[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Wed Jul 2 20:16:38 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Wed 02 Jul, 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: 277512
Prefixes after maximum aggregation (per Origin AS): 120281
Deaggregation factor: 2.31
Unique aggregates announced (without unneeded subnets): 143360
Number of IPv4 prefixes with a valid ROA: 129411
Number of IPv4 prefixes with an invalid ROA: 42
Number of IPv4 prefixes with no ROA: 148059
Total ASes present in the Internet Routing Table: 20882
Prefixes per ASN: 13.29
Origin-only ASes present in the Internet Routing Table: 17975
Origin ASes announcing only one prefix: 8076
Transit ASes present in the Internet Routing Table: 2907
Transit-only ASes present in the Internet Routing Table: 731
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: 46726
Number of 32-bit ASNs visible in the Routing Table: 8333
Prefixes from 32-bit ASNs in the Routing Table: 33149
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: 116
Number of addresses announced to Internet: 1568926661
Equivalent to 93 /8s, 131 /16s and 235 /24s
Percentage of available address space announced: 42.4
Percentage of allocated address space announced: 42.4
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: 89078
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33550
Total APNIC prefixes after maximum aggregation: 7449
APNIC Deaggregation factor: 4.50
Prefixes being announced from the APNIC address blocks: 32204
Unique aggregates announced from the APNIC address blocks: 7655
APNIC Region origin ASes present in the Internet Routing Table: 1242
APNIC Prefixes per ASN: 25.93
APNIC Region origin ASes announcing only one prefix: 488
APNIC Region transit ASes present in the Internet Routing Table: 203
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: 595
Number of APNIC addresses announced to Internet: 165163372
Equivalent to 9 /8s, 216 /16s and 49 /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: 126900
Total ARIN prefixes after maximum aggregation: 66668
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 125089
Unique aggregates announced from the ARIN address blocks: 68044
ARIN Region origin ASes present in the Internet Routing Table: 9348
ARIN Prefixes per ASN: 13.38
ARIN Region origin ASes announcing only one prefix: 3886
ARIN Region transit ASes present in the Internet Routing Table: 890
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: 2202
Number of ARIN addresses announced to Internet: 961611273
Equivalent to 57 /8s, 81 /16s and 6 /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: 50318
Total RIPE prefixes after maximum aggregation: 27246
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 51983
Unique aggregates announced from the RIPE address blocks: 38015
RIPE Region origin ASes present in the Internet Routing Table: 4651
RIPE Prefixes per ASN: 11.18
RIPE Region origin ASes announcing only one prefix: 1968
RIPE Region transit ASes present in the Internet Routing Table: 698
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: 1916
Number of RIPE addresses announced to Internet: 286926672
Equivalent to 17 /8s, 26 /16s and 39 /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: 55833
Total LACNIC prefixes after maximum aggregation: 16344
LACNIC Deaggregation factor: 3.42
Prefixes being announced from the LACNIC address blocks: 54142
Unique aggregates announced from the LACNIC address blocks: 24432
LACNIC Region origin ASes present in the Internet Routing Table: 4491
LACNIC Prefixes per ASN: 12.06
LACNIC Region origin ASes announcing only one prefix: 1623
LACNIC Region transit ASes present in the Internet Routing Table: 892
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3466
Number of LACNIC addresses announced to Internet: 108875520
Equivalent to 6 /8s, 125 /16s and 79 /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: 10539
Total AfriNIC prefixes after maximum aggregation: 2314
AfriNIC Deaggregation factor: 4.55
Prefixes being announced from the AfriNIC address blocks: 13978
Unique aggregates announced from the AfriNIC address blocks: 5099
AfriNIC Region origin ASes present in the Internet Routing Table: 291
AfriNIC Prefixes per ASN: 48.03
AfriNIC Region origin ASes announcing only one prefix: 111
AfriNIC Region transit ASes present in the Internet Routing Table: 76
Average AfriNIC Region AS path length visible: 6.4
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 154
Number of AfriNIC addresses announced to Internet: 46234112
Equivalent to 2 /8s, 193 /16s and 122 /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 11227 8759 113 CHINAMOBILE-CN China Mobile Communication
56046 2361 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1669 718 90 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1481 192 50 CMNET-HUNAN-AP China Mobile communication
24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
17561 667 42 218 LCS-AS-AP LARUS Limited, HK
2907 611 2169 463 SINET-AS Research Organization of Informa
45102 532 883 137 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 524 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
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 13573 40947 5216 AMAZON-02, US
22773 3334 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3226 54767 2477 DNIC-AS-00749, US
4155 2845 216 1733 USDA-1, US
36352 2563 210 1137 AS-COLOCROSSING, US
367 2457 3164 1162 DNIC-ASBLK-00306-00371, US
6167 1909 3939 521 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1814 22860 1356 ATT-INTERNET4, US
209 1657 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 1195 92 972 AKAMAI-ASN1, NL
3257 1042 2082 805 GTT-BACKBONE GTT, US
3215 887 4818 291 France Telecom - Orange, FR
25019 815 1301 129 SAUDINETSTC-AS, SA
8452 813 1841 16 TE-AS TE-AS, EG
34984 680 74 416 TELLCOM-AS, TR
212238 663 47 587 CDNEXT, GB
8376 574 52 23 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 7144 1923 909 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1710 248 1230 Telmex Colombia S.A., CO
3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1195 371 22 Telefonica del Peru S.A.A., PE
26615 1054 2487 55 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
11172 723 124 70 Alestra, S. de R.L. de C.V., MX
28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 647 91 44 ENTEL CHILE S.A., CL
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 1450 389 16 LINKdotNET-AS, EG
29571 1064 100 72 ORANGE-COTE-IVOIRE, CI
24835 980 413 108 RAYA-AS, EG
36914 573 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36992 553 1192 126 ETISALAT-MISR, EG
36935 475 517 39 Vodafone-, EG
37069 465 1062 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 13573 40947 5216 AMAZON-02, US
9808 11227 8759 113 CHINAMOBILE-CN China Mobile Communication
8151 7144 1923 909 UNINET, MX
22773 3334 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3226 54767 2477 DNIC-AS-00749, US
4155 2845 216 1733 USDA-1, US
36352 2563 210 1137 AS-COLOCROSSING, US
367 2457 3164 1162 DNIC-ASBLK-00306-00371, US
56046 2361 811 188 CMNET-JIANGSU-AP China Mobile communicati
11830 1987 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 11227 11114 CHINAMOBILE-CN China Mobile Communications Grou
8151 7144 6235 UNINET, MX
22773 3334 3171 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2361 2173 CMNET-JIANGSU-AP China Mobile communications co
11830 1987 1923 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1902 1687 ATLANTICBB-JOHNSTOWN, US
56041 1669 1579 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1450 1434 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
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
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
21861 UNALLOCATED 12.37.59.0/24 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
41.67.248.0/22 Origin: 15964 CAMNET-AS, CM
41.67.248.0/22 Transit: 37662 WIOCC-AS, MU
41.67.252.0/23 Origin: 15964 CAMNET-AS, CM
41.67.252.0/23 Transit: 37662 WIOCC-AS, MU
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 /10:30 /11:42 /12:149
/13:210 /14:579 /15:1101 /16:7617 /17:3497 /18:4273
/19:7767 /20:12790 /21:15913 /22:28654 /23:29357 /24:165286
/25:63 /26:80 /27:35 /28:13 /29:17 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3874 7144 UNINET, MX
22773 2490 3334 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2344 13573 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1026 2563 AS-COLOCROSSING, US
19901 1011 1315 BRSPD-PUBLIC, US
10620 992 1710 Telmex Colombia S.A., CO
209 963 1657 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1902 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:21 2:451 3:818 4:5 5:797 6:149
7:5 8:656 11:171 12:976 13:391 14:113
15:307 16:247 17:4 18:885 20:188 21:4
22:188 23:2652 24:686 27:26 29:19 31:522
32:18 33:1 34:10 35:175 36:2027 37:779
38:2551 39:551 40:70 41:1003 42:21 43:229
44:30 45:4363 46:1024 47:98 49:21 50:359
51:387 52:1383 54:314 55:1098 56:11 57:71
58:16 59:37 60:31 61:79 62:547 63:789
64:1914 65:1149 66:1607 67:1097 68:375 69:1262
70:448 71:192 72:719 74:956 75:320 76:260
77:520 78:369 79:253 80:299 81:370 82:712
83:213 84:338 85:484 86:243 87:212 88:294
89:722 90:106 91:947 92:654 93:492 94:949
95:674 96:289 97:59 98:502 99:188 100:42
101:16 102:371 103:1283 104:1691 105:205 106:41
107:1547 108:557 109:442 110:40 111:1925 112:573
113:36 114:52 115:27 116:58 117:1053 118:60
119:84 120:1400 121:49 122:77 123:128 124:68
125:25 128:512 129:400 130:666 131:1040 132:570
133:213 134:464 135:127 136:632 137:507 138:997
139:439 140:720 141:364 142:1041 143:790 144:426
145:126 146:691 147:523 148:991 149:760 150:208
151:789 152:615 153:144 154:1402 155:859 156:1189
157:411 158:550 159:746 160:825 161:662 162:1068
163:432 164:725 165:572 166:818 167:701 168:1562
169:159 170:1774 171:114 172:1351 173:815 174:362
175:86 176:784 177:1127 178:606 179:860 180:41
181:2274 182:28 183:1032 184:462 185:3531 186:2710
187:1603 188:832 189:1949 190:5811 191:518 192:5280
193:1901 194:1254 195:938 196:732 197:1281 198:2744
199:5012 200:4645 201:3780 202:970 203:744 204:2214
205:1847 206:1586 207:1631 208:1594 209:2031 210:335
211:447 212:999 213:781 214:921 215:35 216:2597
217:447 218:548 219:19 220:34 221:414 222:24
223:983
End of report
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