[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 2 18:02:38 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 03 Apr, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 854726
Prefixes after maximum aggregation (per Origin AS): 323513
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 406182
Total ASes present in the Internet Routing Table: 70970
Prefixes per ASN: 12.04
Origin-only ASes present in the Internet Routing Table: 61044
Origin ASes announcing only one prefix: 25196
Transit ASes present in the Internet Routing Table: 9926
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: 38
Max AS path prepend of ASN ( 37385) 33
Prefixes from unregistered ASNs in the Routing Table: 967
Number of instances of unregistered ASNs: 971
Number of 32-bit ASNs allocated by the RIRs: 35604
Number of 32-bit ASNs visible in the Routing Table: 29608
Prefixes from 32-bit ASNs in the Routing Table: 137894
Number of bogon 32-bit ASNs visible in the Routing Table: 15
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 522
Number of addresses announced to Internet: 2918308992
Equivalent to 173 /8s, 241 /16s and 220 /24s
Percentage of available address space announced: 78.8
Percentage of allocated address space announced: 78.8
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: 290249
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 226287
Total APNIC prefixes after maximum aggregation: 65318
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 222425
Unique aggregates announced from the APNIC address blocks: 89164
APNIC Region origin ASes present in the Internet Routing Table: 11432
APNIC Prefixes per ASN: 19.46
APNIC Region origin ASes announcing only one prefix: 3255
APNIC Region transit ASes present in the Internet Routing Table: 1621
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 30
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6586
Number of APNIC addresses announced to Internet: 771899392
Equivalent to 46 /8s, 2 /16s and 64 /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, 131072-143673
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: 245102
Total ARIN prefixes after maximum aggregation: 112563
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 245569
Unique aggregates announced from the ARIN address blocks: 117445
ARIN Region origin ASes present in the Internet Routing Table: 18774
ARIN Prefixes per ASN: 13.08
ARIN Region origin ASes announcing only one prefix: 6815
ARIN Region transit ASes present in the Internet Routing Table: 1936
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 3802
Number of ARIN addresses announced to Internet: 1152747008
Equivalent to 68 /8s, 181 /16s and 134 /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: 243836
Total RIPE prefixes after maximum aggregation: 113503
RIPE Deaggregation factor: 2.15
Prefixes being announced from the RIPE address blocks: 239762
Unique aggregates announced from the RIPE address blocks: 140974
RIPE Region origin ASes present in the Internet Routing Table: 27846
RIPE Prefixes per ASN: 8.61
RIPE Region origin ASes announcing only one prefix: 11961
RIPE Region transit ASes present in the Internet Routing Table: 3888
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10077
Number of RIPE addresses announced to Internet: 710602624
Equivalent to 42 /8s, 90 /16s and 239 /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: 112996
Total LACNIC prefixes after maximum aggregation: 26483
LACNIC Deaggregation factor: 4.27
Prefixes being announced from the LACNIC address blocks: 114121
Unique aggregates announced from the LACNIC address blocks: 48185
LACNIC Region origin ASes present in the Internet Routing Table: 10743
LACNIC Prefixes per ASN: 10.62
LACNIC Region origin ASes announcing only one prefix: 2667
LACNIC Region transit ASes present in the Internet Routing Table: 2020
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 33
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8352
Number of LACNIC addresses announced to Internet: 174952960
Equivalent to 10 /8s, 109 /16s and 146 /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: 25537
Total AfriNIC prefixes after maximum aggregation: 4909
AfriNIC Deaggregation factor: 5.20
Prefixes being announced from the AfriNIC address blocks: 32327
Unique aggregates announced from the AfriNIC address blocks: 9941
AfriNIC Region origin ASes present in the Internet Routing Table: 1447
AfriNIC Prefixes per ASN: 22.34
AfriNIC Region origin ASes announcing only one prefix: 498
AfriNIC Region transit ASes present in the Internet Routing Table: 294
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 791
Number of AfriNIC addresses announced to Internet: 107682816
Equivalent to 6 /8s, 107 /16s and 28 /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 6267 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5736 783 674 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4838 4192 74 ERX-CERNET-BKB China Education and Rese
7713 3528 1022 55 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3515 1330 21 VIETEL-AS-AP Viettel Group, VN
45899 2914 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2435 11104 565 KIXS-AS-KR Korea Telecom, KR
9498 2318 482 232 BBIL-AP BHARTI Airtel Ltd., IN
4755 2125 441 190 TATACOMM-AS TATA Communications formerl
45090 2097 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 4920 9258 2210 AMAZON-02, US
11492 4751 315 710 CABLEONE, US
7155 4027 264 32 VIASAT-SP-BACKBONE, US
22773 3918 2998 246 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3377 1750 2399 AKAMAI-AS, US
6327 3359 1317 71 SHAW, CA
30036 2541 372 94 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2525 5038 490 CENTURYLINK-US-LEGACY-QWEST, US
5650 2342 2996 1636 FRONTIER-FRTR, US
5972 2216 448 786 DNIC-ASBLK-05800-06055, 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
47331 7753 1043 3473 TTNET, TR
12479 6381 1701 138 UNI2-AS, ES
20940 3577 3347 202 AKAMAI-ASN1, NL
39891 3266 187 22 ALJAWWALSTC-AS, SA
8551 3242 379 41 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2892 2282 892 ROSTELECOM-AS, RU
9009 2377 246 1276 M247, GB
34984 2202 356 582 TELLCOM-AS, TR
13188 1610 100 31 TRIOLAN, UA
58224 1570 881 572 TCI, IR
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 8481 3472 570 Uninet S.A. de C.V., MX
10620 3413 527 596 Telmex Colombia S.A., CO
11830 2560 369 63 Instituto Costarricense de Electricidad
7303 1872 1732 296 Telecom Argentina S.A., AR
13999 1654 446 427 Mega Cable, S.A. de C.V., MX
6503 1444 311 476 Axtel, S.A.B. de C.V., MX
28573 1386 2269 223 CLARO S.A., BR
3816 1210 623 154 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1128 377 39 Telefonica del Peru S.A.A., PE
11664 995 211 399 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 1582 393 22 LINKdotNET-AS, EG
24835 1443 486 27 RAYA-AS, EG
36992 1194 1537 174 ETISALAT-MISR, EG
36903 977 510 104 MT-MPLS, MA
29571 711 68 11 ORANGE-COTE-IVOIRE, CI
6713 540 1863 34 IAM-AS, MA
36935 514 522 40 Vodafone-, EG
37342 487 32 1 MOVITEL, MZ
15399 477 47 17 WANANCHI-, KE
23889 447 232 16 MauritiusTelecom, MU
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 8481 3472 570 Uninet S.A. de C.V., MX
47331 7753 1043 3473 TTNET, TR
12479 6381 1701 138 UNI2-AS, ES
9808 6267 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5736 783 674 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 4920 9258 2210 AMAZON-02, US
4538 4838 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4751 315 710 CABLEONE, US
7155 4027 264 32 VIASAT-SP-BACKBONE, US
22773 3918 2998 246 ASN-CXA-ALL-CCI-22773-RDC, US
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
12479 6381 6243 UNI2-AS, ES
9808 6267 6212 CMNET-GD Guangdong Mobile Communication Co.Ltd.
7545 5736 5062 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4838 4764 ERX-CERNET-BKB China Education and Research Net
47331 7753 4280 TTNET, TR
11492 4751 4041 CABLEONE, US
7155 4027 3995 VIASAT-SP-BACKBONE, US
22773 3918 3672 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3515 3494 VIETEL-AS-AP Viettel Group, VN
7713 3528 3473 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
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46766 UNALLOCATED 8.44.208.0/24 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: 397881 STINGERS, US
Transit: 398481 REDMERCURY, 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 /8:11 /9:12 /10:40 /11:102 /12:292
/13:583 /14:1184 /15:1945 /16:13515 /17:8359 /18:13853
/19:25799 /20:42439 /21:51375 /22:106396 /23:90727 /24:496686
/25:1408 /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
47331 6929 7753 TTNET, TR
12479 5337 6381 UNI2-AS, ES
11492 3805 4751 CABLEONE, US
6327 3165 3359 SHAW, CA
7155 3115 4027 VIASAT-SP-BACKBONE, US
8151 3054 8481 Uninet S.A. de C.V., MX
22773 2959 3918 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2801 3266 ALJAWWALSTC-AS, SA
8551 2706 3242 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2237 2541 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1871 2:1114 3:94 4:19 5:3563 6:63
7:5 8:1502 9:1 11:36 12:1748 13:359
14:2318 15:73 16:15 17:317 18:93 20:129
22:188 23:4622 24:2397 25:2 27:2505 31:2286
32:113 34:2 35:40 36:1287 37:4017 38:2059
39:606 40:161 41:3854 42:924 43:2115 44:238
45:14977 46:3673 47:320 49:1608 50:1751 51:92
52:1208 54:217 55:778 56:6 57:57 58:1733
59:1202 60:891 61:2386 62:2199 63:1963 64:5291
65:2379 66:5159 67:2880 68:1154 69:4055 70:1398
71:689 72:3179 74:2581 75:1481 76:682 77:2018
78:3668 79:2420 80:1862 81:1647 82:1346 83:1118
84:1263 85:3353 86:710 87:1782 88:2703 89:3027
90:423 91:7298 92:1749 93:2537 94:3059 95:4402
96:1259 97:343 98:990 99:969 100:89 101:1047
102:1310 103:25706 104:3707 105:426 106:734 107:2246
108:705 109:3976 110:1993 111:2944 112:1970 113:1621
114:1465 115:1877 116:1889 117:2314 118:2340 119:1891
120:1104 121:1085 122:2265 123:2185 124:1563 125:2094
128:1368 129:954 130:834 131:2043 132:759 133:355
134:1595 135:289 136:750 137:916 138:2302 139:1200
140:736 141:1184 142:1117 143:1267 144:1255 145:331
146:1385 147:1294 148:2206 149:1442 150:788 151:1078
152:1554 153:392 154:2265 155:1326 156:1495 157:1172
158:926 159:2014 160:2092 161:1137 162:3254 163:975
164:1495 165:1335 166:594 167:1773 168:3551 169:663
170:4272 171:763 172:2111 173:2940 174:968 175:1095
176:3102 177:4312 178:2903 179:1957 180:2313 181:2562
182:3210 183:1827 184:2412 185:18154 186:4195 187:3198
188:3296 189:2824 190:8849 191:1487 192:10632 193:7975
194:6562 195:4705 196:2892 197:2363 198:6028 199:6035
200:7425 201:5346 202:10599 203:10085 204:4649 205:3318
206:3532 207:3333 208:4008 209:4645 210:4252 211:2187
212:3682 213:3288 214:1215 215:61 216:6176 217:2520
218:1151 219:703 220:2067 221:992 222:973 223:1859
End of report
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