[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Oct 6 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 07 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: 932315
Prefixes after maximum aggregation (per Origin AS): 353915
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 453446
Total ASes present in the Internet Routing Table: 74914
Prefixes per ASN: 12.45
Origin-only ASes present in the Internet Routing Table: 64301
Origin ASes announcing only one prefix: 26472
Transit ASes present in the Internet Routing Table: 10613
Transit-only ASes present in the Internet Routing Table: 456
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: 995
Number of instances of unregistered ASNs: 997
Number of 32-bit ASNs allocated by the RIRs: 42780
Number of 32-bit ASNs visible in the Routing Table: 35222
Prefixes from 32-bit ASNs in the Routing Table: 176100
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: 526
Number of addresses announced to Internet: 3053552128
Equivalent to 182 /8s, 1 /16s and 130 /24s
Percentage of available address space announced: 82.5
Percentage of allocated address space announced: 82.5
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: 310516
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 247120
Total APNIC prefixes after maximum aggregation: 71004
APNIC Deaggregation factor: 3.48
Prefixes being announced from the APNIC address blocks: 240693
Unique aggregates announced from the APNIC address blocks: 98970
APNIC Region origin ASes present in the Internet Routing Table: 13692
APNIC Prefixes per ASN: 17.58
APNIC Region origin ASes announcing only one prefix: 4112
APNIC Region transit ASes present in the Internet Routing Table: 1816
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9019
Number of APNIC addresses announced to Internet: 772799872
Equivalent to 46 /8s, 15 /16s and 253 /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: 273510
Total ARIN prefixes after maximum aggregation: 123860
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 277244
Unique aggregates announced from the ARIN address blocks: 131906
ARIN Region origin ASes present in the Internet Routing Table: 19090
ARIN Prefixes per ASN: 14.52
ARIN Region origin ASes announcing only one prefix: 6954
ARIN Region transit ASes present in the Internet Routing Table: 1963
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: 1277857536
Equivalent to 76 /8s, 42 /16s and 143 /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: 261988
Total RIPE prefixes after maximum aggregation: 123876
RIPE Deaggregation factor: 2.11
Prefixes being announced from the RIPE address blocks: 257012
Unique aggregates announced from the RIPE address blocks: 160127
RIPE Region origin ASes present in the Internet Routing Table: 28445
RIPE Prefixes per ASN: 9.04
RIPE Region origin ASes announcing only one prefix: 12074
RIPE Region transit ASes present in the Internet Routing Table: 3953
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: 11370
Number of RIPE addresses announced to Internet: 716284544
Equivalent to 42 /8s, 177 /16s and 162 /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: 118788
Total LACNIC prefixes after maximum aggregation: 28527
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 117763
Unique aggregates announced from the LACNIC address blocks: 49325
LACNIC Region origin ASes present in the Internet Routing Table: 11046
LACNIC Prefixes per ASN: 10.66
LACNIC Region origin ASes announcing only one prefix: 2709
LACNIC Region transit ASes present in the Internet Routing Table: 2332
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: 8869
Number of LACNIC addresses announced to Internet: 178476544
Equivalent to 10 /8s, 163 /16s and 86 /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: 29914
Total AfriNIC prefixes after maximum aggregation: 5957
AfriNIC Deaggregation factor: 5.02
Prefixes being announced from the AfriNIC address blocks: 39077
Unique aggregates announced from the AfriNIC address blocks: 12679
AfriNIC Region origin ASes present in the Internet Routing Table: 1795
AfriNIC Prefixes per ASN: 21.77
AfriNIC Region origin ASes announcing only one prefix: 623
AfriNIC Region transit ASes present in the Internet Routing Table: 340
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: 1137
Number of AfriNIC addresses announced to Internet: 107707648
Equivalent to 6 /8s, 107 /16s and 125 /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 9493 8730 44 CHINAMOBILE-CN China Mobile Communicati
7545 5733 785 698 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4936 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4223 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3594 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3336 1840 96 VNPT-AS-VN VNPT Corp, VN
9498 3195 498 252 BBIL-AP BHARTI Airtel Ltd., IN
7552 2940 1330 20 VIETEL-AS-AP Viettel Group, VN
4766 2540 11270 601 KIXS-AS-KR Korea Telecom, KR
24560 2531 850 381 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
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 9080 10987 3283 AMAZON-02, US
11492 4537 301 671 CABLEONE, US
7155 4177 288 100 VIASAT-SP-BACKBONE, US
6327 3546 1319 66 SHAW, CA
22773 3520 3054 297 ASN-CXA-ALL-CCI-22773-RDC, US
749 3163 54958 2415 DNIC-AS-00749, US
367 3022 3847 1419 DNIC-ASBLK-00306-00371, US
16625 3015 1418 2307 AKAMAI-AS, US
396982 2700 3597 396 GOOGLE-CLOUD-PLATFORM, US
30036 2498 359 372 MEDIACOM-ENTERPRISE-BUSINESS, 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 7386 1713 145 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4082 3398 153 AKAMAI-ASN1, NL
8551 3446 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
9009 3028 272 1501 M247, RO
12389 2971 2295 915 ROSTELECOM-AS, RU
34984 2334 362 594 TELLCOM-AS, TR
58224 1720 923 530 TCI, IR
13188 1606 100 27 TRIOLAN, UA
8452 1520 1852 16 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 11814 3378 601 UNINET, MX
10620 3534 504 858 Telmex Colombia S.A., CO
13999 2395 331 628 Mega Cable, S.A. de C.V., MX
11830 2006 369 64 Instituto Costarricense de Electricidad
28573 1331 2324 233 Claro NXT Telecomunicacoes Ltda, BR
3816 1297 766 191 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1293 344 507 Axtel, S.A.B. de C.V., MX
6147 1111 369 22 Telefonica del Peru S.A.A., PE
11664 1077 169 428 Techtel LMDS Comunicaciones Interactiva
26615 1035 2501 49 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 1535 549 28 RAYA-AS, EG
36992 1326 1516 283 ETISALAT-MISR, EG
36903 1248 553 98 MT-MPLS, MA
29571 1045 67 45 ORANGE-COTE-IVOIRE, CI
36935 938 521 44 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 540 55 53 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 11814 3378 601 UNINET, MX
9808 9493 8730 44 CHINAMOBILE-CN China Mobile Communicati
16509 9080 10987 3283 AMAZON-02, US
12479 7386 1713 145 UNI2-AS, ES
7545 5733 785 698 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4936 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4897 290 61 ALJAWWALSTC-AS, SA
11492 4537 301 671 CABLEONE, US
18403 4223 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4177 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 9493 9449 CHINAMOBILE-CN China Mobile Communications Grou
12479 7386 7241 UNI2-AS, ES
16509 9080 5797 AMAZON-02, US
7545 5733 5035 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4936 4861 ERX-CERNET-BKB China Education and Research Net
39891 4897 4836 ALJAWWALSTC-AS, SA
18403 4223 4198 FPT-AS-AP FPT Telecom Company, VN
7155 4177 4077 VIASAT-SP-BACKBONE, US
20940 4082 3929 AKAMAI-ASN1, NL
11492 4537 3866 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 /14:1196 /15:2064 /16:13502 /17:8315 /18:13881
/19:25207 /20:44503 /21:51603 /22:110347 /23:99093 /24:560815
/25:740 /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 6472 7386 UNI2-AS, ES
8151 5850 11814 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3450 4537 CABLEONE, US
6327 3356 3546 SHAW, CA
7155 3122 4177 VIASAT-SP-BACKBONE, US
8551 2923 3446 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2574 3520 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2155 2498 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2108 3534 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2229 2:1431 3:265 4:5 5:4424 6:137
7:6 8:1538 9:1 11:172 12:1503 13:367
14:2330 15:304 16:197 17:368 18:658 20:296
21:4 22:188 23:6446 24:2520 25:2 27:2534
29:19 31:2546 32:78 34:25 35:117 36:2009
37:4540 38:5369 39:871 40:143 41:4018 42:2062
43:2297 44:324 45:16634 46:4300 47:371 49:1838
50:1889 51:584 52:1594 54:389 55:933 56:5
57:126 58:1854 59:1181 60:1003 61:2517 62:2689
63:1916 64:5673 65:2358 66:5004 67:3041 68:1344
69:4159 70:1192 71:666 72:2939 74:2631 75:1563
76:634 77:2303 78:1830 79:2992 80:2092 81:1829
82:1520 83:1311 84:1564 85:3111 86:764 87:2001
88:1203 89:3926 90:623 91:7843 92:2062 93:2623
94:3540 95:4069 96:1302 97:315 98:1084 99:732
100:90 101:1047 102:2884 103:32181 104:4744 105:577
106:915 107:2726 108:1138 109:4235 110:2138 111:3196
112:2065 113:1819 114:1694 115:1985 116:1904 117:2457
118:2689 119:1967 120:1806 121:1190 122:2615 123:2219
124:1621 125:2579 128:1455 129:925 130:1048 131:1982
132:818 133:408 134:1785 135:306 136:971 137:973
138:2633 139:1610 140:1294 141:1330 142:1522 143:1559
144:1009 145:349 146:1960 147:1596 148:2488 149:2321
150:877 151:1229 152:1861 153:523 154:5105 155:1391
156:2009 157:1346 158:1056 159:2199 160:2644 161:1593
162:3520 163:1617 164:1709 165:1853 166:1084 167:1747
168:3849 169:808 170:4662 171:922 172:3802 173:2971
174:984 175:1195 176:3776 177:4486 178:3547 179:2154
180:2455 181:3532 182:3405 183:1979 184:2273 185:20622
186:4720 187:4138 188:4162 189:3877 190:9324 191:1410
192:10984 193:8967 194:7315 195:5227 196:3116 197:2476
198:6033 199:6186 200:7995 201:6156 202:10548 203:10030
204:4553 205:3714 206:4401 207:3513 208:4151 209:4916
210:4500 211:2539 212:4276 213:3377 214:1112 215:71
216:6727 217:2773 218:1302 219:577 220:2033 221:981
222:840 223:2178
End of report
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