[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 28 18:02:56 UTC 2021
This is an automated weekly mailing describing the state of the Internet
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 http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Routing Table Report 04:00 +10GMT Sat 29 May, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 853329
Prefixes after maximum aggregation (per Origin AS): 322118
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 405311
Total ASes present in the Internet Routing Table: 71355
Prefixes per ASN: 11.96
Origin-only ASes present in the Internet Routing Table: 61388
Origin ASes announcing only one prefix: 25323
Transit ASes present in the Internet Routing Table: 9967
Transit-only ASes present in the Internet Routing Table: 312
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 54
Max AS path prepend of ASN ( 48366) 51
Prefixes from unregistered ASNs in the Routing Table: 1133
Number of instances of unregistered ASNs: 1140
Number of 32-bit ASNs allocated by the RIRs: 36145
Number of 32-bit ASNs visible in the Routing Table: 30084
Prefixes from 32-bit ASNs in the Routing Table: 140026
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: 595
Number of addresses announced to Internet: 3041760128
Equivalent to 181 /8s, 77 /16s and 147 /24s
Percentage of available address space announced: 82.2
Percentage of allocated address space announced: 82.2
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: 284524
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 229593
Total APNIC prefixes after maximum aggregation: 65601
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 225586
Unique aggregates announced from the APNIC address blocks: 90126
APNIC Region origin ASes present in the Internet Routing Table: 11616
APNIC Prefixes per ASN: 19.42
APNIC Region origin ASes announcing only one prefix: 3343
APNIC Region transit ASes present in the Internet Routing Table: 1632
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 31
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6771
Number of APNIC addresses announced to Internet: 774737152
Equivalent to 46 /8s, 45 /16s and 141 /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, 131072-147769
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: 248089
Total ARIN prefixes after maximum aggregation: 113510
ARIN Deaggregation factor: 2.19
Prefixes being announced from the ARIN address blocks: 248325
Unique aggregates announced from the ARIN address blocks: 118205
ARIN Region origin ASes present in the Internet Routing Table: 18821
ARIN Prefixes per ASN: 13.19
ARIN Region origin ASes announcing only one prefix: 6811
ARIN Region transit ASes present in the Internet Routing Table: 1946
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 3893
Number of ARIN addresses announced to Internet: 1271146496
Equivalent to 75 /8s, 196 /16s and 40 /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: 237900
Total RIPE prefixes after maximum aggregation: 110883
RIPE Deaggregation factor: 2.15
Prefixes being announced from the RIPE address blocks: 234017
Unique aggregates announced from the RIPE address blocks: 138911
RIPE Region origin ASes present in the Internet Routing Table: 27948
RIPE Prefixes per ASN: 8.37
RIPE Region origin ASes announcing only one prefix: 11994
RIPE Region transit ASes present in the Internet Routing Table: 3890
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 54
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10203
Number of RIPE addresses announced to Internet: 711878272
Equivalent to 42 /8s, 110 /16s and 102 /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: 110698
Total LACNIC prefixes after maximum aggregation: 26404
LACNIC Deaggregation factor: 4.19
Prefixes being announced from the LACNIC address blocks: 111849
Unique aggregates announced from the LACNIC address blocks: 47070
LACNIC Region origin ASes present in the Internet Routing Table: 10767
LACNIC Prefixes per ASN: 10.39
LACNIC Region origin ASes announcing only one prefix: 2681
LACNIC Region transit ASes present in the Internet Routing Table: 2030
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 35
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8409
Number of LACNIC addresses announced to Internet: 176222976
Equivalent to 10 /8s, 128 /16s and 243 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-272796 + 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: 25915
Total AfriNIC prefixes after maximum aggregation: 4960
AfriNIC Deaggregation factor: 5.22
Prefixes being announced from the AfriNIC address blocks: 32957
Unique aggregates announced from the AfriNIC address blocks: 10527
AfriNIC Region origin ASes present in the Internet Routing Table: 1465
AfriNIC Prefixes per ASN: 22.50
AfriNIC Region origin ASes announcing only one prefix: 494
AfriNIC Region transit ASes present in the Internet Routing Table: 300
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 808
Number of AfriNIC addresses announced to Internet: 107337216
Equivalent to 6 /8s, 101 /16s and 214 /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 7860 8995 48 CMNET-GD Guangdong Mobile Communication
7545 5776 783 673 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4761 4192 74 ERX-CERNET-BKB China Education and Rese
7713 3520 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3513 1330 20 VIETEL-AS-AP Viettel Group, VN
45899 2810 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2424 11104 562 KIXS-AS-KR Korea Telecom, KR
9498 2338 482 241 BBIL-AP BHARTI Airtel Ltd., IN
4755 2127 441 192 TATACOMM-AS TATA Communications formerl
45090 2116 1197 71 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 5224 9378 2276 AMAZON-02, US
11492 4717 312 726 CABLEONE, US
7155 4027 264 32 VIASAT-SP-BACKBONE, US
22773 3932 3001 240 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3457 1770 2425 AKAMAI-AS, US
6327 3360 1317 68 SHAW, CA
30036 2566 372 160 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2517 5035 480 CENTURYLINK-US-LEGACY-QWEST, US
5972 2234 451 788 DNIC-ASBLK-05800-06055, US
20115 2170 2928 508 CHARTER-20115, US
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 6673 1725 146 UNI2-AS, ES
20940 3614 3347 202 AKAMAI-ASN1, NL
39891 3266 187 22 ALJAWWALSTC-AS, SA
8551 3062 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2917 2281 892 ROSTELECOM-AS, RU
9009 2428 253 1305 M247, GB
34984 2200 355 590 TELLCOM-AS, TR
13188 1609 100 31 TRIOLAN, UA
58224 1594 886 572 TCI, IR
61317 1541 282 784 ASDETUK http://www.heficed.com, GB
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 8617 3483 571 Uninet S.A. de C.V., MX
10620 3422 526 613 Telmex Colombia S.A., CO
11830 2498 369 62 Instituto Costarricense de Electricidad
13999 1722 433 456 Mega Cable, S.A. de C.V., MX
6503 1450 311 476 Axtel, S.A.B. de C.V., MX
28573 1381 2282 227 CLARO S.A., BR
3816 1233 648 150 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1113 374 31 Telefonica del Peru S.A.A., PE
11664 1003 208 417 Techtel LMDS Comunicaciones Interactiva
11172 963 111 69 Alestra, S. de R.L. de C.V., MX
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1592 393 22 LINKdotNET-AS, EG
24835 1454 498 30 RAYA-AS, EG
36992 1240 1473 176 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 729 68 11 ORANGE-COTE-IVOIRE, CI
6713 613 1863 34 IAM-AS, MA
36935 528 522 40 Vodafone-, EG
37342 484 32 1 MOVITEL, MZ
15399 482 48 23 WANANCHI-, KE
36914 410 82 3 KENET-AS, KE
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 8617 3483 571 Uninet S.A. de C.V., MX
9808 7860 8995 48 CMNET-GD Guangdong Mobile Communication
12479 6673 1725 146 UNI2-AS, ES
7545 5776 783 673 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5224 9378 2276 AMAZON-02, US
4538 4761 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4717 312 726 CABLEONE, US
7155 4027 264 32 VIASAT-SP-BACKBONE, US
22773 3932 3001 240 ASN-CXA-ALL-CCI-22773-RDC, US
20940 3614 3347 202 AKAMAI-ASN1, NL
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 7860 7812 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6673 6527 UNI2-AS, ES
7545 5776 5103 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4761 4687 ERX-CERNET-BKB China Education and Research Net
7155 4027 3995 VIASAT-SP-BACKBONE, US
11492 4717 3991 CABLEONE, US
22773 3932 3692 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3513 3493 VIETEL-AS-AP Viettel Group, VN
7713 3520 3464 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
20940 3614 3412 AKAMAI-ASN1, NL
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US
18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
40544 UNALLOCATED 12.0.33.0/24 6461 ZAYO-6461, US
46505 UNALLOCATED 12.7.131.0/24 7018 ATT-INTERNET4, US
15132 UNALLOCATED 12.9.150.0/24 1239 SPRINTLINK, US
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.141.0.0/24 Origin: 395350 UNASSIGNED
Transit: 11426 TWC-11426-CAROLINAS, US
23.142.80.0/24 Origin: 398481 REDMERCURY, US
Transit: 209319 IPV6ROUTING, US
23.162.32.0/24 Origin: 32444 SAFELINK-MV, US
Transit: 6939 HURRICANE, US
23.249.162.0/24 Origin: 36352 AS-COLOCROSSING, US
Transit: 3257 GTT-BACKBONE GTT, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
Complete listing at http://thyme.rand.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 /8:17 /9:13 /10:41 /11:102 /12:306
/13:587 /14:1193 /15:1995 /16:13478 /17:8338 /18:13934
/19:25463 /20:42282 /21:50288 /22:106758 /23:91168 /24:495965
/25:1401 /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 5626 6673 UNI2-AS, ES
11492 3758 4717 CABLEONE, US
8151 3168 8617 Uninet S.A. de C.V., MX
6327 3167 3360 SHAW, CA
7155 3115 4027 VIASAT-SP-BACKBONE, US
22773 2962 3932 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2801 3266 ALJAWWALSTC-AS, SA
8551 2527 3062 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2233 2566 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1921 2498 Instituto Costarricense de Electricidad y Telec
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1890 2:1196 3:134 4:23 5:3587 6:74
7:5 8:1527 9:1 11:164 12:1740 13:365
14:2308 15:76 16:15 17:322 18:107 20:128
21:1 22:188 23:4769 24:2418 25:2 27:2533
29:19 31:2287 32:110 34:16 35:45 36:1563
37:3778 38:2142 39:625 40:160 41:3861 42:937
43:2105 44:259 45:14940 46:3710 47:318 49:1611
50:1789 51:100 52:1281 54:236 55:738 56:7
57:52 58:1712 59:1198 60:926 61:2314 62:2278
63:1970 64:5336 65:2398 66:5049 67:2892 68:1169
69:4084 70:1387 71:681 72:3161 74:2603 75:1489
76:693 77:2021 78:1692 79:2261 80:1860 81:1510
82:1368 83:1134 84:1276 85:2676 86:708 87:1814
88:971 89:2983 90:470 91:7361 92:1778 93:2537
94:3120 95:3512 96:1290 97:344 98:999 99:968
100:94 101:1039 102:1435 103:26082 104:3763 105:435
106:782 107:2269 108:715 109:3995 110:1999 111:3182
112:1979 113:1540 114:1461 115:1902 116:1887 117:2364
118:2352 119:1900 120:1485 121:1071 122:2349 123:2205
124:1591 125:2061 128:1252 129:1207 130:860 131:2026
132:747 133:357 134:1612 135:296 136:749 137:928
138:2324 139:1181 140:733 141:1185 142:1193 143:1296
144:1252 145:330 146:1444 147:1329 148:2197 149:1429
150:813 151:1080 152:1550 153:412 154:2496 155:1330
156:1521 157:1176 158:910 159:2031 160:2324 161:1168
162:3302 163:996 164:1529 165:1409 166:604 167:1772
168:3620 169:675 170:4256 171:773 172:2399 173:2958
174:980 175:1083 176:3158 177:4334 178:2906 179:1892
180:2272 181:2634 182:3198 183:2065 184:2414 185:18297
186:4145 187:3083 188:3292 189:2892 190:8872 191:1352
192:10679 193:8161 194:6632 195:4748 196:2865 197:2325
198:6079 199:6021 200:7422 201:5277 202:10547 203:10068
204:4656 205:3359 206:3555 207:3392 208:4010 209:4694
210:4242 211:2243 212:3689 213:3387 214:1216 215:62
216:6259 217:2549 218:1211 219:706 220:2077 221:981
222:876 223:1885
End of report
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