[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu May 15 20:17:05 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Thu 15 May, 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: 263386
Prefixes after maximum aggregation (per Origin AS): 115260
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 134668
Number of IPv4 prefixes with a valid ROA: 118424
Number of IPv4 prefixes with an invalid ROA: 28
Number of IPv4 prefixes with no ROA: 144934
Total ASes present in the Internet Routing Table: 19738
Prefixes per ASN: 13.34
Origin-only ASes present in the Internet Routing Table: 17077
Origin ASes announcing only one prefix: 7745
Transit ASes present in the Internet Routing Table: 2661
Transit-only ASes present in the Internet Routing Table: 716
Paths with bogon ASNs present in the IPv4 Routing Table: 9
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: 315
Number of instances of unregistered ASNs: 319
Number of 32-bit ASNs allocated by the RIRs: 46405
Number of 32-bit ASNs visible in the Routing Table: 7415
Prefixes from 32-bit ASNs in the Routing Table: 27777
Number of bogon 32-bit ASNs visible in the Routing Table: 10
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 136
Number of addresses announced to Internet: 1554357469
Equivalent to 92 /8s, 165 /16s and 156 /24s
Percentage of available address space announced: 42.0
Percentage of allocated address space announced: 42.0
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: 83234
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32375
Total APNIC prefixes after maximum aggregation: 7540
APNIC Deaggregation factor: 4.29
Prefixes being announced from the APNIC address blocks: 30798
Unique aggregates announced from the APNIC address blocks: 7616
APNIC Region origin ASes present in the Internet Routing Table: 1205
APNIC Prefixes per ASN: 25.56
APNIC Region origin ASes announcing only one prefix: 479
APNIC Region transit ASes present in the Internet Routing Table: 200
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: 553
Number of APNIC addresses announced to Internet: 167641708
Equivalent to 9 /8s, 254 /16s and 2 /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: 125722
Total ARIN prefixes after maximum aggregation: 65412
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 122834
Unique aggregates announced from the ARIN address blocks: 66046
ARIN Region origin ASes present in the Internet Routing Table: 9340
ARIN Prefixes per ASN: 13.15
ARIN Region origin ASes announcing only one prefix: 3895
ARIN Region transit ASes present in the Internet Routing Table: 865
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: 2179
Number of ARIN addresses announced to Internet: 960912865
Equivalent to 57 /8s, 70 /16s and 93 /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: 48858
Total RIPE prefixes after maximum aggregation: 26438
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 50628
Unique aggregates announced from the RIPE address blocks: 36798
RIPE Region origin ASes present in the Internet Routing Table: 4597
RIPE Prefixes per ASN: 11.01
RIPE Region origin ASes announcing only one prefix: 1921
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: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1871
Number of RIPE addresses announced to Internet: 281251408
Equivalent to 16 /8s, 195 /16s and 142 /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: 45221
Total LACNIC prefixes after maximum aggregation: 13317
LACNIC Deaggregation factor: 3.40
Prefixes being announced from the LACNIC address blocks: 44269
Unique aggregates announced from the LACNIC address blocks: 19909
LACNIC Region origin ASes present in the Internet Routing Table: 3470
LACNIC Prefixes per ASN: 12.76
LACNIC Region origin ASes announcing only one prefix: 1340
LACNIC Region transit ASes present in the Internet Routing Table: 691
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2660
Number of LACNIC addresses announced to Internet: 97773120
Equivalent to 5 /8s, 211 /16s and 230 /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: 10895
Total AfriNIC prefixes after maximum aggregation: 2341
AfriNIC Deaggregation factor: 4.65
Prefixes being announced from the AfriNIC address blocks: 14721
Unique aggregates announced from the AfriNIC address blocks: 4181
AfriNIC Region origin ASes present in the Internet Routing Table: 283
AfriNIC Prefixes per ASN: 52.02
AfriNIC Region origin ASes announcing only one prefix: 110
AfriNIC Region transit ASes present in the Internet Routing Table: 78
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: 152
Number of AfriNIC addresses announced to Internet: 46726400
Equivalent to 2 /8s, 200 /16s and 253 /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 10803 8756 95 CHINAMOBILE-CN China Mobile Communication
56046 1772 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1572 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1485 192 53 CMNET-HUNAN-AP China Mobile communication
24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
17561 856 54 403 LCS-AS-AP LARUS Limited, HK
24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 602 2170 465 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 512 848 137 ALIBABA-CN-NET Alibaba US Technology Co.,
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 13397 40827 4981 AMAZON-02, US
22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3243 54815 2494 DNIC-AS-00749, US
4155 2723 207 1662 USDA-1, US
36352 2526 208 1118 AS-COLOCROSSING, US
367 2485 2907 1183 DNIC-ASBLK-00306-00371, US
7018 2094 22887 1543 ATT-INTERNET4, US
11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1858 3753 487 CELLCO-PART, US
209 1663 4890 273 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 1178 92 969 AKAMAI-ASN1, NL
3257 932 2077 749 GTT-BACKBONE GTT, US
3215 895 4818 289 France Telecom - Orange, FR
25019 815 1301 129 SAUDINETSTC-AS, SA
8452 709 1842 17 TE-AS TE-AS, EG
34984 688 76 411 TELLCOM-AS, TR
212238 626 44 552 CDNEXT, GB
8376 570 53 21 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
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 7857 2132 957 UNINET, MX
11830 1996 369 64 Instituto Costarricense de Electricidad y
10620 1902 280 1293 Telmex Colombia S.A., CO
3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1197 371 22 Telefonica del Peru S.A.A., PE
26615 1027 2503 52 TIM SA, BR
18881 882 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 644 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 552 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 1493 389 16 LINKdotNET-AS, EG
24835 1036 523 36 RAYA-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
29571 980 100 75 ORANGE-COTE-IVOIRE, CI
36992 603 1228 124 ETISALAT-MISR, EG
36935 585 125 166 Vodafone-, EG
36914 552 82 3 KENET-AS, KE
37069 494 1046 15 MOBINIL, EG
36903 446 199 325 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 13397 40827 4981 AMAZON-02, US
9808 10803 8756 95 CHINAMOBILE-CN China Mobile Communication
8151 7857 2132 957 UNINET, MX
22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3243 54815 2494 DNIC-AS-00749, US
4155 2723 207 1662 USDA-1, US
36352 2526 208 1118 AS-COLOCROSSING, US
367 2485 2907 1183 DNIC-ASBLK-00306-00371, US
7018 2094 22887 1543 ATT-INTERNET4, US
11830 1996 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 10803 10708 CHINAMOBILE-CN China Mobile Communications Grou
8151 7857 6900 UNINET, MX
22773 3345 3181 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1996 1932 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1895 1679 ATLANTICBB-JOHNSTOWN, US
56046 1772 1586 CMNET-JIANGSU-AP China Mobile communications co
56041 1572 1494 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1493 1477 LINKdotNET-AS, EG
56047 1485 1432 CMNET-HUNAN-AP China Mobile communications corp
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
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
396831 UNALLOCATED 12.23.198.0/24 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
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US
41.204.224.0/24 Origin: 36911 RESERVED, ZZ
41.204.224.0/24 Transit: 328766 RESERVED, ZZ
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 /12:151
/13:208 /14:573 /15:1099 /16:7633 /17:3452 /18:4216
/19:7703 /20:12365 /21:15368 /22:27363 /23:27821 /24:155118
/25:62 /26:80 /27:35 /28:13 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 4207 7857 UNINET, MX
22773 2499 3345 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2328 13397 AMAZON-02, US
11830 1697 1996 Instituto Costarricense de Electricidad y Telecom., CR
10620 1081 1902 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1009 2526 AS-COLOCROSSING, US
19901 973 1259 BRSPD-PUBLIC, US
209 964 1663 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1895 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:19 2:471 3:734 4:6 5:788 6:156
7:5 8:678 11:171 12:996 13:362 14:113
15:301 16:246 17:6 18:886 20:177 21:4
22:188 23:2598 24:640 27:21 29:19 31:477
32:9 33:1 34:10 35:133 36:1713 37:894
38:1980 39:554 40:62 41:935 42:21 43:195
44:35 45:3601 46:962 47:92 49:17 50:363
51:386 52:1387 54:311 55:1094 56:11 57:18
58:17 59:15 60:16 61:75 62:544 63:765
64:2001 65:1087 66:1586 67:958 68:394 69:1131
70:410 71:202 72:742 74:961 75:427 76:248
77:468 78:365 79:286 80:299 81:388 82:738
83:234 84:341 85:450 86:234 87:228 88:292
89:855 90:104 91:931 92:611 93:475 94:917
95:623 96:289 97:59 98:454 99:179 100:35
101:25 102:391 103:1204 104:1624 105:217 106:16
107:1523 108:546 109:384 110:35 111:1957 112:460
113:39 114:40 115:18 116:62 117:1047 118:39
119:121 120:1219 121:45 122:58 123:78 124:57
125:25 128:490 129:392 130:691 131:896 132:563
133:212 134:492 135:113 136:648 137:501 138:866
139:429 140:700 141:463 142:1023 143:687 144:435
145:136 146:690 147:494 148:868 149:775 150:352
151:641 152:494 153:129 154:1689 155:845 156:1429
157:370 158:549 159:689 160:822 161:668 162:970
163:359 164:719 165:775 166:790 167:629 168:1108
169:149 170:1620 171:125 172:1374 173:837 174:252
175:61 176:679 177:824 178:487 179:683 180:49
181:1824 182:28 183:930 184:449 185:3424 186:2033
187:1414 188:797 189:1811 190:4265 191:446 192:5165
193:1849 194:1225 195:937 196:706 197:1570 198:2733
199:4900 200:3586 201:3345 202:990 203:723 204:2162
205:1880 206:1538 207:1504 208:1441 209:1936 210:290
211:437 212:990 213:840 214:986 215:42 216:2527
217:425 218:520 219:19 220:26 221:340 222:31
223:793
End of report
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