[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon Jun 23 20:16:38 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Mon 23 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: 262499
Prefixes after maximum aggregation (per Origin AS): 115604
Deaggregation factor: 2.27
Unique aggregates announced (without unneeded subnets): 135872
Number of IPv4 prefixes with a valid ROA: 119045
Number of IPv4 prefixes with an invalid ROA: 42
Number of IPv4 prefixes with no ROA: 143412
Total ASes present in the Internet Routing Table: 19658
Prefixes per ASN: 13.35
Origin-only ASes present in the Internet Routing Table: 16987
Origin ASes announcing only one prefix: 7722
Transit ASes present in the Internet Routing Table: 2671
Transit-only ASes present in the Internet Routing Table: 690
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: 41
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 373
Number of instances of unregistered ASNs: 405
Number of 32-bit ASNs allocated by the RIRs: 46701
Number of 32-bit ASNs visible in the Routing Table: 7428
Prefixes from 32-bit ASNs in the Routing Table: 28771
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: 108
Number of addresses announced to Internet: 1556474373
Equivalent to 92 /8s, 197 /16s and 234 /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: 83436
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32658
Total APNIC prefixes after maximum aggregation: 7274
APNIC Deaggregation factor: 4.49
Prefixes being announced from the APNIC address blocks: 31698
Unique aggregates announced from the APNIC address blocks: 7578
APNIC Region origin ASes present in the Internet Routing Table: 1200
APNIC Prefixes per ASN: 26.41
APNIC Region origin ASes announcing only one prefix: 470
APNIC Region transit ASes present in the Internet Routing Table: 191
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 562
Number of APNIC addresses announced to Internet: 166810476
Equivalent to 9 /8s, 241 /16s and 83 /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: 124648
Total ARIN prefixes after maximum aggregation: 65782
ARIN Deaggregation factor: 1.89
Prefixes being announced from the ARIN address blocks: 122402
Unique aggregates announced from the ARIN address blocks: 66387
ARIN Region origin ASes present in the Internet Routing Table: 9308
ARIN Prefixes per ASN: 13.15
ARIN Region origin ASes announcing only one prefix: 3876
ARIN Region transit ASes present in the Internet Routing Table: 868
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: 2199
Number of ARIN addresses announced to Internet: 959020297
Equivalent to 57 /8s, 41 /16s and 125 /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: 49670
Total RIPE prefixes after maximum aggregation: 26804
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 51506
Unique aggregates announced from the RIPE address blocks: 37566
RIPE Region origin ASes present in the Internet Routing Table: 4615
RIPE Prefixes per ASN: 11.16
RIPE Region origin ASes announcing only one prefix: 1933
RIPE Region transit ASes present in the Internet Routing Table: 692
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 41
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1909
Number of RIPE addresses announced to Internet: 286607184
Equivalent to 17 /8s, 21 /16s and 71 /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: 44286
Total LACNIC prefixes after maximum aggregation: 13143
LACNIC Deaggregation factor: 3.37
Prefixes being announced from the LACNIC address blocks: 43405
Unique aggregates announced from the LACNIC address blocks: 19612
LACNIC Region origin ASes present in the Internet Routing Table: 3409
LACNIC Prefixes per ASN: 12.73
LACNIC Region origin ASes announcing only one prefix: 1324
LACNIC Region transit ASes present in the Internet Routing Table: 701
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2593
Number of LACNIC addresses announced to Internet: 97211456
Equivalent to 5 /8s, 203 /16s and 84 /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: 10864
Total AfriNIC prefixes after maximum aggregation: 2337
AfriNIC Deaggregation factor: 4.65
Prefixes being announced from the AfriNIC address blocks: 13380
Unique aggregates announced from the AfriNIC address blocks: 4622
AfriNIC Region origin ASes present in the Internet Routing Table: 305
AfriNIC Prefixes per ASN: 43.87
AfriNIC Region origin ASes announcing only one prefix: 119
AfriNIC Region transit ASes present in the Internet Routing Table: 74
Average AfriNIC Region AS path length visible: 6.4
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 165
Number of AfriNIC addresses announced to Internet: 46778624
Equivalent to 2 /8s, 201 /16s and 201 /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 11057 8759 104 CHINAMOBILE-CN China Mobile Communication
56046 2132 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1670 718 90 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication
24547 868 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 613 2170 465 SINET-AS Research Organization of Informa
45102 530 856 135 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 523 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
132525 456 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile
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 13581 40951 5204 AMAZON-02, US
22773 3345 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3227 54767 2478 DNIC-AS-00749, US
4155 2808 213 1715 USDA-1, US
36352 2556 210 1130 AS-COLOCROSSING, US
7018 1929 22867 1439 ATT-INTERNET4, US
367 1920 2288 998 DNIC-ASBLK-00306-00371, US
6167 1910 3953 511 CELLCO-PART, US
11776 1901 259 214 ATLANTICBB-JOHNSTOWN, US
209 1658 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 1192 92 967 AKAMAI-ASN1, NL
3257 1023 2081 792 GTT-BACKBONE GTT, US
3215 887 4818 291 France Telecom - Orange, FR
25019 816 1301 129 SAUDINETSTC-AS, SA
8452 788 1841 16 TE-AS TE-AS, EG
34984 678 74 412 TELLCOM-AS, TR
212238 651 47 576 CDNEXT, GB
8376 572 53 24 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 7373 1993 932 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1672 243 1210 Telmex Colombia S.A., CO
3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1196 371 22 Telefonica del Peru S.A.A., PE
26615 1047 2503 52 TIM SA, BR
18881 885 1127 31 TELEFONICA BRASIL S.A, BR
28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 627 90 33 ENTEL CHILE S.A., CL
6503 529 346 132 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 1451 389 16 LINKdotNET-AS, EG
29571 1159 101 74 ORANGE-COTE-IVOIRE, CI
24835 1063 475 106 RAYA-AS, EG
36935 609 520 50 Vodafone-, EG
36914 571 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36992 551 1192 124 ETISALAT-MISR, EG
37069 451 1046 15 MOBINIL, EG
36903 439 196 324 MT-MPLS, MA
2018 375 318 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 13581 40951 5204 AMAZON-02, US
9808 11057 8759 104 CHINAMOBILE-CN China Mobile Communication
8151 7373 1993 932 UNINET, MX
22773 3345 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3227 54767 2478 DNIC-AS-00749, US
4155 2808 213 1715 USDA-1, US
36352 2556 210 1130 AS-COLOCROSSING, US
56046 2132 811 188 CMNET-JIANGSU-AP China Mobile communicati
11830 1987 369 64 Instituto Costarricense de Electricidad y
39891 1936 130 50 ALJAWWALSTC-AS, SA
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 11057 10953 CHINAMOBILE-CN China Mobile Communications Grou
8151 7373 6441 UNINET, MX
22773 3345 3182 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2132 1944 CMNET-JIANGSU-AP China Mobile communications co
11830 1987 1923 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1901 1687 ATLANTICBB-JOHNSTOWN, US
56041 1670 1580 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1451 1435 LINKdotNET-AS, EG
56047 1482 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
41.77.208.0/22 Origin: 37475 RESERVED, ZZ
41.77.208.0/22 Transit: 15964 CAMNET-AS, CM
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
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 /11:42 /12:151
/13:207 /14:572 /15:1091 /16:7554 /17:3434 /18:4187
/19:7588 /20:12553 /21:15288 /22:27266 /23:27813 /24:154476
/25:63 /26:81 /27:34 /28:13 /29:17 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3991 7373 UNINET, MX
22773 2500 3345 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2343 13581 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1032 2556 AS-COLOCROSSING, US
19901 1010 1314 BRSPD-PUBLIC, US
10620 967 1672 Telmex Colombia S.A., CO
209 963 1658 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1901 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 2:456 3:817 4:5 5:805 6:128
7:5 8:657 11:171 12:970 13:391 14:115
15:306 16:247 17:4 18:885 20:188 21:4
22:188 23:2632 24:712 27:21 29:19 31:519
32:12 33:1 34:10 35:180 36:1951 37:863
38:2005 39:550 40:64 41:1034 42:20 43:221
44:34 45:3526 46:971 47:96 49:21 50:358
51:387 52:1389 54:316 55:976 56:11 57:22
58:16 59:30 60:32 61:84 62:522 63:748
64:1977 65:1092 66:1537 67:1052 68:399 69:1165
70:466 71:193 72:657 74:929 75:319 76:254
77:493 78:368 79:248 80:287 81:365 82:707
83:206 84:341 85:432 86:242 87:202 88:311
89:714 90:104 91:939 92:644 93:489 94:921
95:683 96:289 97:53 98:533 99:177 100:42
101:20 102:387 103:1237 104:1674 105:213 106:26
107:1558 108:551 109:404 110:39 111:1925 112:525
113:36 114:48 115:28 116:55 117:1044 118:66
119:82 120:1360 121:43 122:77 123:121 124:61
125:25 128:481 129:393 130:685 131:937 132:480
133:213 134:458 135:128 136:604 137:471 138:851
139:427 140:703 141:362 142:1030 143:712 144:430
145:121 146:690 147:509 148:899 149:789 150:205
151:707 152:492 153:142 154:964 155:851 156:884
157:378 158:541 159:742 160:877 161:639 162:1038
163:433 164:721 165:533 166:797 167:660 168:1136
169:165 170:1550 171:112 172:1352 173:811 174:361
175:83 176:776 177:840 178:495 179:692 180:40
181:1781 182:25 183:997 184:454 185:3558 186:2043
187:1527 188:847 189:1814 190:4132 191:446 192:5180
193:1893 194:1236 195:940 196:714 197:1213 198:2720
199:4949 200:3591 201:3306 202:948 203:728 204:2167
205:1760 206:1541 207:1556 208:1481 209:1966 210:328
211:437 212:1013 213:773 214:934 215:37 216:2558
217:435 218:538 219:19 220:34 221:395 222:24
223:899
End of report
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