[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Dec 15 18:02:28 UTC 2023
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 16 Dec, 2023
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: 937687
Prefixes after maximum aggregation (per Origin AS): 357483
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 455760
Total ASes present in the Internet Routing Table: 75160
Prefixes per ASN: 12.48
Origin-only ASes present in the Internet Routing Table: 64490
Origin ASes announcing only one prefix: 26529
Transit ASes present in the Internet Routing Table: 10670
Transit-only ASes present in the Internet Routing Table: 471
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 1061
Number of instances of unregistered ASNs: 1063
Number of 32-bit ASNs allocated by the RIRs: 43229
Number of 32-bit ASNs visible in the Routing Table: 35560
Prefixes from 32-bit ASNs in the Routing Table: 178899
Number of bogon 32-bit ASNs visible in the Routing Table: 19
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 521
Number of addresses announced to Internet: 3048297728
Equivalent to 181 /8s, 177 /16s and 85 /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: 310922
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 250111
Total APNIC prefixes after maximum aggregation: 72247
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 243238
Unique aggregates announced from the APNIC address blocks: 99474
APNIC Region origin ASes present in the Internet Routing Table: 13852
APNIC Prefixes per ASN: 17.56
APNIC Region origin ASes announcing only one prefix: 4169
APNIC Region transit ASes present in the Internet Routing Table: 1861
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 32
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9198
Number of APNIC addresses announced to Internet: 770855552
Equivalent to 45 /8s, 242 /16s and 82 /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: 273744
Total ARIN prefixes after maximum aggregation: 124582
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 278526
Unique aggregates announced from the ARIN address blocks: 132774
ARIN Region origin ASes present in the Internet Routing Table: 19076
ARIN Prefixes per ASN: 14.60
ARIN Region origin ASes announcing only one prefix: 6948
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: 4823
Number of ARIN addresses announced to Internet: 1276324864
Equivalent to 76 /8s, 19 /16s and 44 /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: 262512
Total RIPE prefixes after maximum aggregation: 125016
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 256990
Unique aggregates announced from the RIPE address blocks: 160855
RIPE Region origin ASes present in the Internet Routing Table: 28494
RIPE Prefixes per ASN: 9.02
RIPE Region origin ASes announcing only one prefix: 12103
RIPE Region transit ASes present in the Internet Routing Table: 3943
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 39
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11485
Number of RIPE addresses announced to Internet: 714696576
Equivalent to 42 /8s, 153 /16s and 103 /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: 119861
Total LACNIC prefixes after maximum aggregation: 28871
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 118563
Unique aggregates announced from the LACNIC address blocks: 49322
LACNIC Region origin ASes present in the Internet Routing Table: 11052
LACNIC Prefixes per ASN: 10.73
LACNIC Region origin ASes announcing only one prefix: 2668
LACNIC Region transit ASes present in the Internet Routing Table: 2362
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: 8897
Number of LACNIC addresses announced to Internet: 178274560
Equivalent to 10 /8s, 160 /16s and 65 /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: 30398
Total AfriNIC prefixes after maximum aggregation: 6047
AfriNIC Deaggregation factor: 5.03
Prefixes being announced from the AfriNIC address blocks: 39849
Unique aggregates announced from the AfriNIC address blocks: 12908
AfriNIC Region origin ASes present in the Internet Routing Table: 1815
AfriNIC Prefixes per ASN: 21.96
AfriNIC Region origin ASes announcing only one prefix: 641
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: 27
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1157
Number of AfriNIC addresses announced to Internet: 107784192
Equivalent to 6 /8s, 108 /16s and 168 /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 9791 8732 46 CHINAMOBILE-CN China Mobile Communicati
7545 5662 783 678 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4924 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4436 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3596 1043 64 TELKOMNET-AS-AP PT Telekomunikasi Indon
9498 3392 495 254 BBIL-AP BHARTI Airtel Ltd., IN
45899 3267 1872 99 VNPT-AS-VN VNPT Corp, VN
7552 3011 1330 20 VIETEL-AS-AP Viettel Group, VN
24560 2644 854 364 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2485 11259 585 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 9391 11181 3409 AMAZON-02, US
11492 4562 303 680 CABLEONE, US
7155 4176 288 96 VIASAT-SP-BACKBONE, US
6327 3567 1320 69 SHAW, CA
22773 3479 3054 297 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3171 1412 2329 AKAMAI-AS, US
749 3162 54930 2414 DNIC-AS-00749, US
367 2949 3838 1406 DNIC-ASBLK-00306-00371, US
396982 2736 3637 383 GOOGLE-CLOUD-PLATFORM, US
7018 2573 23627 1591 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 7585 1714 146 UNI2-AS, ES
39891 4570 271 54 ALJAWWALSTC-AS, SA
20940 3995 3397 142 AKAMAI-ASN1, NL
9009 3492 300 1631 M247, RO
8551 3356 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2982 2301 911 ROSTELECOM-AS, RU
34984 2326 360 590 TELLCOM-AS, TR
13188 1607 100 26 TRIOLAN, UA
58224 1595 888 593 TCI, IR
8452 1539 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 12135 3379 595 UNINET, MX
10620 3518 496 885 Telmex Colombia S.A., CO
13999 2490 339 634 Mega Cable, S.A. de C.V., MX
11830 2005 369 64 Instituto Costarricense de Electricidad
28573 1345 2318 237 Claro NXT Telecomunicacoes Ltda, BR
3816 1306 787 197 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1245 341 503 Axtel, S.A.B. de C.V., MX
11664 1092 177 432 Techtel LMDS Comunicaciones Interactiva
6147 1085 369 22 Telefonica del Peru S.A.A., PE
22884 1075 116 379 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
24863 1582 389 16 LINKdotNET-AS, EG
24835 1548 545 28 RAYA-AS, EG
36992 1359 1518 280 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
29571 1049 68 52 ORANGE-COTE-IVOIRE, CI
36935 936 521 43 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
36914 534 82 3 KENET-AS, KE
15399 533 55 54 WANANCHI-, KE
24757 476 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 12135 3379 595 UNINET, MX
9808 9791 8732 46 CHINAMOBILE-CN China Mobile Communicati
16509 9391 11181 3409 AMAZON-02, US
12479 7585 1714 146 UNI2-AS, ES
7545 5662 783 678 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4924 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4570 271 54 ALJAWWALSTC-AS, SA
11492 4562 303 680 CABLEONE, US
18403 4436 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4176 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 9791 9745 CHINAMOBILE-CN China Mobile Communications Grou
12479 7585 7439 UNI2-AS, ES
16509 9391 5982 AMAZON-02, US
7545 5662 4984 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4924 4849 ERX-CERNET-BKB China Education and Research Net
39891 4570 4516 ALJAWWALSTC-AS, SA
18403 4436 4411 FPT-AS-AP FPT Telecom Company, VN
7155 4176 4080 VIASAT-SP-BACKBONE, US
11492 4562 3882 CABLEONE, US
20940 3995 3853 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
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
396894 UNALLOCATED 8.28.201.0/24 46887 LIGHTOWER, 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
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
36.255.139.0/24 Origin: 56050 NEW-SHINE-INTERNET-TH 134 Yenchit Road,
36.255.139.0/24 Transit: 58913 HCL-TH 4819 Supapong 3 Alley, Srinakarin
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 /10:38 /11:99 /12:298
/13:582 /14:1193 /15:2063 /16:13460 /17:8281 /18:13835
/19:25158 /20:44434 /21:51668 /22:110804 /23:99672 /24:565340
/25:732 /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 6671 7585 UNI2-AS, ES
8151 6152 12135 UNINET, MX
11492 3476 4562 CABLEONE, US
6327 3371 3567 SHAW, CA
39891 3324 4570 ALJAWWALSTC-AS, SA
7155 3120 4176 VIASAT-SP-BACKBONE, US
8551 2833 3356 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2534 3479 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2137 2483 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2121 3518 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2271 2:1413 3:282 4:5 5:4393 6:162
7:6 8:1536 9:1 11:172 12:1489 13:371
14:2327 15:305 16:207 17:362 18:701 20:343
21:4 22:188 23:6577 24:2605 25:2 27:2509
29:19 31:2540 32:56 34:36 35:119 36:2089
37:4496 38:5735 39:881 40:147 41:4106 42:2143
43:2327 44:327 45:16711 46:4397 47:286 49:1910
50:1893 51:573 52:1595 54:382 55:875 56:5
57:128 58:1926 59:1176 60:1009 61:2569 62:2744
63:1911 64:5488 65:2347 66:5007 67:3038 68:1330
69:4055 70:1172 71:608 72:2932 74:2646 75:1551
76:630 77:2336 78:1821 79:3003 80:2099 81:1874
82:1525 83:1325 84:1630 85:2983 86:788 87:1974
88:1232 89:3948 90:650 91:7889 92:2182 93:2640
94:3588 95:4001 96:1298 97:316 98:1020 99:747
100:95 101:1151 102:3008 103:32517 104:4786 105:600
106:989 107:2760 108:1141 109:4175 110:2140 111:3203
112:2083 113:1777 114:1756 115:1963 116:1952 117:2498
118:2756 119:1949 120:1806 121:1302 122:2655 123:2217
124:1646 125:2782 128:1485 129:920 130:1060 131:1980
132:828 133:411 134:1708 135:295 136:911 137:985
138:2716 139:1568 140:1382 141:1356 142:1542 143:1532
144:1006 145:336 146:1997 147:1648 148:2488 149:2400
150:1013 151:1315 152:1848 153:529 154:5369 155:1377
156:2124 157:1367 158:1088 159:2206 160:2625 161:1615
162:3591 163:1645 164:1632 165:1864 166:1096 167:1750
168:3844 169:791 170:4704 171:975 172:3756 173:3031
174:904 175:1213 176:3606 177:4640 178:3529 179:2237
180:2334 181:3612 182:3446 183:2021 184:2269 185:20488
186:4755 187:4268 188:3999 189:3947 190:9297 191:1492
192:11003 193:9001 194:7348 195:5224 196:3136 197:2643
198:6019 199:6759 200:8070 201:6228 202:10561 203:10067
204:4592 205:3687 206:4459 207:3492 208:4102 209:4941
210:4590 211:2578 212:4212 213:3370 214:1119 215:49
216:6770 217:2771 218:1325 219:587 220:2027 221:1018
222:881 223:2223
End of report
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