[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Jun 12 20:16:35 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Thu 12 Jun, 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: 261939
Prefixes after maximum aggregation (per Origin AS): 115283
Deaggregation factor: 2.27
Unique aggregates announced (without unneeded subnets): 135675
Number of IPv4 prefixes with a valid ROA: 118463
Number of IPv4 prefixes with an invalid ROA: 42
Number of IPv4 prefixes with no ROA: 143434
Total ASes present in the Internet Routing Table: 19678
Prefixes per ASN: 13.31
Origin-only ASes present in the Internet Routing Table: 16982
Origin ASes announcing only one prefix: 7685
Transit ASes present in the Internet Routing Table: 2696
Transit-only ASes present in the Internet Routing Table: 726
Paths with bogon ASNs present in the IPv4 Routing Table: 13
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 30
Max AS path prepend of ASN (265171) 25
Prefixes from unregistered ASNs in the Routing Table: 372
Number of instances of unregistered ASNs: 404
Number of 32-bit ASNs allocated by the RIRs: 46631
Number of 32-bit ASNs visible in the Routing Table: 7448
Prefixes from 32-bit ASNs in the Routing Table: 28128
Number of bogon 32-bit ASNs visible in the Routing Table: 74
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 1556873437
Equivalent to 92 /8s, 204 /16s and 0 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 42.1
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: 83100
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31953
Total APNIC prefixes after maximum aggregation: 7066
APNIC Deaggregation factor: 4.52
Prefixes being announced from the APNIC address blocks: 31005
Unique aggregates announced from the APNIC address blocks: 7318
APNIC Region origin ASes present in the Internet Routing Table: 1184
APNIC Prefixes per ASN: 26.19
APNIC Region origin ASes announcing only one prefix: 462
APNIC Region transit ASes present in the Internet Routing Table: 188
Average APNIC Region AS path length visible: 7.4
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 548
Number of APNIC addresses announced to Internet: 166364780
Equivalent to 9 /8s, 234 /16s and 134 /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: 124835
Total ARIN prefixes after maximum aggregation: 65551
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 122307
Unique aggregates announced from the ARIN address blocks: 66124
ARIN Region origin ASes present in the Internet Routing Table: 9295
ARIN Prefixes per ASN: 13.16
ARIN Region origin ASes announcing only one prefix: 3863
ARIN Region transit ASes present in the Internet Routing Table: 868
Average ARIN Region AS path length visible: 5.4
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2193
Number of ARIN addresses announced to Internet: 961053153
Equivalent to 57 /8s, 72 /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, 393216-402332
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: 49668
Total RIPE prefixes after maximum aggregation: 26691
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 51475
Unique aggregates announced from the RIPE address blocks: 37457
RIPE Region origin ASes present in the Internet Routing Table: 4620
RIPE Prefixes per ASN: 11.14
RIPE Region origin ASes announcing only one prefix: 1937
RIPE Region transit ASes present in the Internet Routing Table: 704
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1915
Number of RIPE addresses announced to Internet: 286643792
Equivalent to 17 /8s, 21 /16s and 214 /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: 44052
Total LACNIC prefixes after maximum aggregation: 13314
LACNIC Deaggregation factor: 3.31
Prefixes being announced from the LACNIC address blocks: 43155
Unique aggregates announced from the LACNIC address blocks: 19837
LACNIC Region origin ASes present in the Internet Routing Table: 3427
LACNIC Prefixes per ASN: 12.59
LACNIC Region origin ASes announcing only one prefix: 1314
LACNIC Region transit ASes present in the Internet Routing Table: 713
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: 2633
Number of LACNIC addresses announced to Internet: 96490304
Equivalent to 5 /8s, 192 /16s and 83 /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: 11059
Total AfriNIC prefixes after maximum aggregation: 2397
AfriNIC Deaggregation factor: 4.61
Prefixes being announced from the AfriNIC address blocks: 13887
Unique aggregates announced from the AfriNIC address blocks: 4830
AfriNIC Region origin ASes present in the Internet Routing Table: 292
AfriNIC Prefixes per ASN: 47.56
AfriNIC Region origin ASes announcing only one prefix: 109
AfriNIC Region transit ASes present in the Internet Routing Table: 76
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 159
Number of AfriNIC addresses announced to Internet: 46274560
Equivalent to 2 /8s, 194 /16s and 24 /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 10894 8758 99 CHINAMOBILE-CN China Mobile Communication
56046 2101 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1634 718 90 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1481 192 50 CMNET-HUNAN-AP China Mobile communication
24547 867 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 605 2170 465 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 513 848 135 ALIBABA-CN-NET Alibaba US Technology Co.,
17676 462 8751 151 GIGAINFRA SoftBank Corp., JP
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 13681 40940 5237 AMAZON-02, US
22773 3343 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US
749 3229 54783 2480 DNIC-AS-00749, US
4155 2796 212 1709 USDA-1, US
36352 2557 210 1129 AS-COLOCROSSING, US
367 2429 3155 1160 DNIC-ASBLK-00306-00371, US
7018 1990 22873 1466 ATT-INTERNET4, US
6167 1903 3929 507 CELLCO-PART, US
11776 1899 259 214 ATLANTICBB-JOHNSTOWN, US
209 1659 4889 270 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 1155 90 942 AKAMAI-ASN1, NL
3257 1001 2081 782 GTT-BACKBONE GTT, US
3215 888 4818 291 France Telecom - Orange, FR
25019 811 1301 129 SAUDINETSTC-AS, SA
8452 782 1841 16 TE-AS TE-AS, EG
34984 678 74 411 TELLCOM-AS, TR
212238 629 45 555 CDNEXT, GB
51167 568 113 251 CONTABO, DE
8376 564 53 22 Jordan Data Communications, JO
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 7120 1926 914 UNINET, MX
11830 1990 369 64 Instituto Costarricense de Electricidad y
10620 1667 243 1208 Telmex Colombia S.A., CO
3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1200 371 22 Telefonica del Peru S.A.A., PE
26615 1035 2503 52 TIM SA, BR
18881 884 1127 31 TELEFONICA BRASIL S.A, BR
28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 627 90 33 ENTEL CHILE S.A., CL
6503 532 346 131 Axtel, S.A.B. de C.V., MX
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 1463 389 16 LINKdotNET-AS, EG
24835 1079 535 35 RAYA-AS, EG
29571 1021 100 74 ORANGE-COTE-IVOIRE, CI
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36992 604 1228 124 ETISALAT-MISR, EG
36935 596 127 172 Vodafone-, EG
36914 566 82 3 KENET-AS, KE
37069 469 1046 15 MOBINIL, EG
36903 456 204 330 MT-MPLS, MA
2018 374 318 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 13681 40940 5237 AMAZON-02, US
9808 10894 8758 99 CHINAMOBILE-CN China Mobile Communication
8151 7120 1926 914 UNINET, MX
22773 3343 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US
749 3229 54783 2480 DNIC-AS-00749, US
4155 2796 212 1709 USDA-1, US
36352 2557 210 1129 AS-COLOCROSSING, US
367 2429 3155 1160 DNIC-ASBLK-00306-00371, US
56046 2101 811 188 CMNET-JIANGSU-AP China Mobile communicati
7018 1990 22873 1466 ATT-INTERNET4, US
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 10894 10795 CHINAMOBILE-CN China Mobile Communications Grou
8151 7120 6206 UNINET, MX
22773 3343 3177 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1990 1926 Instituto Costarricense de Electricidad y Telec
56046 2101 1913 CMNET-JIANGSU-AP China Mobile communications co
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1899 1685 ATLANTICBB-JOHNSTOWN, US
56041 1634 1544 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1463 1447 LINKdotNET-AS, EG
56047 1481 1431 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
394804 UNALLOCATED 8.33.225.0/24 3356 LEVEL3, 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
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
41.204.224.0/24 Origin: 36911 RESERVED, ZZ
41.204.224.0/24 Transit: 328766 RESERVED, ZZ
41.204.226.0/24 Origin: 36911 RESERVED, ZZ
41.204.226.0/24 Transit: 328766 RESERVED, ZZ
41.204.227.0/24 Origin: 36911 RESERVED, ZZ
41.204.227.0/24 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 /10:30 /11:41 /12:151
/13:208 /14:573 /15:1101 /16:7628 /17:3431 /18:4214
/19:7529 /20:12538 /21:15049 /22:27271 /23:27734 /24:154197
/25:62 /26:81 /27:33 /28:13 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3879 7120 UNINET, MX
22773 2495 3343 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2376 13681 AMAZON-02, US
11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1032 2557 AS-COLOCROSSING, US
19901 989 1289 BRSPD-PUBLIC, US
209 964 1659 CENTURYLINK-US-LEGACY-QWEST, US
10620 962 1667 Telmex Colombia S.A., CO
11776 883 1899 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 2:452 3:812 4:5 5:806 6:149
7:5 8:668 11:171 12:973 13:395 14:114
15:305 16:247 17:4 18:891 20:187 21:4
22:188 23:2606 24:703 27:22 29:19 31:557
32:9 33:1 34:10 35:180 36:1898 37:876
38:1941 39:550 40:63 41:961 42:21 43:191
44:35 45:3536 46:986 47:93 49:20 50:359
51:387 52:1398 54:321 55:1089 56:11 57:22
58:16 59:29 60:16 61:75 62:539 63:746
64:1964 65:1084 66:1534 67:991 68:400 69:1142
70:475 71:195 72:647 74:933 75:320 76:248
77:484 78:356 79:292 80:300 81:373 82:732
83:237 84:338 85:420 86:239 87:209 88:298
89:714 90:104 91:944 92:632 93:497 94:917
95:682 96:290 97:53 98:458 99:191 100:36
101:21 102:346 103:1197 104:1659 105:216 106:3
107:1563 108:545 109:399 110:35 111:1921 112:521
113:36 114:41 115:24 116:56 117:1043 118:58
119:83 120:1298 121:43 122:67 123:76 124:61
125:25 128:484 129:396 130:671 131:928 132:556
133:211 134:453 135:124 136:603 137:502 138:826
139:425 140:709 141:359 142:1030 143:694 144:428
145:119 146:685 147:507 148:894 149:774 150:212
151:642 152:472 153:130 154:1178 155:866 156:1028
157:372 158:558 159:744 160:808 161:640 162:1024
163:417 164:712 165:525 166:799 167:649 168:1123
169:160 170:1610 171:124 172:1359 173:809 174:286
175:69 176:797 177:830 178:517 179:672 180:41
181:1761 182:25 183:972 184:453 185:3523 186:2062
187:1464 188:833 189:1759 190:4113 191:456 192:5187
193:1896 194:1241 195:923 196:680 197:1603 198:2736
199:4946 200:3621 201:3313 202:949 203:704 204:2158
205:1730 206:1524 207:1547 208:1459 209:1941 210:295
211:426 212:1041 213:754 214:934 215:37 216:2544
217:413 218:526 219:18 220:28 221:390 222:24
223:890
End of report
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