[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Jun 24 20:16:38 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Tue 24 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: 263213
Prefixes after maximum aggregation (per Origin AS): 115624
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135950
Number of IPv4 prefixes with a valid ROA: 119152
Number of IPv4 prefixes with an invalid ROA: 42
Number of IPv4 prefixes with no ROA: 144019
Total ASes present in the Internet Routing Table: 19645
Prefixes per ASN: 13.40
Origin-only ASes present in the Internet Routing Table: 16969
Origin ASes announcing only one prefix: 7689
Transit ASes present in the Internet Routing Table: 2676
Transit-only ASes present in the Internet Routing Table: 694
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 (265171) 25
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: 46698
Number of 32-bit ASNs visible in the Routing Table: 7404
Prefixes from 32-bit ASNs in the Routing Table: 28705
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: 1557655301
Equivalent to 92 /8s, 215 /16s and 239 /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: 83441
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32809
Total APNIC prefixes after maximum aggregation: 7289
APNIC Deaggregation factor: 4.50
Prefixes being announced from the APNIC address blocks: 31852
Unique aggregates announced from the APNIC address blocks: 7622
APNIC Region origin ASes present in the Internet Routing Table: 1196
APNIC Prefixes per ASN: 26.63
APNIC Region origin ASes announcing only one prefix: 471
APNIC Region transit ASes present in the Internet Routing Table: 192
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 559
Number of APNIC addresses announced to Internet: 167614316
Equivalent to 9 /8s, 253 /16s and 151 /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: 125295
Total ARIN prefixes after maximum aggregation: 65967
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 123039
Unique aggregates announced from the ARIN address blocks: 66569
ARIN Region origin ASes present in the Internet Routing Table: 9307
ARIN Prefixes per ASN: 13.22
ARIN Region origin ASes announcing only one prefix: 3866
ARIN Region transit ASes present in the Internet Routing Table: 875
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: 2195
Number of ARIN addresses announced to Internet: 960756233
Equivalent to 57 /8s, 67 /16s and 250 /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: 49555
Total RIPE prefixes after maximum aggregation: 26742
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 51378
Unique aggregates announced from the RIPE address blocks: 37477
RIPE Region origin ASes present in the Internet Routing Table: 4632
RIPE Prefixes per ASN: 11.09
RIPE Region origin ASes announcing only one prefix: 1945
RIPE Region transit ASes present in the Internet Routing Table: 694
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: 1914
Number of RIPE addresses announced to Internet: 285907280
Equivalent to 17 /8s, 10 /16s and 153 /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: 44481
Total LACNIC prefixes after maximum aggregation: 13093
LACNIC Deaggregation factor: 3.40
Prefixes being announced from the LACNIC address blocks: 43620
Unique aggregates announced from the LACNIC address blocks: 19656
LACNIC Region origin ASes present in the Internet Routing Table: 3390
LACNIC Prefixes per ASN: 12.87
LACNIC Region origin ASes announcing only one prefix: 1295
LACNIC Region transit ASes present in the Internet Routing Table: 694
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: 2577
Number of LACNIC addresses announced to Internet: 97006656
Equivalent to 5 /8s, 200 /16s and 52 /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: 10700
Total AfriNIC prefixes after maximum aggregation: 2269
AfriNIC Deaggregation factor: 4.72
Prefixes being announced from the AfriNIC address blocks: 13216
Unique aggregates announced from the AfriNIC address blocks: 4519
AfriNIC Region origin ASes present in the Internet Routing Table: 295
AfriNIC Prefixes per ASN: 44.80
AfriNIC Region origin ASes announcing only one prefix: 112
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: 159
Number of AfriNIC addresses announced to Internet: 46324480
Equivalent to 2 /8s, 194 /16s and 219 /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 11183 8761 110 CHINAMOBILE-CN China Mobile Communication
56046 2133 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 869 177 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 13540 40949 5199 AMAZON-02, US
22773 3345 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3227 54767 2478 DNIC-AS-00749, US
4155 2819 214 1716 USDA-1, US
36352 2572 210 1134 AS-COLOCROSSING, US
367 2431 3163 1160 DNIC-ASBLK-00306-00371, US
6167 1914 3955 513 CELLCO-PART, US
7018 1906 22866 1424 ATT-INTERNET4, US
11776 1901 259 214 ATLANTICBB-JOHNSTOWN, 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 92 970 AKAMAI-ASN1, NL
3257 1022 2081 791 GTT-BACKBONE GTT, US
3215 887 4818 291 France Telecom - Orange, FR
25019 818 1301 129 SAUDINETSTC-AS, SA
8452 788 1841 16 TE-AS TE-AS, EG
34984 679 74 415 TELLCOM-AS, TR
212238 652 47 577 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 7367 1991 928 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1673 243 1211 Telmex Colombia S.A., CO
3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1199 371 22 Telefonica del Peru S.A.A., PE
26615 1050 2487 55 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 532 346 132 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 617 520 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 422 193 305 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 13540 40949 5199 AMAZON-02, US
9808 11183 8761 110 CHINAMOBILE-CN China Mobile Communication
8151 7367 1991 928 UNINET, MX
22773 3345 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3227 54767 2478 DNIC-AS-00749, US
4155 2819 214 1716 USDA-1, US
36352 2572 210 1134 AS-COLOCROSSING, US
367 2431 3163 1160 DNIC-ASBLK-00306-00371, US
56046 2133 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 11183 11073 CHINAMOBILE-CN China Mobile Communications Grou
8151 7367 6439 UNINET, MX
22773 3345 3182 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2133 1945 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
36352 2572 1438 AS-COLOCROSSING, US
24863 1451 1435 LINKdotNET-AS, EG
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 /12:149
/13:208 /14:573 /15:1091 /16:7611 /17:3433 /18:4195
/19:7584 /20:12541 /21:15364 /22:27245 /23:27887 /24:155013
/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 3988 7367 UNINET, MX
22773 2500 3345 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2327 13540 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1033 2572 AS-COLOCROSSING, US
19901 1009 1313 BRSPD-PUBLIC, US
10620 968 1673 Telmex Colombia S.A., CO
209 962 1657 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)
----------------------------------------------
1:18 2:455 3:814 4:5 5:806 6:149
7:5 8:654 11:171 12:970 13:386 14:115
15:306 16:247 17:4 18:887 20:188 21:4
22:188 23:2627 24:715 27:21 29:19 31:520
32:9 33:1 34:10 35:180 36:1952 37:870
38:1980 39:550 40:67 41:999 42:21 43:219
44:34 45:3521 46:972 47:96 49:21 50:355
51:387 52:1384 54:317 55:1101 56:11 57:22
58:16 59:34 60:32 61:84 62:521 63:748
64:1982 65:1092 66:1532 67:1050 68:398 69:1176
70:466 71:193 72:658 74:929 75:319 76:238
77:494 78:369 79:250 80:286 81:365 82:706
83:208 84:339 85:435 86:244 87:200 88:311
89:713 90:104 91:946 92:646 93:489 94:923
95:683 96:288 97:53 98:531 99:174 100:42
101:20 102:343 103:1235 104:1678 105:214 106:26
107:1559 108:548 109:405 110:39 111:1927 112:526
113:36 114:48 115:28 116:56 117:1050 118:66
119:82 120:1371 121:48 122:77 123:125 124:60
125:25 128:480 129:403 130:677 131:957 132:547
133:213 134:459 135:127 136:606 137:519 138:834
139:426 140:715 141:362 142:1031 143:714 144:429
145:122 146:684 147:510 148:937 149:789 150:205
151:706 152:491 153:141 154:948 155:863 156:891
157:378 158:559 159:742 160:883 161:639 162:1040
163:431 164:722 165:535 166:797 167:671 168:1138
169:159 170:1546 171:112 172:1349 173:813 174:361
175:91 176:775 177:821 178:494 179:689 180:40
181:1785 182:25 183:1023 184:454 185:3577 186:2041
187:1527 188:857 189:1852 190:4145 191:439 192:5189
193:1891 194:1229 195:937 196:717 197:1191 198:2740
199:4963 200:3668 201:3426 202:946 203:727 204:2158
205:1753 206:1538 207:1555 208:1483 209:1975 210:328
211:440 212:1009 213:778 214:918 215:36 216:2559
217:436 218:538 219:19 220:38 221:397 222:24
223:899
End of report
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