[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Nov 17 18:02:11 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 18 Nov, 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: 935368
Prefixes after maximum aggregation (per Origin AS): 355908
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 454806
Total ASes present in the Internet Routing Table: 75063
Prefixes per ASN: 12.46
Origin-only ASes present in the Internet Routing Table: 64423
Origin ASes announcing only one prefix: 26500
Transit ASes present in the Internet Routing Table: 10640
Transit-only ASes present in the Internet Routing Table: 481
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: 1058
Number of instances of unregistered ASNs: 1060
Number of 32-bit ASNs allocated by the RIRs: 43068
Number of 32-bit ASNs visible in the Routing Table: 35403
Prefixes from 32-bit ASNs in the Routing Table: 177707
Number of bogon 32-bit ASNs visible in the Routing Table: 30
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 533
Number of addresses announced to Internet: 3050179328
Equivalent to 181 /8s, 206 /16s and 11 /24s
Percentage of available address space announced: 82.4
Percentage of allocated address space announced: 82.4
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: 310771
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 248769
Total APNIC prefixes after maximum aggregation: 71647
APNIC Deaggregation factor: 3.47
Prefixes being announced from the APNIC address blocks: 241951
Unique aggregates announced from the APNIC address blocks: 99167
APNIC Region origin ASes present in the Internet Routing Table: 13773
APNIC Prefixes per ASN: 17.57
APNIC Region origin ASes announcing only one prefix: 4141
APNIC Region transit ASes present in the Internet Routing Table: 1854
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: 9105
Number of APNIC addresses announced to Internet: 771745152
Equivalent to 45 /8s, 255 /16s and 229 /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: 273597
Total ARIN prefixes after maximum aggregation: 124288
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 278287
Unique aggregates announced from the ARIN address blocks: 132362
ARIN Region origin ASes present in the Internet Routing Table: 19079
ARIN Prefixes per ASN: 14.59
ARIN Region origin ASes announcing only one prefix: 6971
ARIN Region transit ASes present in the Internet Routing Table: 1964
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: 4827
Number of ARIN addresses announced to Internet: 1277108480
Equivalent to 76 /8s, 31 /16s and 33 /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: 262331
Total RIPE prefixes after maximum aggregation: 124580
RIPE Deaggregation factor: 2.11
Prefixes being announced from the RIPE address blocks: 256858
Unique aggregates announced from the RIPE address blocks: 160709
RIPE Region origin ASes present in the Internet Routing Table: 28479
RIPE Prefixes per ASN: 9.02
RIPE Region origin ASes announcing only one prefix: 12089
RIPE Region transit ASes present in the Internet Routing Table: 3924
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 37
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11440
Number of RIPE addresses announced to Internet: 714984576
Equivalent to 42 /8s, 157 /16s and 204 /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: 119556
Total LACNIC prefixes after maximum aggregation: 28659
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 118379
Unique aggregates announced from the LACNIC address blocks: 49353
LACNIC Region origin ASes present in the Internet Routing Table: 11041
LACNIC Prefixes per ASN: 10.72
LACNIC Region origin ASes announcing only one prefix: 2670
LACNIC Region transit ASes present in the Internet Routing Table: 2334
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: 8882
Number of LACNIC addresses announced to Internet: 178410240
Equivalent to 10 /8s, 162 /16s and 83 /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: 30057
Total AfriNIC prefixes after maximum aggregation: 6022
AfriNIC Deaggregation factor: 4.99
Prefixes being announced from the AfriNIC address blocks: 39360
Unique aggregates announced from the AfriNIC address blocks: 12774
AfriNIC Region origin ASes present in the Internet Routing Table: 1807
AfriNIC Prefixes per ASN: 21.78
AfriNIC Region origin ASes announcing only one prefix: 629
AfriNIC Region transit ASes present in the Internet Routing Table: 346
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1149
Number of AfriNIC addresses announced to Internet: 107500288
Equivalent to 6 /8s, 104 /16s and 83 /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 9736 8730 44 CHINAMOBILE-CN China Mobile Communicati
7545 5701 786 696 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4921 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4280 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3600 1047 70 TELKOMNET-AS-AP PT Telekomunikasi Indon
9498 3262 493 245 BBIL-AP BHARTI Airtel Ltd., IN
45899 3262 1872 99 VNPT-AS-VN VNPT Corp, VN
7552 2982 1330 20 VIETEL-AS-AP Viettel Group, VN
24560 2585 852 376 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2532 11270 600 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 9216 11055 3348 AMAZON-02, US
11492 4556 302 675 CABLEONE, US
7155 4176 288 99 VIASAT-SP-BACKBONE, US
6327 3555 1320 67 SHAW, CA
22773 3512 3055 301 ASN-CXA-ALL-CCI-22773-RDC, US
749 3158 54932 2410 DNIC-AS-00749, US
16625 3046 1381 2291 AKAMAI-AS, US
367 3036 3867 1437 DNIC-ASBLK-00306-00371, US
396982 2723 3631 374 GOOGLE-CLOUD-PLATFORM, US
7018 2512 23615 1589 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 7460 1713 145 UNI2-AS, ES
39891 4570 271 54 ALJAWWALSTC-AS, SA
20940 4009 3397 142 AKAMAI-ASN1, NL
8551 3438 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
9009 3421 297 1590 M247, RO
12389 2958 2295 911 ROSTELECOM-AS, RU
34984 2323 361 590 TELLCOM-AS, TR
58224 1651 910 584 TCI, IR
13188 1607 100 26 TRIOLAN, UA
8452 1523 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 12048 3374 598 UNINET, MX
10620 3525 499 876 Telmex Colombia S.A., CO
13999 2457 335 642 Mega Cable, S.A. de C.V., MX
11830 2003 369 64 Instituto Costarricense de Electricidad
28573 1332 2321 242 Claro NXT Telecomunicacoes Ltda, BR
3816 1299 778 190 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1250 342 505 Axtel, S.A.B. de C.V., MX
6147 1102 369 22 Telefonica del Peru S.A.A., PE
11664 1075 173 437 Techtel LMDS Comunicaciones Interactiva
26615 1039 2502 52 TIM SA, BR
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 1606 393 19 LINKdotNET-AS, EG
24835 1548 545 28 RAYA-AS, EG
36992 1358 1518 280 ETISALAT-MISR, EG
36903 1248 553 98 MT-MPLS, MA
29571 1045 67 53 ORANGE-COTE-IVOIRE, CI
36935 935 521 43 Vodafone-, EG
6713 551 1861 34 IAM-AS, MA
15399 522 54 47 WANANCHI-, KE
24757 480 73 5 EthioNet-AS, ET
37342 476 32 1 MOVITEL, MZ
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 12048 3374 598 UNINET, MX
9808 9736 8730 44 CHINAMOBILE-CN China Mobile Communicati
16509 9216 11055 3348 AMAZON-02, US
12479 7460 1713 145 UNI2-AS, ES
7545 5701 786 696 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4921 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4570 271 54 ALJAWWALSTC-AS, SA
11492 4556 302 675 CABLEONE, US
18403 4280 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4176 288 99 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 9736 9692 CHINAMOBILE-CN China Mobile Communications Grou
12479 7460 7315 UNI2-AS, ES
16509 9216 5868 AMAZON-02, US
7545 5701 5005 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4921 4846 ERX-CERNET-BKB China Education and Research Net
39891 4570 4516 ALJAWWALSTC-AS, SA
18403 4280 4255 FPT-AS-AP FPT Telecom Company, VN
7155 4176 4077 VIASAT-SP-BACKBONE, US
11492 4556 3881 CABLEONE, US
20940 4009 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 11168 SCC, 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
23.189.192.0/24 Origin: 27593 RESERVED, ZZ
23.189.192.0/24 Transit: 174 COGENT-174, 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
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 /12:299
/13:582 /14:1195 /15:2062 /16:13470 /17:8334 /18:13834
/19:25158 /20:44399 /21:51591 /22:110694 /23:99516 /24:563340
/25:727 /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 6549 7460 UNI2-AS, ES
8151 6068 12048 UNINET, MX
11492 3469 4556 CABLEONE, US
6327 3364 3555 SHAW, CA
39891 3324 4570 ALJAWWALSTC-AS, SA
7155 3122 4176 VIASAT-SP-BACKBONE, US
8551 2915 3438 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2565 3512 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2136 2481 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2118 3525 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2254 2:1427 3:272 4:5 5:4379 6:162
7:6 8:1543 9:1 11:172 12:1492 13:365
14:2322 15:304 16:206 17:364 18:669 20:318
21:4 22:188 23:6500 24:2566 25:2 27:2528
29:19 31:2569 32:58 34:31 35:118 36:2021
37:4446 38:5621 39:877 40:149 41:3985 42:2072
43:2320 44:330 45:16801 46:4364 47:373 49:1879
50:1887 51:573 52:1591 54:393 55:863 56:5
57:128 58:1902 59:1172 60:1010 61:2566 62:2706
63:1903 64:5500 65:2345 66:5014 67:3063 68:1348
69:4131 70:1190 71:606 72:2924 74:2637 75:1563
76:627 77:2347 78:1827 79:3016 80:2113 81:1849
82:1515 83:1301 84:1611 85:2990 86:777 87:1952
88:1231 89:3952 90:627 91:7892 92:2146 93:2647
94:3578 95:4000 96:1300 97:315 98:1083 99:736
100:96 101:1149 102:2946 103:32369 104:4773 105:576
106:986 107:2781 108:1134 109:4209 110:2133 111:3180
112:2079 113:1737 114:1717 115:1997 116:1932 117:2481
118:2723 119:1949 120:1805 121:1255 122:2626 123:2229
124:1625 125:2666 128:1486 129:917 130:1058 131:1985
132:825 133:408 134:1706 135:298 136:920 137:987
138:2706 139:1578 140:1330 141:1327 142:1541 143:1525
144:1007 145:343 146:1968 147:1635 148:2462 149:2343
150:1014 151:1252 152:1842 153:524 154:5337 155:1388
156:2103 157:1352 158:1058 159:2208 160:2610 161:1605
162:3558 163:1622 164:1659 165:1856 166:1083 167:1752
168:3862 169:790 170:4660 171:966 172:3801 173:2992
174:957 175:1192 176:3626 177:4544 178:3523 179:2178
180:2265 181:3589 182:3417 183:2005 184:2274 185:20644
186:4755 187:4242 188:4050 189:3976 190:9352 191:1474
192:11024 193:8983 194:7302 195:5213 196:3126 197:2467
198:6022 199:6527 200:8088 201:6252 202:10618 203:10042
204:4561 205:3697 206:4420 207:3517 208:4122 209:4929
210:4519 211:2559 212:4258 213:3405 214:1110 215:71
216:6719 217:2769 218:1324 219:586 220:2029 221:1004
222:866 223:2212
End of report
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