[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 14 18:02:53 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 15 May, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 851970
Prefixes after maximum aggregation (per Origin AS): 321487
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 407186
Total ASes present in the Internet Routing Table: 71239
Prefixes per ASN: 11.96
Origin-only ASes present in the Internet Routing Table: 61261
Origin ASes announcing only one prefix: 25251
Transit ASes present in the Internet Routing Table: 9978
Transit-only ASes present in the Internet Routing Table: 314
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: 1233
Number of instances of unregistered ASNs: 1240
Number of 32-bit ASNs allocated by the RIRs: 36004
Number of 32-bit ASNs visible in the Routing Table: 29962
Prefixes from 32-bit ASNs in the Routing Table: 139452
Number of bogon 32-bit ASNs visible in the Routing Table: 24
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 710
Number of addresses announced to Internet: 3040375168
Equivalent to 181 /8s, 56 /16s and 113 /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: 284089
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 229147
Total APNIC prefixes after maximum aggregation: 65476
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 225282
Unique aggregates announced from the APNIC address blocks: 89780
APNIC Region origin ASes present in the Internet Routing Table: 11588
APNIC Prefixes per ASN: 19.44
APNIC Region origin ASes announcing only one prefix: 3319
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: 30
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6741
Number of APNIC addresses announced to Internet: 774067200
Equivalent to 46 /8s, 35 /16s and 84 /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: 247299
Total ARIN prefixes after maximum aggregation: 113170
ARIN Deaggregation factor: 2.19
Prefixes being announced from the ARIN address blocks: 247651
Unique aggregates announced from the ARIN address blocks: 117566
ARIN Region origin ASes present in the Internet Routing Table: 18789
ARIN Prefixes per ASN: 13.18
ARIN Region origin ASes announcing only one prefix: 6795
ARIN Region transit ASes present in the Internet Routing Table: 1935
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: 3865
Number of ARIN addresses announced to Internet: 1271955712
Equivalent to 75 /8s, 208 /16s and 129 /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: 236896
Total RIPE prefixes after maximum aggregation: 110655
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 232910
Unique aggregates announced from the RIPE address blocks: 141809
RIPE Region origin ASes present in the Internet Routing Table: 27907
RIPE Prefixes per ASN: 8.35
RIPE Region origin ASes announcing only one prefix: 11976
RIPE Region transit ASes present in the Internet Routing Table: 3892
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10165
Number of RIPE addresses announced to Internet: 710280576
Equivalent to 42 /8s, 86 /16s and 5 /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: 111451
Total LACNIC prefixes after maximum aggregation: 26439
LACNIC Deaggregation factor: 4.22
Prefixes being announced from the LACNIC address blocks: 112554
Unique aggregates announced from the LACNIC address blocks: 47054
LACNIC Region origin ASes present in the Internet Routing Table: 10737
LACNIC Prefixes per ASN: 10.48
LACNIC Region origin ASes announcing only one prefix: 2669
LACNIC Region transit ASes present in the Internet Routing Table: 2037
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8386
Number of LACNIC addresses announced to Internet: 176161280
Equivalent to 10 /8s, 128 /16s and 2 /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: 25943
Total AfriNIC prefixes after maximum aggregation: 4944
AfriNIC Deaggregation factor: 5.25
Prefixes being announced from the AfriNIC address blocks: 32863
Unique aggregates announced from the AfriNIC address blocks: 10439
AfriNIC Region origin ASes present in the Internet Routing Table: 1459
AfriNIC Prefixes per ASN: 22.52
AfriNIC Region origin ASes announcing only one prefix: 492
AfriNIC Region transit ASes present in the Internet Routing Table: 301
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 805
Number of AfriNIC addresses announced to Internet: 107426560
Equivalent to 6 /8s, 103 /16s and 51 /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 7824 8995 52 CMNET-GD Guangdong Mobile Communication
7545 5767 782 671 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4762 4192 74 ERX-CERNET-BKB China Education and Rese
7713 3520 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3484 1330 20 VIETEL-AS-AP Viettel Group, VN
45899 2806 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2418 11104 563 KIXS-AS-KR Korea Telecom, KR
9498 2341 482 242 BBIL-AP BHARTI Airtel Ltd., IN
4755 2127 441 192 TATACOMM-AS TATA Communications formerl
45090 2121 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 5137 9377 2263 AMAZON-02, US
11492 4778 316 592 CABLEONE, US
7155 4027 264 32 VIASAT-SP-BACKBONE, US
22773 3923 2998 246 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3448 1772 2426 AKAMAI-AS, US
6327 3358 1317 68 SHAW, CA
30036 2565 373 135 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2528 5037 485 CENTURYLINK-US-LEGACY-QWEST, US
5972 2236 451 778 DNIC-ASBLK-05800-06055, US
20115 2171 2929 509 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 6640 1725 146 UNI2-AS, ES
20940 3596 3347 202 AKAMAI-ASN1, NL
39891 3266 187 22 ALJAWWALSTC-AS, SA
8551 3107 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2902 2281 890 ROSTELECOM-AS, RU
9009 2435 250 1306 M247, GB
34984 2221 357 588 TELLCOM-AS, TR
13188 1607 100 37 TRIOLAN, UA
58224 1597 886 579 TCI, IR
61317 1530 283 776 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 8573 3480 572 Uninet S.A. de C.V., MX
10620 3422 526 613 Telmex Colombia S.A., CO
11830 2492 369 62 Instituto Costarricense de Electricidad
13999 1710 434 441 Mega Cable, S.A. de C.V., MX
6503 1445 311 477 Axtel, S.A.B. de C.V., MX
28573 1403 2281 225 CLARO S.A., BR
3816 1233 648 150 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1121 377 38 Telefonica del Peru S.A.A., PE
11664 1004 210 406 Techtel LMDS Comunicaciones Interactiva
11172 973 112 72 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 1590 393 22 LINKdotNET-AS, EG
24835 1452 494 28 RAYA-AS, EG
36992 1194 1472 179 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 731 68 11 ORANGE-COTE-IVOIRE, CI
6713 592 1863 34 IAM-AS, MA
36935 524 522 40 Vodafone-, EG
37342 487 32 1 MOVITEL, MZ
15399 482 48 22 WANANCHI-, KE
23889 439 232 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 8573 3480 572 Uninet S.A. de C.V., MX
9808 7824 8995 52 CMNET-GD Guangdong Mobile Communication
12479 6640 1725 146 UNI2-AS, ES
7545 5767 782 671 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5137 9377 2263 AMAZON-02, US
11492 4778 316 592 CABLEONE, US
4538 4762 4192 74 ERX-CERNET-BKB China Education and Rese
7155 4027 264 32 VIASAT-SP-BACKBONE, US
22773 3923 2998 246 ASN-CXA-ALL-CCI-22773-RDC, US
20940 3596 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 7824 7772 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6640 6494 UNI2-AS, ES
7545 5767 5096 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4762 4688 ERX-CERNET-BKB China Education and Research Net
11492 4778 4186 CABLEONE, US
7155 4027 3995 VIASAT-SP-BACKBONE, US
22773 3923 3677 ASN-CXA-ALL-CCI-22773-RDC, US
7713 3520 3464 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
7552 3484 3464 VIETEL-AS-AP Viettel Group, VN
20940 3596 3394 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
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
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 /11:103 /12:306
/13:589 /14:1191 /15:1998 /16:13482 /17:8311 /18:13918
/19:25748 /20:42230 /21:50133 /22:106695 /23:90968 /24:494820
/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
12479 5596 6640 UNI2-AS, ES
11492 3822 4778 CABLEONE, US
6327 3167 3358 SHAW, CA
8151 3129 8573 Uninet S.A. de C.V., MX
7155 3115 4027 VIASAT-SP-BACKBONE, US
22773 2960 3923 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2801 3266 ALJAWWALSTC-AS, SA
8551 2572 3107 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2232 2565 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1916 2492 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)
----------------------------------------------
1:1882 2:1197 3:122 4:19 5:3547 6:65
7:5 8:1524 9:1 11:164 12:1744 13:363
14:2295 15:76 16:15 17:322 18:93 20:128
21:1 22:188 23:4712 24:2416 25:2 27:2520
29:19 31:2315 32:111 34:2 35:39 36:1560
37:3771 38:2089 39:623 40:159 41:3841 42:935
43:2109 44:249 45:14956 46:3703 47:319 49:1611
50:1778 51:100 52:1254 54:224 55:750 56:8
57:54 58:1704 59:1202 60:918 61:2332 62:2270
63:1964 64:5345 65:2380 66:5088 67:2900 68:1162
69:4088 70:1383 71:682 72:3171 74:2590 75:1487
76:686 77:2005 78:1693 79:2258 80:1863 81:1503
82:1374 83:1126 84:1274 85:2720 86:713 87:1800
88:960 89:2979 90:463 91:7310 92:1756 93:2513
94:3110 95:3506 96:1281 97:347 98:995 99:971
100:92 101:1034 102:1419 103:26025 104:3732 105:436
106:728 107:2270 108:719 109:4012 110:1995 111:3183
112:1978 113:1534 114:1459 115:1909 116:1890 117:2362
118:2346 119:1884 120:1473 121:1064 122:2272 123:2217
124:1585 125:2061 128:1252 129:1241 130:851 131:2034
132:755 133:360 134:1615 135:294 136:743 137:929
138:2320 139:1173 140:731 141:1185 142:1192 143:1282
144:1258 145:329 146:1415 147:1309 148:2214 149:1414
150:814 151:1074 152:1548 153:399 154:2467 155:1326
156:1497 157:1176 158:911 159:2043 160:2127 161:1163
162:3300 163:993 164:1523 165:1395 166:595 167:1774
168:3598 169:684 170:4271 171:770 172:2332 173:2948
174:993 175:1086 176:3134 177:4351 178:2901 179:1924
180:2267 181:2617 182:3207 183:2050 184:2420 185:18235
186:4197 187:3106 188:3293 189:2888 190:8868 191:1416
192:10682 193:8097 194:6604 195:4722 196:2878 197:2387
198:6064 199:6020 200:7421 201:5330 202:10581 203:10108
204:4644 205:3334 206:3535 207:3384 208:4010 209:4654
210:4261 211:2241 212:3684 213:3364 214:1211 215:62
216:6181 217:2511 218:1211 219:710 220:2073 221:986
222:880 223:1882
End of report
More information about the sanog
mailing list