation factor: 2.05
Prefixes being announced from the RIPE address blocks: 271282
Unique aggregates announced from the RIPE address blocks: 173822
RIPE Region origin ASes present in the Internet Routing Table: 28881
RIPE Prefixes per ASN: 9.39
RIPE Region origin ASes announcing only one prefix: 12050
RIPE Region transit ASes present in the Internet Routing Table: 4003
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 45
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12350
Number of RIPE addresses announced to Internet: 732242688
Equivalent to 43 /8s, 165 /16s and 35 /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: 124001
Total LACNIC prefixes after maximum aggregation: 29268
LACNIC Deaggregation factor: 4.24
Prefixes being announced from the LACNIC address blocks: 120650
Unique aggregates announced from the LACNIC address blocks: 48828
LACNIC Region origin ASes present in the Internet Routing Table: 11224
LACNIC Prefixes per ASN: 10.75
LACNIC Region origin ASes announcing only one prefix: 2660
LACNIC Region transit ASes present in the Internet Routing Table: 2490
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: 9180
Number of LACNIC addresses announced to Internet: 171669248
Equivalent to 10 /8s, 59 /16s and 119 /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: 35060
Total AfriNIC prefixes after maximum aggregation: 6737
AfriNIC Deaggregation factor: 5.20
Prefixes being announced from the AfriNIC address blocks: 48363
Unique aggregates announced from the AfriNIC address blocks: 13662
AfriNIC Region origin ASes present in the Internet Routing Table: 1910
AfriNIC Prefixes per ASN: 25.32
AfriNIC Region origin ASes announcing only one prefix: 692
AfriNIC Region transit ASes present in the Internet Routing Table: 383
Average AfriNIC Region AS path length visible: 6.0
Max AfriNIC Region AS path length visible: 65
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1272
Number of AfriNIC addresses announced to Internet: 104938752
Equivalent to 6 /8s, 65 /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 10316 8754 94 CHINAMOBILE-CN China Mobile Communication
7545 6218 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4780 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4293 530 278 BBIL-AP BHARTI Airtel Ltd., IN
7552 3871 1332 26 VIETEL-AS-AP Viettel Group, VN
7713 3676 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3278 1869 103 VNPT-AS-VN VNPT Corp, VN
24560 2847 848 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2357 11521 605 KIXS-AS-KR Korea Telecom, KR
45090 2205 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 12938 39643 3971 AMAZON-02, US
11492 4676 310 586 CABLEONE, US
7155 4173 286 83 VIASAT-SP-BACKBONE, US
6327 3623 1320 81 SHAW, CA
174 3549 8766 958 COGENT-174, US
22773 3378 3033 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54879 2505 DNIC-AS-00749, US
16625 3032 1271 2217 AKAMAI-AS, US
396982 2945 3649 459 GOOGLE-CLOUD-PLATFORM, US
36352 2575 213 794 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 7722 1714 145 UNI2-AS, ES
39891 4797 293 62 ALJAWWALSTC-AS, SA
20940 3938 3395 130 AKAMAI-ASN1, NL
9009 3774 326 1963 M247, RO
12389 3042 2303 890 ROSTELECOM-AS, RU
34984 2365 360 583 TELLCOM-AS, TR
212238 2070 147 1527 CDNEXT, GB
8452 1615 1852 14 TE-AS TE-AS, EG
13188 1606 100 34 TRIOLAN, UA
62240 1491 98 749 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 11896 3243 582 UNINET, MX
10620 3522 486 971 Telmex Colombia S.A., CO
13999 2499 538 372 Mega Cable, S.A. de C.V., MX
11830 1991 369 64 Instituto Costarricense de Electricidad y
28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR
3816 1330 782 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1193 371 22 Telefonica del Peru S.A.A., PE
11664 1163 278 33 Techtel LMDS Comunicaciones Interactivas
22884 1051 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
6503 1048 359 174 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 1703 599 30 RAYA-AS, EG
24863 1620 389 18 LINKdotNET-AS, EG
29571 1567 102 23 ORANGE-COTE-IVOIRE, CI
36992 1428 1518 287 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
36935 1006 521 42 Vodafone-, EG
20011 980 183 284 INTERNET-SOLUTIONS, ZA
37069 903 1083 15 MOBINIL, EG
6713 560 1861 35 IAM-AS, MA
36914 546 82 3 KENET-AS, 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 12938 39643 3971 AMAZON-02, US
8151 11896 3243 582 UNINET, MX
9808 10316 8754 94 CHINAMOBILE-CN China Mobile Communication
12479 7722 1714 145 UNI2-AS, ES
7545 6218 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 293 62 ALJAWWALSTC-AS, SA
4538 4780 4192 76 ERX-CERNET-BKB China Education and Resear
11492 4676 310 586 CABLEONE, US
9498 4293 530 278 BBIL-AP BHARTI Airtel Ltd., IN
7155 4173 286 83 VIASAT-SP-BACKBONE, US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
8151 11896 11314 UNINET, MX
9808 10316 10222 CHINAMOBILE-CN China Mobile Communications Grou
12479 7722 7577 UNI2-AS, ES
7545 6218 5562 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 4735 ALJAWWALSTC-AS, SA
4538 4780 4704 ERX-CERNET-BKB China Education and Research Net
11492 4676 4090 CABLEONE, US
7155 4173 4090 VIASAT-SP-BACKBONE, US
9498 4293 4015 BBIL-AP BHARTI Airtel Ltd., IN
7552 3871 3845 VIETEL-AS-AP Viettel Group, VN
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
212032 UNALLOCATED 5.59.105.0/24 35168 TNS-PLUS-CORE, KZ
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D
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
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
23.136.140.0/24 Origin: 11832 BANDB-ROUTING, ZZ
23.136.140.0/24 Transit: 20473 AS-VULTR, 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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, 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 /9:16 /10:41 /11:93 /12:302
/13:582 /14:1217 /15:2146 /16:13979 /17:8360 /18:13833
/19:24837 /20:44549 /21:52243 /22:112488 /23:101572 /24:603016
/25:799 /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 6654 7722 UNI2-AS, ES
8151 6096 11896 UNINET, MX
11492 3529 4676 CABLEONE, US
39891 3489 4797 ALJAWWALSTC-AS, SA
6327 3418 3623 SHAW, CA
7155 3120 4173 VIASAT-SP-BACKBONE, US
22773 2516 3378 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2329 12938 AMAZON-02, US
30036 2218 2559 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2184 3522 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1694 2:1518 3:600 4:6 5:4552 6:163
7:6 8:1555 9:1 11:172 12:1372 13:351
14:2556 15:351 16:279 17:363 18:911 20:446
21:4 22:188 23:7346 24:3024 25:2 27:2686
29:19 31:3223 32:40 34:80 35:204 36:2413
37:4741 38:8899 39:899 40:154 41:4217 42:949
43:2551 44:359 45:18503 46:4927 47:290 49:1993
50:1897 51:591 52:1554 54:301 55:1075 56:11
57:250 58:2132 59:1343 60:1171 61:2790 62:2920
63:1832 64:5489 65:2176 66:4600 67:3022 68:1121
69:3959 70:1111 71:614 72:2850 74:2807 75:1660
76:616 77:2711 78:1860 79:1718 80:2209 81:2014
82:2985 83:1416 84:1821 85:3374 86:1046 87:2402
88:1283 89:4328 90:778 91:8318 92:2799 93:2876
94:4092 95:4274 96:1422 97:313 98:993 99:739
100:71 101:1168 102:3704 103:32205 104:4801 105:749
106:994 107:2590 108:1209 109:4045 110:2232 111:3348
112:2041 113:1532 114:1958 115:2098 116:2037 117:2733
118:2417 119:1926 120:1890 121:1413 122:2751 123:2175
124:1617 125:2883 126:88 128:1567 129:959 130:1275
131:1905 132:781 133:451 134:1528 135:329 136:1280
137:1159 138:2892 139:1618 140:1572 141:1495 142:1822
143:1659 144:1061 145:515 146:2155 147:2097 148:2628
149:2904 150:1250 151:2038 152:2106 153:504 154:7888
155:1617 156:3283 157:1893 158:1267 159:2430 160:3526
161:1929 162:3709 163:1957 164:1696 165:2205 166:1424
167:1886 168:4061 169:797 170:5095 171:1003 172:4466
173:3230 174:911 175:1283 176:3687 177:4765 178:3818
179:2337 180:2579 181:4062 182:3374 183:1808 184:2294
185:21489 186:5119 187:4412 188:4202 189:4209 190:9631
191:1521 192:11186 193:9422 194:7793 195:5534 196:3287
197:3674 198:6194 199:8434 200:8186 201:6300 202:10560
203:10520 204:4546 205:3683 206:4628 207:3559 208:4191
209:5236 210:4802 211:2630 212:4507 213:3757 214:1046
215:48 216:6585 217:3084 218:1381 219:538 220:2087
221:1071 222:850 223:2339
End of report
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