[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 20 18:02:55 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 21 Aug, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 859868
Prefixes after maximum aggregation (per Origin AS): 325752
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 413785
Total ASes present in the Internet Routing Table: 71865
Prefixes per ASN: 11.97
Origin-only ASes present in the Internet Routing Table: 61780
Origin ASes announcing only one prefix: 25515
Transit ASes present in the Internet Routing Table: 10085
Transit-only ASes present in the Internet Routing Table: 338
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 37
Max AS path prepend of ASN (141827) 33
Prefixes from unregistered ASNs in the Routing Table: 1049
Number of instances of unregistered ASNs: 1055
Number of 32-bit ASNs allocated by the RIRs: 36959
Number of 32-bit ASNs visible in the Routing Table: 30762
Prefixes from 32-bit ASNs in the Routing Table: 142783
Number of bogon 32-bit ASNs visible in the Routing Table: 26
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 520
Number of addresses announced to Internet: 3038543744
Equivalent to 181 /8s, 28 /16s and 127 /24s
Percentage of available address space announced: 82.1
Percentage of allocated address space announced: 82.1
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: 285499
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 230866
Total APNIC prefixes after maximum aggregation: 66047
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 226383
Unique aggregates announced from the APNIC address blocks: 91138
APNIC Region origin ASes present in the Internet Routing Table: 11871
APNIC Prefixes per ASN: 19.07
APNIC Region origin ASes announcing only one prefix: 3372
APNIC Region transit ASes present in the Internet Routing Table: 1679
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7035
Number of APNIC addresses announced to Internet: 773573632
Equivalent to 46 /8s, 27 /16s and 204 /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: 251610
Total ARIN prefixes after maximum aggregation: 115210
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 251096
Unique aggregates announced from the ARIN address blocks: 119829
ARIN Region origin ASes present in the Internet Routing Table: 18894
ARIN Prefixes per ASN: 13.29
ARIN Region origin ASes announcing only one prefix: 6884
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: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4074
Number of ARIN addresses announced to Internet: 1268434432
Equivalent to 75 /8s, 154 /16s and 198 /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: 239014
Total RIPE prefixes after maximum aggregation: 111957
RIPE Deaggregation factor: 2.13
Prefixes being announced from the RIPE address blocks: 235603
Unique aggregates announced from the RIPE address blocks: 144381
RIPE Region origin ASes present in the Internet Routing Table: 28037
RIPE Prefixes per ASN: 8.40
RIPE Region origin ASes announcing only one prefix: 12060
RIPE Region transit ASes present in the Internet Routing Table: 3898
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10361
Number of RIPE addresses announced to Internet: 711071360
Equivalent to 42 /8s, 98 /16s and 22 /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: 111414
Total LACNIC prefixes after maximum aggregation: 26598
LACNIC Deaggregation factor: 4.19
Prefixes being announced from the LACNIC address blocks: 112417
Unique aggregates announced from the LACNIC address blocks: 47233
LACNIC Region origin ASes present in the Internet Routing Table: 10785
LACNIC Prefixes per ASN: 10.42
LACNIC Region origin ASes announcing only one prefix: 2667
LACNIC Region transit ASes present in the Internet Routing Table: 2088
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8438
Number of LACNIC addresses announced to Internet: 176610048
Equivalent to 10 /8s, 134 /16s and 219 /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: 25914
Total AfriNIC prefixes after maximum aggregation: 5176
AfriNIC Deaggregation factor: 5.01
Prefixes being announced from the AfriNIC address blocks: 33849
Unique aggregates announced from the AfriNIC address blocks: 10740
AfriNIC Region origin ASes present in the Internet Routing Table: 1521
AfriNIC Prefixes per ASN: 22.25
AfriNIC Region origin ASes announcing only one prefix: 532
AfriNIC Region transit ASes present in the Internet Routing Table: 304
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 32
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 854
Number of AfriNIC addresses announced to Internet: 108511488
Equivalent to 6 /8s, 119 /16s and 193 /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 7736 9000 57 CMNET-GD Guangdong Mobile Communication
7545 5821 785 675 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4711 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3547 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3532 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 2801 1897 56 VNPT-AS-VN VNPT Corp, VN
4766 2489 11121 572 KIXS-AS-KR Korea Telecom, KR
9498 2373 503 248 BBIL-AP BHARTI Airtel Ltd., IN
45090 2129 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
4755 2115 437 192 TATACOMM-AS TATA Communications formerl
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 5485 9667 2419 AMAZON-02, US
11492 4712 311 759 CABLEONE, US
7155 3981 264 32 VIASAT-SP-BACKBONE, US
22773 3971 3029 277 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3598 1859 2492 AKAMAI-AS, US
6327 3362 1313 62 SHAW, CA
30036 2573 373 228 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2516 5029 454 CENTURYLINK-US-LEGACY-QWEST, US
5972 2287 485 814 DNIC-ASBLK-05800-06055, US
20115 2244 3048 506 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 6780 1726 143 UNI2-AS, ES
20940 3766 3348 216 AKAMAI-ASN1, NL
39891 3267 187 22 ALJAWWALSTC-AS, SA
8551 2933 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2914 2283 896 ROSTELECOM-AS, RU
9009 2485 260 1330 M247, GB
34984 2217 357 594 TELLCOM-AS, TR
61317 1773 270 979 ASDETUK www.heficed.com, GB
58224 1627 889 563 TCI, IR
13188 1610 100 27 TRIOLAN, UA
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 8834 3459 585 Uninet S.A. de C.V., MX
10620 3399 522 671 Telmex Colombia S.A., CO
11830 2501 369 62 Instituto Costarricense de Electricidad
13999 1803 414 476 Mega Cable, S.A. de C.V., MX
6503 1509 359 477 Axtel, S.A.B. de C.V., MX
28573 1451 2307 233 CLARO S.A., BR
3816 1240 652 152 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1098 2351 134 TIM SA, BR
6147 1088 369 22 Telefonica del Peru S.A.A., PE
11664 979 193 435 Techtel LMDS Comunicaciones Interactiva
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 1640 393 22 LINKdotNET-AS, EG
24835 1464 503 31 RAYA-AS, EG
36992 1310 1489 267 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 758 68 11 ORANGE-COTE-IVOIRE, CI
6713 614 1863 34 IAM-AS, MA
36935 571 522 40 Vodafone-, EG
15399 500 49 28 WANANCHI-, KE
37342 469 32 1 MOVITEL, MZ
2018 337 319 74 TENET-1, ZA
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 8834 3459 585 Uninet S.A. de C.V., MX
9808 7736 9000 57 CMNET-GD Guangdong Mobile Communication
12479 6780 1726 143 UNI2-AS, ES
7545 5821 785 675 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5485 9667 2419 AMAZON-02, US
11492 4712 311 759 CABLEONE, US
4538 4711 4192 74 ERX-CERNET-BKB China Education and Rese
7155 3981 264 32 VIASAT-SP-BACKBONE, US
22773 3971 3029 277 ASN-CXA-ALL-CCI-22773-RDC, US
20940 3766 3348 216 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 7736 7679 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6780 6637 UNI2-AS, ES
7545 5821 5146 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4711 4637 ERX-CERNET-BKB China Education and Research Net
11492 4712 3953 CABLEONE, US
7155 3981 3949 VIASAT-SP-BACKBONE, US
22773 3971 3694 ASN-CXA-ALL-CCI-22773-RDC, US
20940 3766 3550 AKAMAI-ASN1, NL
7552 3547 3527 VIETEL-AS-AP Viettel Group, VN
7713 3532 3476 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
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
1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
40544 UNALLOCATED 12.0.33.0/24 6461 ZAYO-6461, 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
23.177.96.0/24 Origin: 397300 UNASSIGNED
Transit: 33387 NOCIX, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
27.126.156.0/22 Origin: 55827 UNASSIGNED
Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala
27.126.156.0/23 Origin: 55827 UNASSIGNED
Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala
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 /8:16 /9:13 /10:41 /11:101 /12:303
/13:589 /14:1193 /15:2006 /16:13420 /17:8214 /18:14001
/19:25441 /20:42501 /21:50770 /22:107164 /23:91675 /24:500974
/25:1446 /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 5716 6780 UNI2-AS, ES
11492 3671 4712 CABLEONE, US
6327 3173 3362 SHAW, CA
8151 3147 8834 Uninet S.A. de C.V., MX
7155 3069 3981 VIASAT-SP-BACKBONE, US
22773 2973 3971 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2803 3267 ALJAWWALSTC-AS, SA
8551 2399 2933 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2225 2573 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1934 2501 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)
----------------------------------------------
1:1906 2:1107 3:142 4:20 5:3580 6:82
7:5 8:1530 9:1 11:164 12:1743 13:384
14:2286 15:100 16:21 17:342 18:108 20:124
21:1 22:188 23:4993 24:2441 25:2 27:2506
29:19 31:2347 32:116 34:1 35:47 36:1699
37:3791 38:2203 39:639 40:164 41:3795 42:971
43:2080 44:274 45:15380 46:3662 47:348 48:7
49:1622 50:1813 51:101 52:1278 54:251 55:641
56:4 57:53 58:1733 59:1202 60:935 61:2300
62:2311 63:1955 64:5374 65:2361 66:4994 67:2877
68:1167 69:4122 70:1366 71:677 72:3150 74:2616
75:1500 76:699 77:2046 78:1654 79:2262 80:1879
81:1544 82:1366 83:1144 84:1285 85:2737 86:718
87:1806 88:962 89:3010 90:517 91:7371 92:1800
93:2541 94:3107 95:3502 96:1297 97:350 98:979
99:961 100:77 101:1028 102:1590 103:26752 104:3891
105:432 106:812 107:2285 108:729 109:3859 110:2033
111:3149 112:1931 113:1425 114:1468 115:1895 116:1887
117:2352 118:2327 119:1899 120:1462 121:1060 122:2515
123:2163 124:1599 125:2066 128:1331 129:1371 130:863
131:2013 132:752 133:363 134:1823 135:299 136:780
137:847 138:2390 139:1186 140:748 141:1210 142:1204
143:1339 144:1263 145:322 146:1495 147:1412 148:2163
149:1498 150:817 151:1080 152:1630 153:424 154:2993
155:1329 156:1700 157:1225 158:970 159:2015 160:2348
161:1239 162:3389 163:1092 164:1546 165:1418 166:595
167:1785 168:3658 169:705 170:4350 171:804 172:2642
173:2949 174:1021 175:1091 176:3213 177:4387 178:2975
179:1879 180:2258 181:2615 182:3221 183:2011 184:2419
185:18717 186:4216 187:3161 188:3310 189:2889 190:8723
191:1369 192:10717 193:8290 194:6746 195:4847 196:2903
197:2108 198:6019 199:6000 200:7381 201:5215 202:10566
203:10063 204:4610 205:3383 206:3713 207:3340 208:4026
209:4707 210:4188 211:2343 212:3744 213:3461 214:1166
215:60 216:6344 217:2578 218:1207 219:682 220:1966
221:953 222:857 223:1996
End of report
More information about the sanog
mailing list