[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jan 3 18:02:27 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 04 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: 976148
Prefixes after maximum aggregation (per Origin AS): 370286
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 469798
Number of IPv4 prefixes with a valid ROA: 521160
Number of IPv4 prefixes with an invalid ROA: 1388
Number of IPv4 prefixes with no ROA: 453600
Total ASes present in the Internet Routing Table: 76524
Prefixes per ASN: 12.76
Origin-only ASes present in the Internet Routing Table: 65485
Origin ASes announcing only one prefix: 26819
Transit ASes present in the Internet Routing Table: 11039
Transit-only ASes present in the Internet Routing Table: 539
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: 1074
Number of instances of unregistered ASNs: 1079
Number of 32-bit ASNs allocated by the RIRs: 46008
Number of 32-bit ASNs visible in the Routing Table: 37609
Prefixes from 32-bit ASNs in the Routing Table: 197000
Number of bogon 32-bit ASNs visible in the Routing Table: 35
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 497
Number of addresses announced to Internet: 3117049344
Equivalent to 185 /8s, 202 /16s and 102 /24s
Percentage of available address space announced: 84.2
Percentage of allocated address space announced: 84.2
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: 318020
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 260372
Total APNIC prefixes after maximum aggregation: 76774
APNIC Deaggregation factor: 3.39
Prefixes being announced from the APNIC address blocks: 251736
Unique aggregates announced from the APNIC address blocks: 102546
APNIC Region origin ASes present in the Internet Routing Table: 14499
APNIC Prefixes per ASN: 17.36
APNIC Region origin ASes announcing only one prefix: 4424
APNIC Region transit ASes present in the Internet Routing Table: 1922
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 54
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9958
Number of APNIC addresses announced to Internet: 757504896
Equivalent to 45 /8s, 38 /16s and 155 /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: 287015
Total ARIN prefixes after maximum aggregation: 126612
ARIN Deaggregation factor: 2.27
Prefixes being announced from the ARIN address blocks: 288395
Unique aggregates announced from the ARIN address blocks: 132484
ARIN Region origin ASes present in the Internet Routing Table: 19206
ARIN Prefixes per ASN: 15.02
ARIN Region origin ASes announcing only one prefix: 6974
ARIN Region transit ASes present in the Internet Routing Table: 2020
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: 5106
Number of ARIN addresses announced to Internet: 1344535552
Equivalent to 80 /8s, 35 /16s and 252 /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: 269936
Total RIPE prefixes after maximum aggregation: 130659
RIPE Deaggregation factor: 2.07
Prefixes being announced from the RIPE address blocks: 266923
Unique aggregates announced from the RIPE address blocks: 170014
RIPE Region origin ASes present in the Internet Routing Table: 28806
RIPE Prefixes per ASN: 9.27
RIPE Region origin ASes announcing only one prefix: 12083
RIPE Region transit ASes present in the Internet Routing Table: 3989
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: 12172
Number of RIPE addresses announced to Internet: 733003904
Equivalent to 43 /8s, 176 /16s and 192 /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: 123420
Total LACNIC prefixes after maximum aggregation: 28957
LACNIC Deaggregation factor: 4.26
Prefixes being announced from the LACNIC address blocks: 120887
Unique aggregates announced from the LACNIC address blocks: 48803
LACNIC Region origin ASes present in the Internet Routing Table: 11181
LACNIC Prefixes per ASN: 10.81
LACNIC Region origin ASes announcing only one prefix: 2648
LACNIC Region transit ASes present in the Internet Routing Table: 2512
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: 9109
Number of LACNIC addresses announced to Internet: 177501184
Equivalent to 10 /8s, 148 /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: 34331
Total AfriNIC prefixes after maximum aggregation: 6609
AfriNIC Deaggregation factor: 5.19
Prefixes being announced from the AfriNIC address blocks: 47710
Unique aggregates announced from the AfriNIC address blocks: 15532
AfriNIC Region origin ASes present in the Internet Routing Table: 1905
AfriNIC Prefixes per ASN: 25.04
AfriNIC Region origin ASes announcing only one prefix: 690
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: 65
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1264
Number of AfriNIC addresses announced to Internet: 104244224
Equivalent to 6 /8s, 54 /16s and 164 /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 10106 8754 92 CHINAMOBILE-CN China Mobile Communication
7545 6194 842 663 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4811 4192 76 ERX-CERNET-BKB China Education and Resear
18403 4304 347 23 FPT-AS-AP FPT Telecom Company, VN
9498 4055 524 274 BBIL-AP BHARTI Airtel Ltd., IN
7552 3919 1331 25 VIETEL-AS-AP Viettel Group, VN
7713 3676 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3257 1869 100 VNPT-AS-VN VNPT Corp, VN
24560 2830 845 540 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2279 11518 581 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 12486 37784 3187 AMAZON-02, US
11492 4692 312 552 CABLEONE, US
174 4191 8763 869 COGENT-174, US
7155 4171 287 85 VIASAT-SP-BACKBONE, US
6327 3614 1320 79 SHAW, CA
22773 3391 3035 186 ASN-CXA-ALL-CCI-22773-RDC, US
749 3262 54895 2509 DNIC-AS-00749, US
7018 3236 23512 2054 ATT-INTERNET4, US
16625 2893 1254 2147 AKAMAI-AS, US
396982 2892 3656 438 GOOGLE-CLOUD-PLATFORM, 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 7698 1709 143 UNI2-AS, ES
39891 4750 290 62 ALJAWWALSTC-AS, SA
20940 3916 3395 129 AKAMAI-ASN1, NL
9009 3757 323 1901 M247, RO
12389 2979 2300 886 ROSTELECOM-AS, RU
34984 2369 360 577 TELLCOM-AS, TR
212238 1842 133 1358 CDNEXT, GB
8452 1630 1852 14 TE-AS TE-AS, EG
13188 1607 100 26 TRIOLAN, UA
62240 1498 99 751 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 11530 3227 604 UNINET, MX
10620 3548 494 936 Telmex Colombia S.A., CO
13999 2521 538 373 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 1134 278 33 Techtel LMDS Comunicaciones Interactivas
6147 1116 371 22 Telefonica del Peru S.A.A., PE
22884 1067 98 373 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 1643 389 18 LINKdotNET-AS, EG
29571 1478 93 62 ORANGE-COTE-IVOIRE, CI
36992 1426 1518 287 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 557 1861 35 IAM-AS, MA
36914 535 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 12486 37784 3187 AMAZON-02, US
8151 11530 3227 604 UNINET, MX
9808 10106 8754 92 CHINAMOBILE-CN China Mobile Communication
12479 7698 1709 143 UNI2-AS, ES
7545 6194 842 663 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4811 4192 76 ERX-CERNET-BKB China Education and Resear
39891 4750 290 62 ALJAWWALSTC-AS, SA
11492 4692 312 552 CABLEONE, US
18403 4304 347 23 FPT-AS-AP FPT Telecom Company, VN
174 4191 8763 869 COGENT-174, 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 11530 10926 UNINET, MX
9808 10106 10014 CHINAMOBILE-CN China Mobile Communications Grou
12479 7698 7555 UNI2-AS, ES
7545 6194 5531 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4811 4735 ERX-CERNET-BKB China Education and Research Net
39891 4750 4688 ALJAWWALSTC-AS, SA
18403 4304 4281 FPT-AS-AP FPT Telecom Company, VN
11492 4692 4140 CABLEONE, US
7155 4171 4086 VIASAT-SP-BACKBONE, US
7552 3919 3894 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
400866 UNALLOCATED 2.59.148.0/23 21859 ZEN-ECN, 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
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
23.131.212.0/24 Origin: 140822 ANPHATIDC-VSIS-AS-VN ANPHATIDC, VN
23.131.212.0/24 Transit: 18403 FPT-AS-AP FPT Telecom Company, VN
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
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 /12:310
/13:590 /14:1220 /15:2151 /16:13968 /17:8303 /18:13787
/19:24869 /20:45187 /21:52534 /22:112433 /23:101097 /24:598852
/25:680 /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 6670 7698 UNI2-AS, ES
8151 5725 11530 UNINET, MX
11492 3555 4692 CABLEONE, US
39891 3441 4750 ALJAWWALSTC-AS, SA
6327 3409 3614 SHAW, CA
7155 3119 4171 VIASAT-SP-BACKBONE, US
22773 2525 3391 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2244 12486 AMAZON-02, US
30036 2226 2565 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2178 3548 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2304 2:1548 3:538 4:9 5:4484 6:165
7:6 8:1554 9:1 11:172 12:1392 13:359
14:2513 15:334 16:270 17:361 18:906 20:446
21:4 22:188 23:7192 24:2730 25:2 27:2614
29:19 31:3040 32:40 34:69 35:176 36:2407
37:4504 38:9027 39:881 40:151 41:4154 42:2013
43:2530 44:341 45:18318 46:4959 47:298 49:2012
50:1868 51:587 52:1574 54:315 55:1028 56:8
57:233 58:2284 59:1246 60:1157 61:2814 62:2889
63:1836 64:5413 65:2211 66:4649 67:3023 68:1287
69:3978 70:1109 71:599 72:2860 74:2789 75:1638
76:630 77:2589 78:1849 79:1692 80:2221 81:2034
82:1798 83:1424 84:1810 85:3203 86:977 87:2406
88:1269 89:4313 90:760 91:8303 92:2742 93:2836
94:3845 95:4189 96:1258 97:308 98:1063 99:736
100:72 101:1138 102:3721 103:32491 104:4450 105:747
106:1013 107:2601 108:1193 109:4074 110:2224 111:3336
112:2044 113:1823 114:1940 115:2146 116:2047 117:2682
118:2882 119:1961 120:1884 121:1397 122:2756 123:2180
124:1611 125:2863 126:62 128:1569 129:951 130:1269
131:1847 132:797 133:450 134:1515 135:323 136:1336
137:1143 138:2890 139:1547 140:1521 141:1456 142:1819
143:1587 144:1031 145:433 146:2130 147:2039 148:2577
149:2810 150:1193 151:1552 152:2115 153:500 154:8166
155:1578 156:3531 157:1855 158:1255 159:2445 160:3431
161:1764 162:3619 163:1782 164:1684 165:2154 166:1347
167:1865 168:4103 169:801 170:5053 171:1001 172:4014
173:3192 174:915 175:1265 176:3569 177:4831 178:3749
179:2215 180:2539 181:3978 182:3351 183:2065 184:2254
185:21331 186:5037 187:4217 188:4232 189:4087 190:9600
191:1564 192:11235 193:9309 194:7680 195:5426 196:3242
197:3524 198:6104 199:8297 200:8102 201:6289 202:10618
203:10518 204:4627 205:3711 206:4677 207:3612 208:4199
209:5135 210:4776 211:2612 212:4515 213:3768 214:1054
215:48 216:6602 217:3080 218:1382 219:538 220:2108
221:1050 222:849 223:2307
End of report
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