[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jan 17 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 18 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: 972495
Prefixes after maximum aggregation (per Origin AS): 371325
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 472125
Number of IPv4 prefixes with a valid ROA: 519086
Number of IPv4 prefixes with an invalid ROA: 1374
Number of IPv4 prefixes with no ROA: 452035
Total ASes present in the Internet Routing Table: 76557
Prefixes per ASN: 12.70
Origin-only ASes present in the Internet Routing Table: 65512
Origin ASes announcing only one prefix: 26845
Transit ASes present in the Internet Routing Table: 11045
Transit-only ASes present in the Internet Routing Table: 530
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 142
Max AS path prepend of ASN (270417) 139
Prefixes from unregistered ASNs in the Routing Table: 1075
Number of instances of unregistered ASNs: 1080
Number of 32-bit ASNs allocated by the RIRs: 46086
Number of 32-bit ASNs visible in the Routing Table: 37677
Prefixes from 32-bit ASNs in the Routing Table: 198117
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: 506
Number of addresses announced to Internet: 3119361152
Equivalent to 185 /8s, 237 /16s and 172 /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: 318096
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 256162
Total APNIC prefixes after maximum aggregation: 76738
APNIC Deaggregation factor: 3.34
Prefixes being announced from the APNIC address blocks: 247988
Unique aggregates announced from the APNIC address blocks: 102483
APNIC Region origin ASes present in the Internet Routing Table: 14486
APNIC Prefixes per ASN: 17.12
APNIC Region origin ASes announcing only one prefix: 4428
APNIC Region transit ASes present in the Internet Routing Table: 1929
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: 9961
Number of APNIC addresses announced to Internet: 757828096
Equivalent to 45 /8s, 43 /16s and 138 /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: 286338
Total ARIN prefixes after maximum aggregation: 126933
ARIN Deaggregation factor: 2.26
Prefixes being announced from the ARIN address blocks: 288133
Unique aggregates announced from the ARIN address blocks: 134340
ARIN Region origin ASes present in the Internet Routing Table: 19211
ARIN Prefixes per ASN: 15.00
ARIN Region origin ASes announcing only one prefix: 7002
ARIN Region transit ASes present in the Internet Routing Table: 2011
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: 5114
Number of ARIN addresses announced to Internet: 1346425088
Equivalent to 80 /8s, 64 /16s and 209 /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: 270674
Total RIPE prefixes after maximum aggregation: 131237
RIPE Deaggregation factor: 2.06
Prefixes being announced from the RIPE address blocks: 267644
Unique aggregates announced from the RIPE address blocks: 170730
RIPE Region origin ASes present in the Internet Routing Table: 28835
RIPE Prefixes per ASN: 9.28
RIPE Region origin ASes announcing only one prefix: 12069
RIPE Region transit ASes present in the Internet Routing Table: 3994
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 43
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12210
Number of RIPE addresses announced to Internet: 733023104
Equivalent to 43 /8s, 177 /16s and 11 /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: 124020
Total LACNIC prefixes after maximum aggregation: 29048
LACNIC Deaggregation factor: 4.27
Prefixes being announced from the LACNIC address blocks: 121423
Unique aggregates announced from the LACNIC address blocks: 48840
LACNIC Region origin ASes present in the Internet Routing Table: 11195
LACNIC Prefixes per ASN: 10.85
LACNIC Region origin ASes announcing only one prefix: 2655
LACNIC Region transit ASes present in the Internet Routing Table: 2521
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 142
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9124
Number of LACNIC addresses announced to Internet: 177503488
Equivalent to 10 /8s, 148 /16s and 125 /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: 34226
Total AfriNIC prefixes after maximum aggregation: 6689
AfriNIC Deaggregation factor: 5.12
Prefixes being announced from the AfriNIC address blocks: 46801
Unique aggregates announced from the AfriNIC address blocks: 15304
AfriNIC Region origin ASes present in the Internet Routing Table: 1913
AfriNIC Prefixes per ASN: 24.46
AfriNIC Region origin ASes announcing only one prefix: 691
AfriNIC Region transit ASes present in the Internet Routing Table: 374
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: 1268
Number of AfriNIC addresses announced to Internet: 104319488
Equivalent to 6 /8s, 55 /16s and 202 /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 10318 8754 92 CHINAMOBILE-CN China Mobile Communication
7545 6198 842 664 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4811 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4109 526 276 BBIL-AP BHARTI Airtel Ltd., IN
7552 3909 1331 25 VIETEL-AS-AP Viettel Group, VN
7713 3676 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3258 1869 101 VNPT-AS-VN VNPT Corp, VN
24560 2822 846 546 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2280 11518 582 KIXS-AS-KR Korea Telecom, KR
4755 2220 434 193 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 12572 38854 3693 AMAZON-02, US
11492 4696 312 551 CABLEONE, US
7155 4176 287 86 VIASAT-SP-BACKBONE, US
174 4109 8763 880 COGENT-174, US
6327 3614 1320 81 SHAW, CA
22773 3383 3033 185 ASN-CXA-ALL-CCI-22773-RDC, US
749 3261 54895 2508 DNIC-AS-00749, US
16625 2932 1261 2150 AKAMAI-AS, US
396982 2899 3657 442 GOOGLE-CLOUD-PLATFORM, US
30036 2579 360 271 MEDIACOM-ENTERPRISE-BUSINESS, 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 7648 1709 143 UNI2-AS, ES
39891 4750 290 62 ALJAWWALSTC-AS, SA
20940 3957 3395 129 AKAMAI-ASN1, NL
9009 3738 321 1901 M247, RO
12389 2982 2301 888 ROSTELECOM-AS, RU
34984 2370 361 579 TELLCOM-AS, TR
212238 1897 136 1402 CDNEXT, GB
8452 1615 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 11620 3228 601 UNINET, MX
10620 3538 491 953 Telmex Colombia S.A., CO
13999 2523 538 373 Mega Cable, S.A. de C.V., MX
11830 1992 369 64 Instituto Costarricense de Electricidad y
28573 1332 2436 261 Claro NXT Telecomunicacoes Ltda, BR
3816 1329 778 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6503 1167 374 163 Axtel, S.A.B. de C.V., MX
11664 1149 278 33 Techtel LMDS Comunicaciones Interactivas
6147 1112 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 1672 601 30 RAYA-AS, EG
24863 1648 389 18 LINKdotNET-AS, EG
29571 1542 97 105 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 557 1861 35 IAM-AS, MA
36914 552 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 12572 38854 3693 AMAZON-02, US
8151 11620 3228 601 UNINET, MX
9808 10318 8754 92 CHINAMOBILE-CN China Mobile Communication
12479 7648 1709 143 UNI2-AS, ES
7545 6198 842 664 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 4696 312 551 CABLEONE, US
7155 4176 287 86 VIASAT-SP-BACKBONE, US
174 4109 8763 880 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 11620 11019 UNINET, MX
9808 10318 10226 CHINAMOBILE-CN China Mobile Communications Grou
12479 7648 7505 UNI2-AS, ES
7545 6198 5534 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4811 4735 ERX-CERNET-BKB China Education and Research Net
39891 4750 4688 ALJAWWALSTC-AS, SA
11492 4696 4145 CABLEONE, US
7155 4176 4090 VIASAT-SP-BACKBONE, US
7552 3909 3884 VIETEL-AS-AP Viettel Group, VN
9498 4109 3833 BBIL-AP BHARTI Airtel Ltd., IN
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
/13:588 /14:1219 /15:2149 /16:13981 /17:8308 /18:13781
/19:24794 /20:44670 /21:52500 /22:112511 /23:100700 /24:596121
/25:695 /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 6612 7648 UNI2-AS, ES
8151 5820 11620 UNINET, MX
11492 3555 4696 CABLEONE, US
39891 3441 4750 ALJAWWALSTC-AS, SA
6327 3410 3614 SHAW, CA
7155 3124 4176 VIASAT-SP-BACKBONE, US
22773 2519 3383 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2251 12572 AMAZON-02, US
30036 2240 2579 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 2:1563 3:547 4:9 5:4473 6:165
7:6 8:1554 9:1 11:172 12:1387 13:354
14:2530 15:334 16:270 17:361 18:901 20:449
21:4 22:188 23:7236 24:2732 25:2 27:2630
29:19 31:3078 32:40 34:70 35:184 36:2412
37:4514 38:9044 39:894 40:150 41:4168 42:969
43:2509 44:347 45:18183 46:4948 47:295 49:2012
50:1864 51:587 52:1571 54:306 55:1027 56:8
57:235 58:2154 59:1246 60:1160 61:2797 62:2925
63:1841 64:5403 65:2200 66:4625 67:3007 68:1166
69:3997 70:1103 71:604 72:2857 74:2780 75:1635
76:635 77:2599 78:1849 79:1713 80:2226 81:2045
82:1864 83:1420 84:1799 85:3271 86:985 87:2436
88:1278 89:4343 90:751 91:8319 92:2753 93:2871
94:3844 95:4157 96:1269 97:309 98:981 99:737
100:71 101:1139 102:3478 103:32324 104:4590 105:751
106:1023 107:2607 108:1195 109:4067 110:2230 111:3389
112:2045 113:1539 114:1936 115:2157 116:2033 117:2699
118:2435 119:1931 120:1889 121:1413 122:2747 123:2166
124:1600 125:2874 126:62 128:1589 129:952 130:1253
131:1866 132:812 133:450 134:1509 135:322 136:1302
137:1150 138:2887 139:1568 140:1520 141:1484 142:1818
143:1607 144:1035 145:469 146:2137 147:2051 148:2583
149:2845 150:1188 151:1634 152:2090 153:499 154:7797
155:1541 156:3389 157:1855 158:1249 159:2440 160:3480
161:1786 162:3641 163:1782 164:1678 165:2158 166:1336
167:1866 168:4124 169:789 170:5084 171:1001 172:4019
173:3177 174:918 175:1265 176:3588 177:4966 178:3768
179:2241 180:2544 181:3961 182:3361 183:1834 184:2259
185:21366 186:5098 187:4347 188:4233 189:4106 190:9580
191:1552 192:11247 193:9359 194:7708 195:5438 196:3197
197:3508 198:6140 199:8301 200:8187 201:6316 202:10546
203:10514 204:4564 205:3687 206:4668 207:3614 208:4209
209:5140 210:4777 211:2621 212:4523 213:3738 214:1049
215:42 216:6582 217:3083 218:1388 219:538 220:2105
221:1053 222:852 223:2328
End of report
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