[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jan 12 18:02:20 UTC 2024
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 13 Jan, 2024
BGP Table (Global) as seen in Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 938625
Prefixes after maximum aggregation (per Origin AS): 356925
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 455683
Total ASes present in the Internet Routing Table: 75263
Prefixes per ASN: 12.47
Origin-only ASes present in the Internet Routing Table: 64540
Origin ASes announcing only one prefix: 26595
Transit ASes present in the Internet Routing Table: 10723
Transit-only ASes present in the Internet Routing Table: 492
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 1118
Number of instances of unregistered ASNs: 1120
Number of 32-bit ASNs allocated by the RIRs: 43370
Number of 32-bit ASNs visible in the Routing Table: 35692
Prefixes from 32-bit ASNs in the Routing Table: 180042
Number of bogon 32-bit ASNs visible in the Routing Table: 17
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 495
Number of addresses announced to Internet: 3047253248
Equivalent to 181 /8s, 161 /16s and 101 /24s
Percentage of available address space announced: 82.3
Percentage of allocated address space announced: 82.3
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: 310100
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 251179
Total APNIC prefixes after maximum aggregation: 72591
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 244097
Unique aggregates announced from the APNIC address blocks: 99806
APNIC Region origin ASes present in the Internet Routing Table: 13911
APNIC Prefixes per ASN: 17.55
APNIC Region origin ASes announcing only one prefix: 4202
APNIC Region transit ASes present in the Internet Routing Table: 1873
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 34
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9269
Number of APNIC addresses announced to Internet: 774771584
Equivalent to 46 /8s, 46 /16s and 19 /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: 273292
Total ARIN prefixes after maximum aggregation: 123615
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 278201
Unique aggregates announced from the ARIN address blocks: 132052
ARIN Region origin ASes present in the Internet Routing Table: 19063
ARIN Prefixes per ASN: 14.59
ARIN Region origin ASes announcing only one prefix: 6947
ARIN Region transit ASes present in the Internet Routing Table: 1954
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4831
Number of ARIN addresses announced to Internet: 1272481792
Equivalent to 75 /8s, 216 /16s and 136 /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, 393216-401308
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, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 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: 262298
Total RIPE prefixes after maximum aggregation: 125085
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 256857
Unique aggregates announced from the RIPE address blocks: 161066
RIPE Region origin ASes present in the Internet Routing Table: 28507
RIPE Prefixes per ASN: 9.01
RIPE Region origin ASes announcing only one prefix: 12136
RIPE Region transit ASes present in the Internet Routing Table: 3947
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 37
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11516
Number of RIPE addresses announced to Internet: 714365056
Equivalent to 42 /8s, 148 /16s and 88 /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,
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: 120197
Total LACNIC prefixes after maximum aggregation: 28861
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 118897
Unique aggregates announced from the LACNIC address blocks: 49488
LACNIC Region origin ASes present in the Internet Routing Table: 11066
LACNIC Prefixes per ASN: 10.74
LACNIC Region origin ASes announcing only one prefix: 2664
LACNIC Region transit ASes present in the Internet Routing Table: 2384
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 55
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8920
Number of LACNIC addresses announced to Internet: 177540096
Equivalent to 10 /8s, 149 /16s and 12 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 30541
Total AfriNIC prefixes after maximum aggregation: 6047
AfriNIC Deaggregation factor: 5.05
Prefixes being announced from the AfriNIC address blocks: 40078
Unique aggregates announced from the AfriNIC address blocks: 12859
AfriNIC Region origin ASes present in the Internet Routing Table: 1815
AfriNIC Prefixes per ASN: 22.08
AfriNIC Region origin ASes announcing only one prefix: 646
AfriNIC Region transit ASes present in the Internet Routing Table: 351
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 36
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1156
Number of AfriNIC addresses announced to Internet: 107807744
Equivalent to 6 /8s, 109 /16s and 4 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 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 9796 8739 53 CHINAMOBILE-CN China Mobile Communicati
7545 5676 784 687 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4926 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4542 347 25 FPT-AS-AP FPT Telecom Company, VN
7552 3848 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3592 1043 64 TELKOMNET-AS-AP PT Telekomunikasi Indon
9498 3429 498 255 BBIL-AP BHARTI Airtel Ltd., IN
45899 3274 1872 99 VNPT-AS-VN VNPT Corp, VN
24560 2674 859 372 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2303 11258 574 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 9474 11202 3360 AMAZON-02, US
11492 4569 303 660 CABLEONE, US
7155 4177 288 96 VIASAT-SP-BACKBONE, US
6327 3570 1320 70 SHAW, CA
22773 3513 3058 301 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3262 1424 2337 AKAMAI-AS, US
749 3161 54929 2413 DNIC-AS-00749, US
367 2955 3828 1423 DNIC-ASBLK-00306-00371, US
396982 2746 3639 390 GOOGLE-CLOUD-PLATFORM, US
7018 2508 23622 1571 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 7547 1714 146 UNI2-AS, ES
39891 4658 280 55 ALJAWWALSTC-AS, SA
20940 4004 3397 142 AKAMAI-ASN1, NL
9009 3468 298 1632 M247, RO
12389 2977 2301 912 ROSTELECOM-AS, RU
8551 2968 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
34984 2325 359 599 TELLCOM-AS, TR
13188 1607 100 26 TRIOLAN, UA
58224 1515 873 581 TCI, IR
8452 1475 1852 14 TE-AS TE-AS, EG
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 12220 3379 609 UNINET, MX
10620 3523 497 888 Telmex Colombia S.A., CO
13999 2498 340 638 Mega Cable, S.A. de C.V., MX
11830 2006 369 64 Instituto Costarricense de Electricidad
28573 1346 2319 238 Claro NXT Telecomunicacoes Ltda, BR
3816 1306 787 197 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1238 340 499 Axtel, S.A.B. de C.V., MX
11664 1117 179 421 Techtel LMDS Comunicaciones Interactiva
6147 1088 369 22 Telefonica del Peru S.A.A., PE
22884 1074 116 375 TOTAL PLAY TELECOMUNICACIONES SA DE CV,
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 1548 545 28 RAYA-AS, EG
24863 1539 389 16 LINKdotNET-AS, EG
36992 1361 1518 280 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
29571 1081 69 55 ORANGE-COTE-IVOIRE, CI
36935 934 521 43 Vodafone-, EG
6713 552 1861 34 IAM-AS, MA
15399 537 56 54 WANANCHI-, KE
36914 532 82 3 KENET-AS, KE
24757 480 73 5 EthioNet-AS, ET
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
8151 12220 3379 609 UNINET, MX
9808 9796 8739 53 CHINAMOBILE-CN China Mobile Communicati
16509 9474 11202 3360 AMAZON-02, US
12479 7547 1714 146 UNI2-AS, ES
7545 5676 784 687 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4926 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4658 280 55 ALJAWWALSTC-AS, SA
11492 4569 303 660 CABLEONE, US
18403 4542 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4177 288 96 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
9808 9796 9743 CHINAMOBILE-CN China Mobile Communications Grou
12479 7547 7401 UNI2-AS, ES
16509 9474 6114 AMAZON-02, US
7545 5676 4989 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4926 4851 ERX-CERNET-BKB China Education and Research Net
39891 4658 4603 ALJAWWALSTC-AS, SA
18403 4542 4517 FPT-AS-AP FPT Telecom Company, VN
7155 4177 4081 VIASAT-SP-BACKBONE, US
11492 4569 3909 CABLEONE, US
20940 4004 3862 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
65536 DOCUMENT 5.102.30.0/24 65512 -Private Use AS-, ZZ
33492 UNALLOCATED 8.6.184.0/23 33650 COMCAST-33650, US
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, US
19589 UNALLOCATED 8.19.242.0/24 23314 ORLANDOTELCO, US
19589 UNALLOCATED 8.19.248.0/24 23314 ORLANDOTELCO, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, 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
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
23.176.160.0/24 Origin: 397327 RESERVED, ZZ
23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US
23.189.192.0/24 Origin: 27593 RESERVED, ZZ
23.189.192.0/24 Transit: 174 COGENT-174, US
41.57.124.0/22 Origin: 37442 RESERVED, ZZ
41.57.124.0/22 Transit: 37204 TELONE, ZW
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 /10:37 /11:99 /12:300
/13:579 /14:1195 /15:2068 /16:13442 /17:8248 /18:13785
/19:25038 /20:44400 /21:51942 /22:110894 /23:98993 /24:566860
/25:715 /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 6632 7547 UNI2-AS, ES
8151 6223 12220 UNINET, MX
11492 3482 4569 CABLEONE, US
6327 3374 3570 SHAW, CA
39891 3340 4658 ALJAWWALSTC-AS, SA
7155 3121 4177 VIASAT-SP-BACKBONE, US
22773 2554 3513 ASN-CXA-ALL-CCI-22773-RDC, US
8551 2445 2968 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2128 2472 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2126 3523 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2306 2:1472 3:282 4:5 5:4427 6:163
7:6 8:1533 9:1 11:172 12:1486 13:375
14:2375 15:310 16:204 17:363 18:715 20:346
21:4 22:188 23:6608 24:2686 25:2 27:2506
29:19 31:2543 32:56 34:35 35:122 36:2141
37:4490 38:5899 39:888 40:147 41:4149 42:2213
43:2330 44:326 45:16744 46:4322 47:285 49:1910
50:1883 51:574 52:1591 54:366 55:859 56:5
57:130 58:1942 59:1174 60:1012 61:2582 62:2737
63:1907 64:5508 65:2335 66:4973 67:3045 68:1337
69:4082 70:1179 71:579 72:2918 74:2652 75:1555
76:625 77:2343 78:1826 79:2729 80:2129 81:1885
82:1529 83:1315 84:1638 85:3071 86:775 87:1952
88:1228 89:3953 90:661 91:7907 92:2186 93:2634
94:3604 95:4017 96:1289 97:315 98:1015 99:745
100:95 101:1158 102:3043 103:32561 104:4781 105:601
106:919 107:2748 108:1121 109:4068 110:2141 111:3210
112:2086 113:1784 114:1750 115:1991 116:1977 117:2629
118:2774 119:1944 120:1803 121:1321 122:2642 123:2218
124:1597 125:2815 126:28 128:1461 129:914 130:1065
131:1929 132:824 133:410 134:1708 135:305 136:916
137:997 138:2758 139:1580 140:1359 141:1349 142:1545
143:1528 144:1007 145:342 146:1991 147:1654 148:2508
149:2432 150:1019 151:1313 152:1963 153:529 154:5540
155:1368 156:2101 157:1388 158:1080 159:2215 160:2615
161:1623 162:3616 163:1676 164:1626 165:2099 166:1075
167:1703 168:3842 169:796 170:4685 171:1000 172:3785
173:2997 174:898 175:1215 176:3616 177:4620 178:3530
179:2224 180:2352 181:3657 182:3459 183:2016 184:2269
185:20522 186:4796 187:4317 188:4012 189:3983 190:9335
191:1475 192:11030 193:8968 194:7373 195:5227 196:3167
197:2606 198:6004 199:6962 200:8061 201:6259 202:10488
203:10088 204:4593 205:3682 206:4437 207:3490 208:4093
209:4948 210:4612 211:2595 212:4223 213:3395 214:1111
215:44 216:6775 217:2771 218:1344 219:588 220:2044
221:1021 222:868 223:2206
End of report
More information about the sanog
mailing list