[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Apr 17 20:17:04 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Thu 17 Apr, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 268767
Prefixes after maximum aggregation (per Origin AS): 117961
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 141415
Number of IPv4 prefixes with a valid ROA: 121255
Number of IPv4 prefixes with an invalid ROA: 17
Number of IPv4 prefixes with no ROA: 147495
Total ASes present in the Internet Routing Table: 20267
Prefixes per ASN: 13.26
Origin-only ASes present in the Internet Routing Table: 17507
Origin ASes announcing only one prefix: 7894
Transit ASes present in the Internet Routing Table: 2760
Transit-only ASes present in the Internet Routing Table: 723
Paths with bogon ASNs present in the IPv4 Routing Table: 6
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 349
Number of instances of unregistered ASNs: 350
Number of 32-bit ASNs allocated by the RIRs: 46228
Number of 32-bit ASNs visible in the Routing Table: 7632
Prefixes from 32-bit ASNs in the Routing Table: 29290
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 139
Number of addresses announced to Internet: 1562811069
Equivalent to 93 /8s, 38 /16s and 154 /24s
Percentage of available address space announced: 42.2
Percentage of allocated address space announced: 42.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 86122
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32199
Total APNIC prefixes after maximum aggregation: 7596
APNIC Deaggregation factor: 4.24
Prefixes being announced from the APNIC address blocks: 30807
Unique aggregates announced from the APNIC address blocks: 8086
APNIC Region origin ASes present in the Internet Routing Table: 1222
APNIC Prefixes per ASN: 25.21
APNIC Region origin ASes announcing only one prefix: 484
APNIC Region transit ASes present in the Internet Routing Table: 204
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 561
Number of APNIC addresses announced to Internet: 169154412
Equivalent to 10 /8s, 21 /16s and 23 /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, 131072-155961
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: 129134
Total ARIN prefixes after maximum aggregation: 66746
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 126558
Unique aggregates announced from the ARIN address blocks: 68865
ARIN Region origin ASes present in the Internet Routing Table: 9655
ARIN Prefixes per ASN: 13.11
ARIN Region origin ASes announcing only one prefix: 3977
ARIN Region transit ASes present in the Internet Routing Table: 921
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2265
Number of ARIN addresses announced to Internet: 972234689
Equivalent to 57 /8s, 243 /16s and 31 /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, 393216-402332
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, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 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: 49723
Total RIPE prefixes after maximum aggregation: 26884
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 51271
Unique aggregates announced from the RIPE address blocks: 37661
RIPE Region origin ASes present in the Internet Routing Table: 4643
RIPE Prefixes per ASN: 11.04
RIPE Region origin ASes announcing only one prefix: 1954
RIPE Region transit ASes present in the Internet Routing Table: 696
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1897
Number of RIPE addresses announced to Internet: 280990288
Equivalent to 16 /8s, 191 /16s and 146 /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
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 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: 47058
Total LACNIC prefixes after maximum aggregation: 14276
LACNIC Deaggregation factor: 3.30
Prefixes being announced from the LACNIC address blocks: 46055
Unique aggregates announced from the LACNIC address blocks: 22037
LACNIC Region origin ASes present in the Internet Routing Table: 3617
LACNIC Prefixes per ASN: 12.73
LACNIC Region origin ASes announcing only one prefix: 1364
LACNIC Region transit ASes present in the Internet Routing Table: 727
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 34
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2762
Number of LACNIC addresses announced to Internet: 97695040
Equivalent to 5 /8s, 210 /16s and 181 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 10304
Total AfriNIC prefixes after maximum aggregation: 2231
AfriNIC Deaggregation factor: 4.62
Prefixes being announced from the AfriNIC address blocks: 13937
Unique aggregates announced from the AfriNIC address blocks: 4632
AfriNIC Region origin ASes present in the Internet Routing Table: 272
AfriNIC Prefixes per ASN: 51.24
AfriNIC Region origin ASes announcing only one prefix: 115
AfriNIC Region transit ASes present in the Internet Routing Table: 77
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 147
Number of AfriNIC addresses announced to Internet: 42680576
Equivalent to 2 /8s, 139 /16s and 65 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 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 10163 8753 88 CHINAMOBILE-CN China Mobile Communication
56046 1590 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1484 192 53 CMNET-HUNAN-AP China Mobile communication
24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
45102 566 879 138 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
17561 479 31 198 LCS-AS-AP LARUS Limited, HK
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13180 39690 4115 AMAZON-02, US
22773 3394 3017 179 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54879 2505 DNIC-AS-00749, US
4155 2637 201 1604 USDA-1, US
367 2464 2889 1192 DNIC-ASBLK-00306-00371, US
36352 2403 199 1085 AS-COLOCROSSING, US
7018 2151 22903 1572 ATT-INTERNET4, US
11776 1892 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1831 3625 459 CELLCO-PART, US
209 1666 4890 275 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1297 100 1044 AKAMAI-ASN1, NL
34984 931 93 523 TELLCOM-AS, TR
3257 930 2075 747 GTT-BACKBONE GTT, US
3215 893 4810 292 France Telecom - Orange, FR
25019 850 1299 129 SAUDINETSTC-AS, SA
8452 657 1842 17 TE-AS TE-AS, EG
8376 578 53 23 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
212238 563 40 495 CDNEXT, GB
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7381 2022 1008 UNINET, MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
10620 1929 286 1300 Telmex Colombia S.A., CO
3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1190 371 21 Telefonica del Peru S.A.A., PE
26615 989 2503 52 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 642 77 294 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 548 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1488 389 16 LINKdotNET-AS, EG
20011 981 185 285 INTERNET-SOLUTIONS, ZA
29571 957 100 75 ORANGE-COTE-IVOIRE, CI
24835 879 528 38 RAYA-AS, EG
36935 700 519 48 Vodafone-, EG
36992 601 1228 123 ETISALAT-MISR, EG
36914 551 82 3 KENET-AS, KE
37069 533 1046 15 MOBINIL, EG
36903 410 192 301 MT-MPLS, MA
2018 373 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13180 39690 4115 AMAZON-02, US
9808 10163 8753 88 CHINAMOBILE-CN China Mobile Communication
8151 7381 2022 1008 UNINET, MX
22773 3394 3017 179 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54879 2505 DNIC-AS-00749, US
4155 2637 201 1604 USDA-1, US
367 2464 2889 1192 DNIC-ASBLK-00306-00371, US
36352 2403 199 1085 AS-COLOCROSSING, US
7018 2151 22903 1572 ATT-INTERNET4, US
11830 1993 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10163 10075 CHINAMOBILE-CN China Mobile Communications Grou
8151 7381 6373 UNINET, MX
22773 3394 3215 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1892 1676 ATLANTICBB-JOHNSTOWN, US
56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1488 1472 LINKdotNET-AS, EG
56047 1484 1431 CMNET-HUNAN-AP China Mobile communications corp
56046 1590 1404 CMNET-JIANGSU-AP China Mobile communications co
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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://bgp.nsrc.org/REN/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
23.166.120.0/24 Origin: 59993 UILLLC-20230328, US
23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:42 /12:150
/13:216 /14:577 /15:1097 /16:7601 /17:3476 /18:4262
/19:7824 /20:12707 /21:15635 /22:28219 /23:28157 /24:158537
/25:60 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3892 7381 UNINET, MX
22773 2534 3394 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2350 13180 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
10620 1088 1929 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 975 2403 AS-COLOCROSSING, US
209 965 1666 CENTURYLINK-US-LEGACY-QWEST, US
19901 944 1202 BRSPD-PUBLIC, US
11776 881 1892 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:67 2:460 3:611 4:5 5:834 6:150
7:5 8:648 11:171 12:1007 13:295 14:139
15:301 16:244 17:5 18:889 20:172 21:4
22:188 23:2681 24:668 27:21 29:19 31:476
32:10 34:12 35:134 36:1229 37:1005 38:2023
39:549 40:62 41:902 42:221 43:199 44:50
45:3754 46:951 47:98 49:18 50:378 51:383
52:1391 54:274 55:1080 56:11 57:20 58:45
59:43 60:16 61:72 62:556 63:785 64:2083
65:1110 66:1688 67:1016 68:440 69:1241 70:429
71:210 72:780 74:1026 75:431 76:262 77:476
78:333 79:278 80:304 81:352 82:766 83:250
84:370 85:487 86:236 87:244 88:279 89:829
90:105 91:985 92:614 93:451 94:958 95:679
96:299 97:67 98:484 99:158 100:37 101:23
102:369 103:1258 104:1515 105:138 106:33 107:1503
108:550 109:400 110:65 111:1915 112:451 113:37
114:60 115:14 116:57 117:1034 118:165 119:133
120:1166 121:44 122:128 123:152 124:58 125:25
128:503 129:305 130:674 131:912 132:564 133:213
134:503 135:118 136:600 137:511 138:946 139:440
140:720 141:432 142:1048 143:663 144:430 145:113
146:699 147:522 148:875 149:801 150:379 151:636
152:550 153:131 154:1633 155:795 156:1306 157:371
158:540 159:692 160:827 161:723 162:1047 163:377
164:720 165:847 166:781 167:660 168:1187 169:163
170:1673 171:124 172:1428 173:941 174:287 175:54
176:845 177:875 178:529 179:732 180:47 181:1895
182:29 183:860 184:498 185:3422 186:2313 187:1363
188:786 189:1700 190:4943 191:421 192:5270 193:1841
194:1224 195:954 196:777 197:1565 198:2773 199:4954
200:3834 201:3275 202:1001 203:732 204:2226 205:1977
206:1583 207:1547 208:1487 209:2064 210:308 211:430
212:983 213:883 214:989 215:42 216:2649 217:428
218:518 219:19 220:25 221:304 222:32 223:740
End of report
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