[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jan 26 18:02:26 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 27 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: 940117
Prefixes after maximum aggregation (per Origin AS): 357735
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 456211
Total ASes present in the Internet Routing Table: 75349
Prefixes per ASN: 12.48
Origin-only ASes present in the Internet Routing Table: 64603
Origin ASes announcing only one prefix: 26556
Transit ASes present in the Internet Routing Table: 10746
Transit-only ASes present in the Internet Routing Table: 499
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 121
Max AS path prepend of ASN (150315) 116
Prefixes from unregistered ASNs in the Routing Table: 1123
Number of instances of unregistered ASNs: 1125
Number of 32-bit ASNs allocated by the RIRs: 43482
Number of 32-bit ASNs visible in the Routing Table: 35776
Prefixes from 32-bit ASNs in the Routing Table: 180692
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: 499
Number of addresses announced to Internet: 3047946240
Equivalent to 181 /8s, 171 /16s and 248 /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: 310463
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 251719
Total APNIC prefixes after maximum aggregation: 72784
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 244588
Unique aggregates announced from the APNIC address blocks: 99925
APNIC Region origin ASes present in the Internet Routing Table: 13942
APNIC Prefixes per ASN: 17.54
APNIC Region origin ASes announcing only one prefix: 4210
APNIC Region transit ASes present in the Internet Routing Table: 1886
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 121
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9307
Number of APNIC addresses announced to Internet: 774890112
Equivalent to 46 /8s, 47 /16s and 226 /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: 274037
Total ARIN prefixes after maximum aggregation: 123967
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 278953
Unique aggregates announced from the ARIN address blocks: 132163
ARIN Region origin ASes present in the Internet Routing Table: 19089
ARIN Prefixes per ASN: 14.61
ARIN Region origin ASes announcing only one prefix: 6959
ARIN Region transit ASes present in the Internet Routing Table: 1960
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4838
Number of ARIN addresses announced to Internet: 1272521472
Equivalent to 75 /8s, 217 /16s and 35 /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: 262397
Total RIPE prefixes after maximum aggregation: 125321
RIPE Deaggregation factor: 2.09
Prefixes being announced from the RIPE address blocks: 256924
Unique aggregates announced from the RIPE address blocks: 161207
RIPE Region origin ASes present in the Internet Routing Table: 28539
RIPE Prefixes per ASN: 9.00
RIPE Region origin ASes announcing only one prefix: 12105
RIPE Region transit ASes present in the Internet Routing Table: 3958
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11560
Number of RIPE addresses announced to Internet: 714349184
Equivalent to 42 /8s, 148 /16s and 26 /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: 120287
Total LACNIC prefixes after maximum aggregation: 28861
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 118962
Unique aggregates announced from the LACNIC address blocks: 49567
LACNIC Region origin ASes present in the Internet Routing Table: 11052
LACNIC Prefixes per ASN: 10.76
LACNIC Region origin ASes announcing only one prefix: 2635
LACNIC Region transit ASes present in the Internet Routing Table: 2389
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: 8905
Number of LACNIC addresses announced to Internet: 178093056
Equivalent to 10 /8s, 157 /16s and 124 /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: 30554
Total AfriNIC prefixes after maximum aggregation: 6079
AfriNIC Deaggregation factor: 5.03
Prefixes being announced from the AfriNIC address blocks: 40191
Unique aggregates announced from the AfriNIC address blocks: 12940
AfriNIC Region origin ASes present in the Internet Routing Table: 1821
AfriNIC Prefixes per ASN: 22.07
AfriNIC Region origin ASes announcing only one prefix: 647
AfriNIC Region transit ASes present in the Internet Routing Table: 350
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: 1166
Number of AfriNIC addresses announced to Internet: 107805696
Equivalent to 6 /8s, 108 /16s and 252 /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 9809 8740 56 CHINAMOBILE-CN China Mobile Communicati
7545 5678 784 686 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4928 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4553 347 25 FPT-AS-AP FPT Telecom Company, VN
7552 3877 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3592 1043 64 TELKOMNET-AS-AP PT Telekomunikasi Indon
9498 3453 499 254 BBIL-AP BHARTI Airtel Ltd., IN
45899 3280 1872 99 VNPT-AS-VN VNPT Corp, VN
24560 2692 860 360 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2300 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 9485 11229 3396 AMAZON-02, US
11492 4576 303 661 CABLEONE, US
7155 4177 288 96 VIASAT-SP-BACKBONE, US
22773 3622 3060 299 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3568 1319 69 SHAW, CA
16625 3230 1417 2312 AKAMAI-AS, US
749 3161 54929 2413 DNIC-AS-00749, US
367 2925 3732 1420 DNIC-ASBLK-00306-00371, US
396982 2747 3639 389 GOOGLE-CLOUD-PLATFORM, US
7018 2520 23621 1586 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 7546 1698 148 UNI2-AS, ES
39891 4658 280 55 ALJAWWALSTC-AS, SA
20940 4001 3396 134 AKAMAI-ASN1, NL
9009 3274 285 1589 M247, RO
12389 2979 2301 912 ROSTELECOM-AS, RU
8551 2809 368 35 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
34984 2325 359 601 TELLCOM-AS, TR
13188 1607 100 26 TRIOLAN, UA
58224 1510 867 579 TCI, IR
8452 1469 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 12343 3381 617 UNINET, MX
10620 3520 496 897 Telmex Colombia S.A., CO
13999 2499 337 640 Mega Cable, S.A. de C.V., MX
11830 2006 369 64 Instituto Costarricense de Electricidad
28573 1341 2319 238 Claro NXT Telecomunicacoes Ltda, BR
3816 1306 787 192 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1237 340 498 Axtel, S.A.B. de C.V., MX
11664 1119 177 422 Techtel LMDS Comunicaciones Interactiva
6147 1089 369 22 Telefonica del Peru S.A.A., PE
22884 1073 116 378 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 1564 389 16 LINKdotNET-AS, EG
24835 1548 545 28 RAYA-AS, EG
36992 1365 1518 282 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
29571 1099 71 53 ORANGE-COTE-IVOIRE, CI
36935 935 521 42 Vodafone-, EG
6713 551 1861 34 IAM-AS, MA
15399 540 56 54 WANANCHI-, KE
36914 537 82 3 KENET-AS, KE
24757 487 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 12343 3381 617 UNINET, MX
9808 9809 8740 56 CHINAMOBILE-CN China Mobile Communicati
16509 9485 11229 3396 AMAZON-02, US
12479 7546 1698 148 UNI2-AS, ES
7545 5678 784 686 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4928 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4658 280 55 ALJAWWALSTC-AS, SA
11492 4576 303 661 CABLEONE, US
18403 4553 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 9809 9753 CHINAMOBILE-CN China Mobile Communications Grou
12479 7546 7398 UNI2-AS, ES
16509 9485 6089 AMAZON-02, US
7545 5678 4992 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4928 4853 ERX-CERNET-BKB China Education and Research Net
39891 4658 4603 ALJAWWALSTC-AS, SA
18403 4553 4528 FPT-AS-AP FPT Telecom Company, VN
7155 4177 4081 VIASAT-SP-BACKBONE, US
11492 4576 3915 CABLEONE, US
20940 4001 3867 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 /15:2069 /16:13454 /17:8255 /18:13818
/19:25075 /20:44448 /21:51949 /22:110886 /23:99179 /24:568011
/25:733 /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 6638 7546 UNI2-AS, ES
8151 6328 12343 UNINET, MX
11492 3490 4576 CABLEONE, US
6327 3373 3568 SHAW, CA
39891 3340 4658 ALJAWWALSTC-AS, SA
7155 3121 4177 VIASAT-SP-BACKBONE, US
22773 2657 3622 ASN-CXA-ALL-CCI-22773-RDC, US
8551 2285 2809 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2129 2472 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2125 3520 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2326 2:1546 3:287 4:5 5:4445 6:163
7:6 8:1534 9:1 11:172 12:1481 13:377
14:2376 15:310 16:203 17:363 18:715 20:350
21:4 22:188 23:6624 24:2709 25:2 27:2554
29:19 31:2549 32:56 34:35 35:123 36:2150
37:4487 38:6029 39:891 40:151 41:4074 42:2212
43:2328 44:326 45:16797 46:4292 47:285 49:1913
50:1905 51:572 52:1593 54:361 55:885 56:5
57:137 58:1996 59:1207 60:1016 61:2586 62:2761
63:1911 64:5531 65:2336 66:4932 67:3055 68:1339
69:4090 70:1197 71:579 72:2936 74:2650 75:1554
76:625 77:2348 78:1838 79:2603 80:2127 81:1897
82:1521 83:1252 84:1645 85:3096 86:770 87:1959
88:1219 89:3970 90:659 91:7932 92:2180 93:2645
94:3604 95:4032 96:1291 97:318 98:1037 99:744
100:96 101:1171 102:3049 103:32536 104:4809 105:600
106:920 107:2753 108:1120 109:4038 110:2150 111:3206
112:2070 113:1789 114:1758 115:1969 116:1977 117:2637
118:2767 119:1947 120:1811 121:1322 122:2644 123:2217
124:1604 125:2837 126:28 128:1521 129:906 130:1075
131:1812 132:824 133:409 134:1709 135:307 136:921
137:1005 138:2775 139:1583 140:1307 141:1345 142:1547
143:1522 144:1011 145:343 146:2002 147:1673 148:2516
149:2474 150:1019 151:1318 152:1975 153:528 154:5623
155:1376 156:2108 157:1432 158:1086 159:2210 160:2597
161:1628 162:3610 163:1662 164:1621 165:2095 166:1076
167:1696 168:3813 169:785 170:4683 171:1011 172:3793
173:3012 174:906 175:1215 176:3635 177:4573 178:3534
179:2236 180:2363 181:3656 182:3464 183:2020 184:2293
185:20557 186:4747 187:4336 188:4017 189:4015 190:9347
191:1466 192:11004 193:8996 194:7364 195:5222 196:3159
197:2662 198:6012 199:7074 200:8076 201:6336 202:10508
203:10117 204:4591 205:3728 206:4436 207:3514 208:4118
209:4937 210:4626 211:2601 212:4239 213:3408 214:1108
215:44 216:6810 217:2767 218:1338 219:588 220:2049
221:1022 222:871 223:2233
End of report
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