[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Oct 13 18:02:08 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 14 Oct, 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: 932715
Prefixes after maximum aggregation (per Origin AS): 354045
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 453796
Total ASes present in the Internet Routing Table: 74910
Prefixes per ASN: 12.45
Origin-only ASes present in the Internet Routing Table: 64286
Origin ASes announcing only one prefix: 26511
Transit ASes present in the Internet Routing Table: 10624
Transit-only ASes present in the Internet Routing Table: 457
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: 991
Number of instances of unregistered ASNs: 994
Number of 32-bit ASNs allocated by the RIRs: 42829
Number of 32-bit ASNs visible in the Routing Table: 35227
Prefixes from 32-bit ASNs in the Routing Table: 176097
Number of bogon 32-bit ASNs visible in the Routing Table: 33
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 522
Number of addresses announced to Internet: 3052395776
Equivalent to 181 /8s, 239 /16s and 221 /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: 99.5
Total number of prefixes smaller than registry allocations: 310528
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 247475
Total APNIC prefixes after maximum aggregation: 71042
APNIC Deaggregation factor: 3.48
Prefixes being announced from the APNIC address blocks: 240913
Unique aggregates announced from the APNIC address blocks: 98990
APNIC Region origin ASes present in the Internet Routing Table: 13684
APNIC Prefixes per ASN: 17.61
APNIC Region origin ASes announcing only one prefix: 4120
APNIC Region transit ASes present in the Internet Routing Table: 1815
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9008
Number of APNIC addresses announced to Internet: 771669632
Equivalent to 45 /8s, 254 /16s and 190 /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: 273641
Total ARIN prefixes after maximum aggregation: 123850
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 277405
Unique aggregates announced from the ARIN address blocks: 132133
ARIN Region origin ASes present in the Internet Routing Table: 19099
ARIN Prefixes per ASN: 14.52
ARIN Region origin ASes announcing only one prefix: 6960
ARIN Region transit ASes present in the Internet Routing Table: 1975
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4827
Number of ARIN addresses announced to Internet: 1277746944
Equivalent to 76 /8s, 40 /16s and 223 /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: 262125
Total RIPE prefixes after maximum aggregation: 123998
RIPE Deaggregation factor: 2.11
Prefixes being announced from the RIPE address blocks: 257257
Unique aggregates announced from the RIPE address blocks: 160279
RIPE Region origin ASes present in the Internet Routing Table: 28435
RIPE Prefixes per ASN: 9.05
RIPE Region origin ASes announcing only one prefix: 12092
RIPE Region transit ASes present in the Internet Routing Table: 3939
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11378
Number of RIPE addresses announced to Internet: 716376960
Equivalent to 42 /8s, 179 /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,
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: 118565
Total LACNIC prefixes after maximum aggregation: 28505
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 117504
Unique aggregates announced from the LACNIC address blocks: 49263
LACNIC Region origin ASes present in the Internet Routing Table: 11051
LACNIC Prefixes per ASN: 10.63
LACNIC Region origin ASes announcing only one prefix: 2712
LACNIC Region transit ASes present in the Internet Routing Table: 2344
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: 8876
Number of LACNIC addresses announced to Internet: 178466816
Equivalent to 10 /8s, 163 /16s and 48 /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: 29918
Total AfriNIC prefixes after maximum aggregation: 5954
AfriNIC Deaggregation factor: 5.02
Prefixes being announced from the AfriNIC address blocks: 39114
Unique aggregates announced from the AfriNIC address blocks: 12702
AfriNIC Region origin ASes present in the Internet Routing Table: 1795
AfriNIC Prefixes per ASN: 21.79
AfriNIC Region origin ASes announcing only one prefix: 627
AfriNIC Region transit ASes present in the Internet Routing Table: 342
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1138
Number of AfriNIC addresses announced to Internet: 107696384
Equivalent to 6 /8s, 107 /16s and 81 /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 9498 8730 43 CHINAMOBILE-CN China Mobile Communicati
7545 5714 785 698 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4941 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4210 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3596 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3327 1840 96 VNPT-AS-VN VNPT Corp, VN
9498 3211 495 249 BBIL-AP BHARTI Airtel Ltd., IN
7552 2944 1330 20 VIETEL-AS-AP Viettel Group, VN
24560 2545 850 381 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2540 11270 601 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 9188 11009 3251 AMAZON-02, US
11492 4538 301 671 CABLEONE, US
7155 4172 288 100 VIASAT-SP-BACKBONE, US
6327 3546 1319 66 SHAW, CA
22773 3525 3055 300 ASN-CXA-ALL-CCI-22773-RDC, US
749 3161 54958 2413 DNIC-AS-00749, US
367 3077 3857 1441 DNIC-ASBLK-00306-00371, US
16625 3007 1399 2296 AKAMAI-AS, US
396982 2701 3597 397 GOOGLE-CLOUD-PLATFORM, US
7018 2507 23615 1569 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 7397 1713 145 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4093 3398 153 AKAMAI-ASN1, NL
8551 3448 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
9009 3077 275 1502 M247, RO
12389 2970 2295 915 ROSTELECOM-AS, RU
34984 2334 362 594 TELLCOM-AS, TR
58224 1714 922 546 TCI, IR
13188 1606 100 27 TRIOLAN, UA
8452 1521 1852 15 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 11852 3378 601 UNINET, MX
10620 3538 504 860 Telmex Colombia S.A., CO
13999 2414 332 626 Mega Cable, S.A. de C.V., MX
11830 2004 369 64 Instituto Costarricense de Electricidad
28573 1333 2324 232 Claro NXT Telecomunicacoes Ltda, BR
3816 1297 770 196 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1295 344 508 Axtel, S.A.B. de C.V., MX
6147 1111 369 22 Telefonica del Peru S.A.A., PE
11664 1054 168 425 Techtel LMDS Comunicaciones Interactiva
26615 1039 2501 51 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 1549 549 28 RAYA-AS, EG
36992 1358 1518 280 ETISALAT-MISR, EG
36903 1248 553 98 MT-MPLS, MA
29571 1044 67 45 ORANGE-COTE-IVOIRE, CI
36935 938 521 44 Vodafone-, EG
6713 551 1861 34 IAM-AS, MA
15399 535 55 51 WANANCHI-, KE
37342 489 32 1 MOVITEL, MZ
24757 479 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 11852 3378 601 UNINET, MX
9808 9498 8730 43 CHINAMOBILE-CN China Mobile Communicati
16509 9188 11009 3251 AMAZON-02, US
12479 7397 1713 145 UNI2-AS, ES
7545 5714 785 698 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4941 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4897 290 61 ALJAWWALSTC-AS, SA
11492 4538 301 671 CABLEONE, US
18403 4210 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4172 288 100 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 9498 9455 CHINAMOBILE-CN China Mobile Communications Grou
12479 7397 7252 UNI2-AS, ES
16509 9188 5937 AMAZON-02, US
7545 5714 5016 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4941 4866 ERX-CERNET-BKB China Education and Research Net
39891 4897 4836 ALJAWWALSTC-AS, SA
18403 4210 4185 FPT-AS-AP FPT Telecom Company, VN
7155 4172 4072 VIASAT-SP-BACKBONE, US
20940 4093 3940 AKAMAI-ASN1, NL
11492 4538 3867 CABLEONE, US
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
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
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, 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 /11:101 /12:299
/13:581 /14:1193 /15:2060 /16:13486 /17:8319 /18:13869
/19:25191 /20:44498 /21:51626 /22:110461 /23:99321 /24:560903
/25:739 /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 6483 7397 UNI2-AS, ES
8151 5883 11852 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3451 4538 CABLEONE, US
6327 3356 3546 SHAW, CA
7155 3117 4172 VIASAT-SP-BACKBONE, US
8551 2925 3448 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2578 3525 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2157 2501 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2112 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)
----------------------------------------------
1:2244 2:1441 3:266 4:5 5:4367 6:137
7:6 8:1536 9:1 11:172 12:1500 13:376
14:2317 15:303 16:200 17:367 18:661 20:305
21:4 22:188 23:6462 24:2526 25:2 27:2528
29:19 31:2545 32:78 34:26 35:117 36:1995
37:4544 38:5423 39:865 40:143 41:4006 42:2033
43:2307 44:324 45:16660 46:4306 47:371 49:1845
50:1891 51:583 52:1595 54:394 55:950 56:5
57:127 58:1858 59:1180 60:1005 61:2521 62:2681
63:1915 64:5656 65:2347 66:5005 67:3040 68:1346
69:4136 70:1188 71:639 72:2946 74:2627 75:1566
76:636 77:2299 78:1827 79:3002 80:2091 81:1829
82:1530 83:1311 84:1576 85:3072 86:757 87:2013
88:1209 89:3931 90:624 91:7858 92:2064 93:2633
94:3554 95:4076 96:1301 97:316 98:1084 99:735
100:91 101:1053 102:2871 103:32162 104:4744 105:578
106:918 107:2723 108:1143 109:4244 110:2140 111:3192
112:2061 113:1817 114:1701 115:1982 116:1919 117:2471
118:2698 119:1972 120:1808 121:1203 122:2620 123:2221
124:1624 125:2598 128:1458 129:925 130:1047 131:1970
132:824 133:408 134:1782 135:304 136:909 137:977
138:2662 139:1607 140:1304 141:1324 142:1524 143:1527
144:1013 145:348 146:1962 147:1615 148:2468 149:2336
150:879 151:1234 152:1847 153:524 154:5129 155:1394
156:2013 157:1346 158:1053 159:2200 160:2638 161:1595
162:3523 163:1621 164:1715 165:1837 166:1077 167:1741
168:3843 169:797 170:4614 171:947 172:3793 173:2982
174:987 175:1183 176:3790 177:4477 178:3563 179:2145
180:2462 181:3516 182:3416 183:1976 184:2278 185:20627
186:4674 187:4171 188:4163 189:3885 190:9308 191:1380
192:10970 193:8966 194:7299 195:5231 196:3116 197:2484
198:6023 199:6253 200:8018 201:6164 202:10575 203:10022
204:4547 205:3705 206:4391 207:3515 208:4131 209:4931
210:4496 211:2541 212:4277 213:3398 214:1114 215:70
216:6727 217:2774 218:1305 219:579 220:2033 221:984
222:843 223:2180
End of report
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