[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Oct 20 18:02:16 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 21 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: 933249
Prefixes after maximum aggregation (per Origin AS): 354499
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 453979
Total ASes present in the Internet Routing Table: 74961
Prefixes per ASN: 12.45
Origin-only ASes present in the Internet Routing Table: 64309
Origin ASes announcing only one prefix: 26493
Transit ASes present in the Internet Routing Table: 10652
Transit-only ASes present in the Internet Routing Table: 466
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: 1050
Number of instances of unregistered ASNs: 1053
Number of 32-bit ASNs allocated by the RIRs: 42880
Number of 32-bit ASNs visible in the Routing Table: 35270
Prefixes from 32-bit ASNs in the Routing Table: 176608
Number of bogon 32-bit ASNs visible in the Routing Table: 25
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 527
Number of addresses announced to Internet: 3050844928
Equivalent to 181 /8s, 216 /16s and 51 /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: 310313
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 247818
Total APNIC prefixes after maximum aggregation: 71198
APNIC Deaggregation factor: 3.48
Prefixes being announced from the APNIC address blocks: 241168
Unique aggregates announced from the APNIC address blocks: 99178
APNIC Region origin ASes present in the Internet Routing Table: 13716
APNIC Prefixes per ASN: 17.58
APNIC Region origin ASes announcing only one prefix: 4119
APNIC Region transit ASes present in the Internet Routing Table: 1823
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: 9041
Number of APNIC addresses announced to Internet: 771026304
Equivalent to 45 /8s, 244 /16s and 237 /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: 273822
Total ARIN prefixes after maximum aggregation: 124061
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 277696
Unique aggregates announced from the ARIN address blocks: 132182
ARIN Region origin ASes present in the Internet Routing Table: 19078
ARIN Prefixes per ASN: 14.56
ARIN Region origin ASes announcing only one prefix: 6954
ARIN Region transit ASes present in the Internet Routing Table: 1971
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: 4822
Number of ARIN addresses announced to Internet: 1277548800
Equivalent to 76 /8s, 37 /16s and 217 /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: 261666
Total RIPE prefixes after maximum aggregation: 124024
RIPE Deaggregation factor: 2.11
Prefixes being announced from the RIPE address blocks: 256866
Unique aggregates announced from the RIPE address blocks: 160285
RIPE Region origin ASes present in the Internet Routing Table: 28450
RIPE Prefixes per ASN: 9.03
RIPE Region origin ASes announcing only one prefix: 12103
RIPE Region transit ASes present in the Internet Routing Table: 3946
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11387
Number of RIPE addresses announced to Internet: 716460672
Equivalent to 42 /8s, 180 /16s and 82 /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: 119000
Total LACNIC prefixes after maximum aggregation: 28497
LACNIC Deaggregation factor: 4.18
Prefixes being announced from the LACNIC address blocks: 117935
Unique aggregates announced from the LACNIC address blocks: 49227
LACNIC Region origin ASes present in the Internet Routing Table: 11044
LACNIC Prefixes per ASN: 10.68
LACNIC Region origin ASes announcing only one prefix: 2685
LACNIC Region transit ASes present in the Internet Routing Table: 2348
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: 8874
Number of LACNIC addresses announced to Internet: 178350848
Equivalent to 10 /8s, 161 /16s and 107 /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: 29893
Total AfriNIC prefixes after maximum aggregation: 5995
AfriNIC Deaggregation factor: 4.99
Prefixes being announced from the AfriNIC address blocks: 39057
Unique aggregates announced from the AfriNIC address blocks: 12670
AfriNIC Region origin ASes present in the Internet Routing Table: 1805
AfriNIC Prefixes per ASN: 21.64
AfriNIC Region origin ASes announcing only one prefix: 632
AfriNIC Region transit ASes present in the Internet Routing Table: 347
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: 1146
Number of AfriNIC addresses announced to Internet: 107034112
Equivalent to 6 /8s, 97 /16s and 54 /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 9497 8730 43 CHINAMOBILE-CN China Mobile Communicati
7545 5715 785 698 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4945 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4188 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 3214 492 240 BBIL-AP BHARTI Airtel Ltd., IN
7552 2952 1330 20 VIETEL-AS-AP Viettel Group, VN
24560 2553 849 378 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2539 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 9145 11002 3277 AMAZON-02, US
11492 4538 301 676 CABLEONE, US
7155 4172 288 100 VIASAT-SP-BACKBONE, US
6327 3547 1320 67 SHAW, CA
22773 3520 3055 299 ASN-CXA-ALL-CCI-22773-RDC, US
749 3160 54957 2412 DNIC-AS-00749, US
367 3078 3849 1442 DNIC-ASBLK-00306-00371, US
16625 3044 1405 2316 AKAMAI-AS, US
396982 2704 3598 397 GOOGLE-CLOUD-PLATFORM, US
7018 2532 23613 1585 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 7394 1713 145 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4091 3397 148 AKAMAI-ASN1, NL
8551 3449 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
9009 3102 277 1525 M247, RO
12389 2970 2295 914 ROSTELECOM-AS, RU
34984 2332 362 592 TELLCOM-AS, TR
58224 1701 920 523 TCI, IR
13188 1606 100 27 TRIOLAN, UA
8452 1522 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 11879 3372 605 UNINET, MX
10620 3542 504 858 Telmex Colombia S.A., CO
13999 2418 333 627 Mega Cable, S.A. de C.V., MX
11830 2001 369 64 Instituto Costarricense de Electricidad
28573 1332 2322 236 Claro NXT Telecomunicacoes Ltda, BR
3816 1298 770 191 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1283 343 510 Axtel, S.A.B. de C.V., MX
6147 1110 369 22 Telefonica del Peru S.A.A., PE
11664 1054 168 425 Techtel LMDS Comunicaciones Interactiva
26615 1040 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 1047 67 46 ORANGE-COTE-IVOIRE, CI
36935 938 521 44 Vodafone-, EG
6713 551 1861 34 IAM-AS, MA
15399 537 55 51 WANANCHI-, KE
24757 479 73 5 EthioNet-AS, ET
37342 471 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 11879 3372 605 UNINET, MX
9808 9497 8730 43 CHINAMOBILE-CN China Mobile Communicati
16509 9145 11002 3277 AMAZON-02, US
12479 7394 1713 145 UNI2-AS, ES
7545 5715 785 698 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4945 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4897 290 61 ALJAWWALSTC-AS, SA
11492 4538 301 676 CABLEONE, US
18403 4188 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 9497 9454 CHINAMOBILE-CN China Mobile Communications Grou
12479 7394 7249 UNI2-AS, ES
16509 9145 5868 AMAZON-02, US
7545 5715 5017 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4945 4870 ERX-CERNET-BKB China Education and Research Net
39891 4897 4836 ALJAWWALSTC-AS, SA
18403 4188 4163 FPT-AS-AP FPT Telecom Company, VN
7155 4172 4072 VIASAT-SP-BACKBONE, US
20940 4091 3943 AKAMAI-ASN1, NL
11492 4538 3862 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 /11:100 /12:299
/13:581 /14:1192 /15:2056 /16:13480 /17:8327 /18:13850
/19:25154 /20:44444 /21:51607 /22:110531 /23:99457 /24:561369
/25:734 /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 6481 7394 UNI2-AS, ES
8151 5916 11879 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3451 4538 CABLEONE, US
6327 3356 3547 SHAW, CA
7155 3117 4172 VIASAT-SP-BACKBONE, US
8551 2926 3449 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2575 3520 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2153 2498 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2116 3542 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2235 2:1443 3:269 4:5 5:4374 6:153
7:6 8:1536 9:1 11:172 12:1502 13:366
14:2320 15:305 16:200 17:364 18:663 20:308
21:4 22:188 23:6480 24:2532 25:2 27:2529
29:19 31:2548 32:75 34:26 35:117 36:2000
37:4486 38:5471 39:867 40:143 41:3963 42:2048
43:2305 44:325 45:16695 46:4344 47:370 49:1845
50:1895 51:578 52:1586 54:391 55:959 56:5
57:127 58:1861 59:1179 60:1005 61:2523 62:2699
63:1912 64:5638 65:2352 66:5001 67:3054 68:1346
69:4130 70:1190 71:639 72:2944 74:2636 75:1562
76:635 77:2307 78:1828 79:3008 80:2108 81:1830
82:1520 83:1305 84:1575 85:3063 86:767 87:2004
88:1203 89:3948 90:622 91:7850 92:2069 93:2642
94:3566 95:4003 96:1303 97:316 98:1083 99:736
100:92 101:1055 102:2884 103:32306 104:4792 105:577
106:924 107:2726 108:1135 109:4248 110:2141 111:3183
112:2064 113:1819 114:1700 115:1984 116:1920 117:2457
118:2689 119:1971 120:1811 121:1202 122:2617 123:2222
124:1620 125:2609 128:1470 129:916 130:1046 131:1963
132:819 133:408 134:1772 135:304 136:907 137:981
138:2662 139:1605 140:1306 141:1331 142:1516 143:1536
144:1008 145:348 146:1966 147:1618 148:2475 149:2346
150:882 151:1242 152:1846 153:524 154:5168 155:1402
156:2032 157:1352 158:1056 159:2196 160:2635 161:1601
162:3517 163:1624 164:1720 165:1848 166:1074 167:1742
168:3857 169:794 170:4615 171:946 172:3797 173:2997
174:981 175:1188 176:3622 177:4501 178:3543 179:2159
180:2467 181:3524 182:3424 183:1983 184:2271 185:20622
186:4708 187:4177 188:4097 189:3909 190:9321 191:1377
192:10970 193:8974 194:7314 195:5231 196:3134 197:2482
198:6033 199:6311 200:8067 201:6197 202:10574 203:10013
204:4551 205:3713 206:4391 207:3519 208:4127 209:4941
210:4497 211:2543 212:4273 213:3393 214:1112 215:71
216:6728 217:2775 218:1307 219:582 220:2034 221:985
222:844 223:2184
End of report
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