[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jan 10 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 11 Jan, 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: 972945
Prefixes after maximum aggregation (per Origin AS): 370667
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 470115
Number of IPv4 prefixes with a valid ROA: 519009
Number of IPv4 prefixes with an invalid ROA: 1404
Number of IPv4 prefixes with no ROA: 452532
Total ASes present in the Internet Routing Table: 76550
Prefixes per ASN: 12.71
Origin-only ASes present in the Internet Routing Table: 65493
Origin ASes announcing only one prefix: 26848
Transit ASes present in the Internet Routing Table: 11057
Transit-only ASes present in the Internet Routing Table: 534
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: 1083
Number of instances of unregistered ASNs: 1088
Number of 32-bit ASNs allocated by the RIRs: 46011
Number of 32-bit ASNs visible in the Routing Table: 37650
Prefixes from 32-bit ASNs in the Routing Table: 197395
Number of bogon 32-bit ASNs visible in the Routing Table: 34
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 514
Number of addresses announced to Internet: 3121197056
Equivalent to 186 /8s, 9 /16s and 176 /24s
Percentage of available address space announced: 84.3
Percentage of allocated address space announced: 84.3
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: 318260
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 256742
Total APNIC prefixes after maximum aggregation: 76766
APNIC Deaggregation factor: 3.34
Prefixes being announced from the APNIC address blocks: 248462
Unique aggregates announced from the APNIC address blocks: 102609
APNIC Region origin ASes present in the Internet Routing Table: 14494
APNIC Prefixes per ASN: 17.14
APNIC Region origin ASes announcing only one prefix: 4435
APNIC Region transit ASes present in the Internet Routing Table: 1935
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 48
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9962
Number of APNIC addresses announced to Internet: 757840768
Equivalent to 45 /8s, 43 /16s and 187 /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, 131072-153913
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: 286520
Total ARIN prefixes after maximum aggregation: 126612
ARIN Deaggregation factor: 2.26
Prefixes being announced from the ARIN address blocks: 288393
Unique aggregates announced from the ARIN address blocks: 132570
ARIN Region origin ASes present in the Internet Routing Table: 19209
ARIN Prefixes per ASN: 15.01
ARIN Region origin ASes announcing only one prefix: 6995
ARIN Region transit ASes present in the Internet Routing Table: 2009
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 39
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5112
Number of ARIN addresses announced to Internet: 1348320256
Equivalent to 80 /8s, 93 /16s and 188 /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: 270355
Total RIPE prefixes after maximum aggregation: 130940
RIPE Deaggregation factor: 2.06
Prefixes being announced from the RIPE address blocks: 267312
Unique aggregates announced from the RIPE address blocks: 170400
RIPE Region origin ASes present in the Internet Routing Table: 28827
RIPE Prefixes per ASN: 9.27
RIPE Region origin ASes announcing only one prefix: 12086
RIPE Region transit ASes present in the Internet Routing Table: 3995
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 54
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12191
Number of RIPE addresses announced to Internet: 732935552
Equivalent to 43 /8s, 175 /16s and 181 /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: 123716
Total LACNIC prefixes after maximum aggregation: 29046
LACNIC Deaggregation factor: 4.26
Prefixes being announced from the LACNIC address blocks: 121137
Unique aggregates announced from the LACNIC address blocks: 48860
LACNIC Region origin ASes present in the Internet Routing Table: 11186
LACNIC Prefixes per ASN: 10.83
LACNIC Region origin ASes announcing only one prefix: 2642
LACNIC Region transit ASes present in the Internet Routing Table: 2528
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: 9119
Number of LACNIC addresses announced to Internet: 177513728
Equivalent to 10 /8s, 148 /16s and 165 /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: 34529
Total AfriNIC prefixes after maximum aggregation: 6622
AfriNIC Deaggregation factor: 5.21
Prefixes being announced from the AfriNIC address blocks: 47127
Unique aggregates announced from the AfriNIC address blocks: 15244
AfriNIC Region origin ASes present in the Internet Routing Table: 1910
AfriNIC Prefixes per ASN: 24.67
AfriNIC Region origin ASes announcing only one prefix: 690
AfriNIC Region transit ASes present in the Internet Routing Table: 373
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: 1266
Number of AfriNIC addresses announced to Internet: 104323072
Equivalent to 6 /8s, 55 /16s and 216 /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 10240 8754 92 CHINAMOBILE-CN China Mobile Communication
7545 6197 842 664 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4754 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4080 524 274 BBIL-AP BHARTI Airtel Ltd., IN
7552 3917 1331 25 VIETEL-AS-AP Viettel Group, VN
7713 3676 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3257 1869 101 VNPT-AS-VN VNPT Corp, VN
24560 2820 845 546 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2279 11518 581 KIXS-AS-KR Korea Telecom, KR
4755 2220 434 192 TATACOMM-AS TATA Communications formerly
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 12607 38898 3295 AMAZON-02, US
11492 4693 312 549 CABLEONE, US
174 4184 8761 866 COGENT-174, US
7155 4169 287 85 VIASAT-SP-BACKBONE, US
6327 3615 1320 79 SHAW, CA
22773 3382 3033 185 ASN-CXA-ALL-CCI-22773-RDC, US
749 3262 54895 2509 DNIC-AS-00749, US
16625 2937 1263 2155 AKAMAI-AS, US
396982 2894 3656 440 GOOGLE-CLOUD-PLATFORM, US
7018 2734 23259 1860 ATT-INTERNET4, 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 7664 1709 143 UNI2-AS, ES
39891 4750 290 62 ALJAWWALSTC-AS, SA
20940 3942 3395 129 AKAMAI-ASN1, NL
9009 3768 323 1907 M247, RO
12389 2979 2300 886 ROSTELECOM-AS, RU
34984 2371 360 576 TELLCOM-AS, TR
212238 1875 134 1383 CDNEXT, GB
8452 1630 1852 14 TE-AS TE-AS, EG
13188 1607 100 26 TRIOLAN, UA
62240 1499 99 752 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 11591 3227 604 UNINET, MX
10620 3538 491 953 Telmex Colombia S.A., CO
13999 2532 538 368 Mega Cable, S.A. de C.V., MX
11830 1995 369 64 Instituto Costarricense de Electricidad y
28573 1332 2310 261 Claro NXT Telecomunicacoes Ltda, BR
3816 1329 778 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6503 1170 374 163 Axtel, S.A.B. de C.V., MX
11664 1136 278 33 Techtel LMDS Comunicaciones Interactivas
6147 1113 371 22 Telefonica del Peru S.A.A., PE
22884 1073 98 369 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
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 1669 593 29 RAYA-AS, EG
24863 1645 389 18 LINKdotNET-AS, EG
29571 1585 100 68 ORANGE-COTE-IVOIRE, CI
36992 1425 1518 286 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
36935 1001 521 42 Vodafone-, EG
20011 967 179 271 INTERNET-SOLUTIONS, ZA
37069 832 1083 15 MOBINIL, EG
6713 558 1861 35 IAM-AS, MA
36914 544 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 12607 38898 3295 AMAZON-02, US
8151 11591 3227 604 UNINET, MX
9808 10240 8754 92 CHINAMOBILE-CN China Mobile Communication
12479 7664 1709 143 UNI2-AS, ES
7545 6197 842 664 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4754 4192 76 ERX-CERNET-BKB China Education and Resear
39891 4750 290 62 ALJAWWALSTC-AS, SA
11492 4693 312 549 CABLEONE, US
174 4184 8761 866 COGENT-174, US
7155 4169 287 85 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 11591 10987 UNINET, MX
9808 10240 10148 CHINAMOBILE-CN China Mobile Communications Grou
12479 7664 7521 UNI2-AS, ES
7545 6197 5533 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4750 4688 ALJAWWALSTC-AS, SA
4538 4754 4678 ERX-CERNET-BKB China Education and Research Net
11492 4693 4144 CABLEONE, US
7155 4169 4084 VIASAT-SP-BACKBONE, US
7552 3917 3892 VIETEL-AS-AP Viettel Group, VN
20940 3942 3813 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
400866 UNALLOCATED 2.59.148.0/23 21859 ZEN-ECN, US
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
40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, 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
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
23.132.192.0/24 Origin: 30500 WOLFPAWSERVICES, CA
23.132.192.0/24 Transit: 6939 HURRICANE, US
23.140.16.0/24 Origin: 63371 RESERVED, ZZ
23.140.16.0/24 Transit: 10796 TWC-10796-MIDWEST, US
23.140.48.0/24 Origin: 63371 RESERVED, ZZ
23.140.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.140.176.0/24 Origin: 40676 AS40676, US
23.140.176.0/24 Transit: 7922 COMCAST-7922, 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 /10:42 /11:93 /12:311
/13:591 /14:1220 /15:2153 /16:13993 /17:8319 /18:13792
/19:24799 /20:44705 /21:52466 /22:112381 /23:100787 /24:596567
/25:694 /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 6629 7664 UNI2-AS, ES
8151 5786 11591 UNINET, MX
11492 3555 4693 CABLEONE, US
39891 3441 4750 ALJAWWALSTC-AS, SA
6327 3410 3615 SHAW, CA
7155 3117 4169 VIASAT-SP-BACKBONE, US
22773 2518 3382 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2256 12607 AMAZON-02, US
30036 2227 2565 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2178 3538 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1654 2:1555 3:541 4:9 5:4489 6:165
7:6 8:1556 9:1 11:172 12:1388 13:357
14:2523 15:334 16:270 17:360 18:906 20:449
21:4 22:188 23:7205 24:2733 25:2 27:2610
29:19 31:3061 32:40 34:69 35:177 36:2406
37:4510 38:9123 39:882 40:151 41:4169 42:977
43:2494 44:344 45:18100 46:4940 47:294 49:2013
50:1870 51:587 52:1570 54:307 55:1029 56:8
57:235 58:2278 59:1244 60:1160 61:2791 62:2921
63:1834 64:5409 65:2207 66:4637 67:3016 68:1226
69:3990 70:1104 71:600 72:2859 74:2787 75:1633
76:636 77:2594 78:1847 79:1705 80:2231 81:2032
82:1829 83:1419 84:1810 85:3272 86:983 87:2409
88:1273 89:4329 90:755 91:8316 92:2759 93:2842
94:3845 95:4168 96:1265 97:311 98:1006 99:733
100:71 101:1139 102:3750 103:32307 104:4546 105:747
106:1013 107:2601 108:1192 109:4072 110:2231 111:3348
112:2040 113:1526 114:1935 115:2141 116:2030 117:2740
118:2887 119:1946 120:1886 121:1414 122:2748 123:2169
124:1600 125:2880 126:62 128:1577 129:952 130:1254
131:1868 132:811 133:450 134:1513 135:322 136:1335
137:1145 138:2882 139:1547 140:1537 141:1459 142:1823
143:1592 144:1039 145:465 146:2124 147:2042 148:2590
149:2856 150:1198 151:1611 152:2113 153:500 154:7885
155:1592 156:3397 157:1867 158:1254 159:2443 160:3455
161:1782 162:3621 163:1777 164:1692 165:2157 166:1343
167:1867 168:4106 169:799 170:5071 171:999 172:4010
173:3167 174:916 175:1262 176:3577 177:4928 178:3754
179:2230 180:2542 181:3970 182:3352 183:1833 184:2259
185:21362 186:5067 187:4262 188:4236 189:4142 190:9593
191:1568 192:11230 193:9326 194:7682 195:5432 196:3242
197:3533 198:6128 199:8285 200:8072 201:6319 202:10557
203:10481 204:4601 205:3687 206:4669 207:3610 208:4199
209:5141 210:4780 211:2618 212:4525 213:3749 214:1053
215:48 216:6585 217:3082 218:1383 219:538 220:2107
221:1051 222:846 223:2328
End of report
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