[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jul 28 18:02:10 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
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 29 Jul, 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: 927608
Prefixes after maximum aggregation (per Origin AS): 351673
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 452476
Total ASes present in the Internet Routing Table: 74625
Prefixes per ASN: 12.43
Origin-only ASes present in the Internet Routing Table: 64078
Origin ASes announcing only one prefix: 26312
Transit ASes present in the Internet Routing Table: 10547
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: 68
Max AS path prepend of ASN (263725) 64
Prefixes from unregistered ASNs in the Routing Table: 1101
Number of instances of unregistered ASNs: 1103
Number of 32-bit ASNs allocated by the RIRs: 42345
Number of 32-bit ASNs visible in the Routing Table: 34877
Prefixes from 32-bit ASNs in the Routing Table: 174104
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: 607
Number of addresses announced to Internet: 3053785344
Equivalent to 182 /8s, 5 /16s and 17 /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: 99.6
Total number of prefixes smaller than registry allocations: 309027
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 246183
Total APNIC prefixes after maximum aggregation: 70163
APNIC Deaggregation factor: 3.51
Prefixes being announced from the APNIC address blocks: 239982
Unique aggregates announced from the APNIC address blocks: 98829
APNIC Region origin ASes present in the Internet Routing Table: 13551
APNIC Prefixes per ASN: 17.71
APNIC Region origin ASes announcing only one prefix: 4014
APNIC Region transit ASes present in the Internet Routing Table: 1790
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 28
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8869
Number of APNIC addresses announced to Internet: 773427072
Equivalent to 46 /8s, 25 /16s and 143 /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: 271963
Total ARIN prefixes after maximum aggregation: 123672
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 274070
Unique aggregates announced from the ARIN address blocks: 130874
ARIN Region origin ASes present in the Internet Routing Table: 19093
ARIN Prefixes per ASN: 14.35
ARIN Region origin ASes announcing only one prefix: 6958
ARIN Region transit ASes present in the Internet Routing Table: 1954
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: 4817
Number of ARIN addresses announced to Internet: 1277267200
Equivalent to 76 /8s, 33 /16s and 141 /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: 260230
Total RIPE prefixes after maximum aggregation: 122637
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 256976
Unique aggregates announced from the RIPE address blocks: 159847
RIPE Region origin ASes present in the Internet Routing Table: 28354
RIPE Prefixes per ASN: 9.06
RIPE Region origin ASes announcing only one prefix: 12041
RIPE Region transit ASes present in the Internet Routing Table: 3942
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11264
Number of RIPE addresses announced to Internet: 716774016
Equivalent to 42 /8s, 185 /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
196608-213403
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: 118452
Total LACNIC prefixes after maximum aggregation: 28544
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 117598
Unique aggregates announced from the LACNIC address blocks: 49709
LACNIC Region origin ASes present in the Internet Routing Table: 11000
LACNIC Prefixes per ASN: 10.69
LACNIC Region origin ASes announcing only one prefix: 2682
LACNIC Region transit ASes present in the Internet Routing Table: 2322
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 68
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8812
Number of LACNIC addresses announced to Internet: 178572288
Equivalent to 10 /8s, 164 /16s and 204 /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: 29679
Total AfriNIC prefixes after maximum aggregation: 5920
AfriNIC Deaggregation factor: 5.01
Prefixes being announced from the AfriNIC address blocks: 38375
Unique aggregates announced from the AfriNIC address blocks: 12721
AfriNIC Region origin ASes present in the Internet Routing Table: 1768
AfriNIC Prefixes per ASN: 21.71
AfriNIC Region origin ASes announcing only one prefix: 617
AfriNIC Region transit ASes present in the Internet Routing Table: 333
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 40
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1115
Number of AfriNIC addresses announced to Internet: 107383808
Equivalent to 6 /8s, 102 /16s and 140 /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 9526 8706 40 CHINAMOBILE-CN China Mobile Communicati
7545 5682 784 689 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4853 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4250 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3588 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3370 1856 95 VNPT-AS-VN VNPT Corp, VN
7552 3362 1331 21 VIETEL-AS-AP Viettel Group, VN
9498 3050 498 247 BBIL-AP BHARTI Airtel Ltd., IN
4766 2549 11270 588 KIXS-AS-KR Korea Telecom, KR
24560 2457 833 454 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 8806 10937 3168 AMAZON-02, US
11492 4525 300 620 CABLEONE, US
7155 4194 288 101 VIASAT-SP-BACKBONE, US
22773 3541 3053 268 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3525 1319 66 SHAW, CA
16625 3144 1557 2354 AKAMAI-AS, US
749 3139 54962 2391 DNIC-AS-00749, US
367 2968 3840 1404 DNIC-ASBLK-00306-00371, US
396982 2678 3595 384 GOOGLE-CLOUD-PLATFORM, US
30036 2514 361 351 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 7310 1706 141 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4074 3398 158 AKAMAI-ASN1, NL
8551 3454 368 33 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2973 2294 914 ROSTELECOM-AS, RU
9009 2670 247 1394 M247, RO
34984 2317 362 605 TELLCOM-AS, TR
58224 1816 944 535 TCI, IR
6849 1765 307 17 UKRTELNET, UA
13188 1606 100 27 TRIOLAN, UA
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 11617 3387 596 UNINET, MX
10620 3533 507 832 Telmex Colombia S.A., CO
13999 2419 362 635 Mega Cable, S.A. de C.V., MX
11830 1996 369 64 Instituto Costarricense de Electricidad
28573 1317 2322 238 Claro NXT Telecomunicacoes Ltda, BR
3816 1301 767 167 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1299 344 510 Axtel, S.A.B. de C.V., MX
6147 1123 370 22 Telefonica del Peru S.A.A., PE
11664 1112 181 436 Techtel LMDS Comunicaciones Interactiva
26615 1036 2500 48 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 1587 393 19 LINKdotNET-AS, EG
24835 1517 533 27 RAYA-AS, EG
36992 1355 1518 282 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1049 67 45 ORANGE-COTE-IVOIRE, CI
36935 922 521 43 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
37342 507 32 1 MOVITEL, MZ
24757 479 73 5 EthioNet-AS, ET
15399 457 54 50 WANANCHI-, KE
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 11617 3387 596 UNINET, MX
9808 9526 8706 40 CHINAMOBILE-CN China Mobile Communicati
16509 8806 10937 3168 AMAZON-02, US
12479 7310 1706 141 UNI2-AS, ES
7545 5682 784 689 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 290 61 ALJAWWALSTC-AS, SA
4538 4853 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4525 300 620 CABLEONE, US
18403 4250 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4194 288 101 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 9526 9486 CHINAMOBILE-CN China Mobile Communications Grou
12479 7310 7169 UNI2-AS, ES
16509 8806 5638 AMAZON-02, US
7545 5682 4993 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 4836 ALJAWWALSTC-AS, SA
4538 4853 4778 ERX-CERNET-BKB China Education and Research Net
18403 4250 4225 FPT-AS-AP FPT Telecom Company, VN
7155 4194 4093 VIASAT-SP-BACKBONE, US
20940 4074 3916 AKAMAI-ASN1, NL
11492 4525 3905 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
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
19695 UNALLOCATED 8.20.161.0/24 7015 COMCAST-7015, 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 UNASSIGNED
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.176.160.0/24 Origin: 397327 UNASSIGNED
23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
41.57.124.0/22 Origin: 37442 UNASSIGNED
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 /10:39 /11:102 /12:297
/13:579 /14:1198 /15:2071 /16:13473 /17:8279 /18:13876
/19:25203 /20:44422 /21:51527 /22:110199 /23:98821 /24:556744
/25:748 /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 6400 7310 UNI2-AS, ES
8151 5586 11617 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3434 4525 CABLEONE, US
6327 3335 3525 SHAW, CA
7155 3139 4194 VIASAT-SP-BACKBONE, US
8551 2923 3454 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2607 3541 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2169 2514 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2092 3533 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2218 2:1347 3:245 4:5 5:4487 6:131
7:6 8:1553 9:1 11:172 12:1523 13:374
14:2308 15:302 16:198 17:373 18:540 20:271
21:4 22:188 23:6371 24:2477 25:4 27:2504
29:19 31:2533 32:81 34:25 35:114 36:1945
37:4693 38:5087 39:832 40:152 41:3887 42:2033
43:2328 44:305 45:16659 46:4339 47:381 49:1789
50:1862 51:584 52:1592 54:390 55:979 56:8
57:120 58:1892 59:1170 60:989 61:2487 62:2673
63:1926 64:5571 65:2291 66:4951 67:3050 68:1326
69:4090 70:1208 71:679 72:2977 74:2637 75:1579
76:620 77:2448 78:1833 79:2952 80:2114 81:1805
82:1493 83:1269 84:1542 85:2985 86:766 87:2014
88:1175 89:3840 90:619 91:7797 92:2066 93:2605
94:3568 95:4042 96:1295 97:329 98:1149 99:735
100:95 101:1083 102:2832 103:31834 104:4586 105:568
106:887 107:2557 108:1098 109:4244 110:2107 111:3174
112:2062 113:1810 114:1647 115:1985 116:1913 117:2514
118:2672 119:1980 120:1816 121:1140 122:2577 123:2184
124:1618 125:2516 128:1450 129:1047 130:1020 131:1968
132:814 133:422 134:1791 135:306 136:881 137:960
138:2623 139:1581 140:1253 141:1302 142:1476 143:1492
144:1006 145:342 146:1960 147:1596 148:2431 149:2170
150:881 151:1170 152:1849 153:506 154:4696 155:1379
156:1891 157:1323 158:1099 159:2231 160:2595 161:1571
162:3510 163:1569 164:1721 165:1849 166:1039 167:1738
168:3878 169:935 170:4625 171:902 172:3644 173:2988
174:1045 175:1147 176:3747 177:4482 178:3619 179:2165
180:2458 181:3491 182:3444 183:1989 184:2296 185:20488
186:4737 187:4111 188:4126 189:3721 190:9230 191:1389
192:10941 193:8945 194:7310 195:5178 196:3121 197:2465
198:6021 199:6096 200:7991 201:5906 202:10612 203:10095
204:4560 205:3660 206:4353 207:3450 208:4145 209:4933
210:4478 211:2534 212:4255 213:3593 214:1096 215:60
216:6721 217:2761 218:1282 219:584 220:2032 221:961
222:854 223:2191
End of report
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