[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 25 18:02:52 UTC 2022
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 26 Mar, 2022
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: 894229
Prefixes after maximum aggregation (per Origin AS): 336759
Deaggregation factor: 2.66
Unique aggregates announced (without unneeded subnets): 428489
Total ASes present in the Internet Routing Table: 72908
Prefixes per ASN: 12.27
Origin-only ASes present in the Internet Routing Table: 62546
Origin ASes announcing only one prefix: 25701
Transit ASes present in the Internet Routing Table: 10362
Transit-only ASes present in the Internet Routing Table: 381
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 65
Max AS path prepend of ASN (267602) 58
Prefixes from unregistered ASNs in the Routing Table: 868
Number of instances of unregistered ASNs: 874
Number of 32-bit ASNs allocated by the RIRs: 38896
Number of 32-bit ASNs visible in the Routing Table: 32344
Prefixes from 32-bit ASNs in the Routing Table: 151610
Number of bogon 32-bit ASNs visible in the Routing Table: 31
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 479
Number of addresses announced to Internet: 3068372992
Equivalent to 182 /8s, 227 /16s and 168 /24s
Percentage of available address space announced: 82.9
Percentage of allocated address space announced: 82.9
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: 303143
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 234292
Total APNIC prefixes after maximum aggregation: 66359
APNIC Deaggregation factor: 3.53
Prefixes being announced from the APNIC address blocks: 229205
Unique aggregates announced from the APNIC address blocks: 94106
APNIC Region origin ASes present in the Internet Routing Table: 12501
APNIC Prefixes per ASN: 18.33
APNIC Region origin ASes announcing only one prefix: 3558
APNIC Region transit ASes present in the Internet Routing Table: 1723
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7696
Number of APNIC addresses announced to Internet: 774201472
Equivalent to 46 /8s, 37 /16s and 96 /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, 131072-151865
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: 261013
Total ARIN prefixes after maximum aggregation: 119721
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 260865
Unique aggregates announced from the ARIN address blocks: 124035
ARIN Region origin ASes present in the Internet Routing Table: 18992
ARIN Prefixes per ASN: 13.74
ARIN Region origin ASes announcing only one prefix: 6895
ARIN Region transit ASes present in the Internet Routing Table: 1953
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4406
Number of ARIN addresses announced to Internet: 1295812864
Equivalent to 77 /8s, 60 /16s and 137 /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: 256375
Total RIPE prefixes after maximum aggregation: 117145
RIPE Deaggregation factor: 2.19
Prefixes being announced from the RIPE address blocks: 253772
Unique aggregates announced from the RIPE address blocks: 150114
RIPE Region origin ASes present in the Internet Routing Table: 28102
RIPE Prefixes per ASN: 9.03
RIPE Region origin ASes announcing only one prefix: 12050
RIPE Region transit ASes present in the Internet Routing Table: 3993
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: 10659
Number of RIPE addresses announced to Internet: 714103424
Equivalent to 42 /8s, 144 /16s and 90 /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: 114098
Total LACNIC prefixes after maximum aggregation: 27461
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 114067
Unique aggregates announced from the LACNIC address blocks: 48178
LACNIC Region origin ASes present in the Internet Routing Table: 10936
LACNIC Prefixes per ASN: 10.43
LACNIC Region origin ASes announcing only one prefix: 2635
LACNIC Region transit ASes present in the Internet Routing Table: 2204
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 65
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8632
Number of LACNIC addresses announced to Internet: 176288768
Equivalent to 10 /8s, 129 /16s and 244 /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: 27583
Total AfriNIC prefixes after maximum aggregation: 5417
AfriNIC Deaggregation factor: 5.09
Prefixes being announced from the AfriNIC address blocks: 35841
Unique aggregates announced from the AfriNIC address blocks: 11646
AfriNIC Region origin ASes present in the Internet Routing Table: 1618
AfriNIC Prefixes per ASN: 22.15
AfriNIC Region origin ASes announcing only one prefix: 563
AfriNIC Region transit ASes present in the Internet Routing Table: 325
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 34
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 951
Number of AfriNIC addresses announced to Internet: 107692288
Equivalent to 6 /8s, 107 /16s and 65 /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 9136 8884 44 CHINAMOBILE-CN China Mobile Communicati
7545 5903 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4707 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3600 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3487 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3434 1880 56 VNPT-AS-VN VNPT Corp, VN
4766 2498 11121 602 KIXS-AS-KR Korea Telecom, KR
9498 2389 491 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2146 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2108 429 197 TATACOMM-AS TATA Communications formerl
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 6299 10252 2665 AMAZON-02, US
11492 4452 295 717 CABLEONE, US
22773 3945 3061 366 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3895 263 26 VIASAT-SP-BACKBONE, US
16625 3648 1879 2562 AKAMAI-AS, US
6327 3418 1318 62 SHAW, CA
749 2882 50780 2138 DNIC-AS-00749, US
30036 2607 373 177 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2520 4962 428 CENTURYLINK-US-LEGACY-QWEST, US
20115 2256 3042 495 CHARTER-20115, 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 6807 1730 149 UNI2-AS, ES
9121 6721 1692 17 TTNET, TR
8551 4003 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3916 3360 200 AKAMAI-ASN1, NL
39891 3819 220 34 ALJAWWALSTC-AS, SA
12389 2960 2274 909 ROSTELECOM-AS, RU
6849 2783 355 21 UKRTELNET, UA
9009 2468 248 1287 M247, GB
34984 2199 355 622 TELLCOM-AS, TR
47331 2089 329 1599 TTNET, TR
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 10477 3408 551 Uninet S.A. de C.V., MX
10620 3473 519 715 Telmex Colombia S.A., CO
11830 2431 369 62 Instituto Costarricense de Electricidad
13999 1725 292 478 Mega Cable, S.A. de C.V., MX
6503 1446 354 524 Axtel, S.A.B. de C.V., MX
28573 1397 2332 253 CLARO S.A., BR
3816 1254 666 146 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1090 369 21 Telefonica del Peru S.A.A., PE
11664 1006 192 450 Techtel LMDS Comunicaciones Interactiva
11172 956 133 63 Alestra, S. de R.L. de C.V., MX
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 1584 393 21 LINKdotNET-AS, EG
24835 1518 515 32 RAYA-AS, EG
36992 1300 1518 261 ETISALAT-MISR, EG
36903 1199 545 114 MT-MPLS, MA
29571 911 64 63 ORANGE-COTE-IVOIRE, CI
6713 612 1863 34 IAM-AS, MA
36935 560 520 43 Vodafone-, EG
15399 514 51 34 WANANCHI-, KE
37342 469 32 1 MOVITEL, MZ
23889 422 232 16 MauritiusTelecom, MU
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 10477 3408 551 Uninet S.A. de C.V., MX
9808 9136 8884 44 CHINAMOBILE-CN China Mobile Communicati
12479 6807 1730 149 UNI2-AS, ES
9121 6721 1692 17 TTNET, TR
16509 6299 10252 2665 AMAZON-02, US
7545 5903 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4707 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4452 295 717 CABLEONE, US
8551 4003 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
22773 3945 3061 366 ASN-CXA-ALL-CCI-22773-RDC, 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 9136 9092 CHINAMOBILE-CN China Mobile Communications Grou
9121 6721 6704 TTNET, TR
12479 6807 6658 UNI2-AS, ES
7545 5903 5207 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4707 4633 ERX-CERNET-BKB China Education and Research Net
8551 4003 3964 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3895 3869 VIASAT-SP-BACKBONE, US
39891 3819 3785 ALJAWWALSTC-AS, SA
11492 4452 3735 CABLEONE, US
20940 3916 3716 AKAMAI-ASN1, NL
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
1333342 UNALLOCATED 2.58.228.0/22 133334 DCNBSI-AS-AP DCTV Cable Netw
398083 UNALLOCATED 5.104.72.0/24 399587 UT, US
398083 UNALLOCATED 5.133.124.0/24 399587 UT, US
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
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 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, 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
23.141.0.0/24 Origin: 395350 UNASSIGNED
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, 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
41.57.124.0/23 Origin: 37442 UNASSIGNED
41.57.124.0/23 Transit: 37204 TELONE, ZW
41.57.124.0/24 Origin: 37442 UNASSIGNED
41.57.124.0/24 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 /9:13 /10:40 /11:102 /12:307
/13:588 /14:1205 /15:2057 /16:13563 /17:8323 /18:13882
/19:25167 /20:43299 /21:52208 /22:108372 /23:95539 /24:528740
/25:808 /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
9121 5871 6721 TTNET, TR
12479 5788 6807 UNI2-AS, ES
8151 4133 10477 Uninet S.A. de C.V., MX
8551 3477 4003 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3364 4452 CABLEONE, US
6327 3230 3418 SHAW, CA
39891 3131 3819 ALJAWWALSTC-AS, SA
7155 2988 3895 VIASAT-SP-BACKBONE, US
22773 2936 3945 ASN-CXA-ALL-CCI-22773-RDC, US
6849 2636 2783 UKRTELNET, UA
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1842 2:1052 3:154 4:7 5:3781 6:112
7:5 8:1564 9:1 11:172 12:1710 13:301
14:2389 15:182 16:42 17:380 18:147 20:194
21:4 22:188 23:5550 24:2357 25:4 27:2600
29:19 31:2415 32:96 34:1 35:66 36:1752
37:4388 38:2685 39:710 40:150 41:3934 42:987
43:2100 44:291 45:16171 46:4062 47:348 49:1669
50:1926 51:107 52:1407 53:1 54:362 55:808
56:8 57:59 58:1816 59:1197 60:956 61:2269
62:2475 63:1942 64:5523 65:2302 66:4847 67:2974
68:1177 69:4165 70:1344 71:659 72:3072 74:2669
75:1389 76:700 77:2123 78:3895 79:3102 80:1976
81:1701 82:1476 83:1213 84:1350 85:3653 86:716
87:1973 88:2691 89:3247 90:519 91:7621 92:1975
93:2603 94:3474 95:4748 96:1311 97:348 98:993
99:866 100:75 101:1034 102:1993 103:28862 104:4310
105:464 106:853 107:2503 108:804 109:4146 110:2073
111:3285 112:2007 113:1523 114:1492 115:1962 116:1902
117:2517 118:2277 119:1866 120:1677 121:1063 122:2575
123:2120 124:1614 125:2113 128:1200 129:1212 130:916
131:2078 132:761 133:374 134:1931 135:290 136:878
137:866 138:2419 139:1494 140:1116 141:1359 142:1282
143:1482 144:1233 145:344 146:1774 147:1464 148:2216
149:1692 150:854 151:1079 152:1837 153:458 154:3542
155:1416 156:1886 157:1235 158:1030 159:2078 160:2433
161:1323 162:3461 163:1234 164:1645 165:1616 166:689
167:1719 168:3756 169:698 170:4440 171:817 172:3068
173:3072 174:1019 175:1126 176:3507 177:4561 178:3426
179:1983 180:2280 181:2934 182:3248 183:1941 184:2384
185:19461 186:4339 187:3650 188:3861 189:3118 190:8853
191:1294 192:11054 193:8560 194:6962 195:4976 196:2977
197:2391 198:6019 199:6029 200:7482 201:5652 202:10506
203:10013 204:4550 205:3386 206:3752 207:3391 208:4041
209:4660 210:4257 211:2433 212:3998 213:3381 214:1160
215:67 216:6444 217:2646 218:1259 219:597 220:1955
221:980 222:848 223:2142
End of report
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