[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Jul 15 20:16:44 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Tue 15 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: 277629
Prefixes after maximum aggregation (per Origin AS): 120983
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 143930
Number of IPv4 prefixes with a valid ROA: 130691
Number of IPv4 prefixes with an invalid ROA: 215
Number of IPv4 prefixes with no ROA: 146723
Total ASes present in the Internet Routing Table: 21070
Prefixes per ASN: 13.18
Origin-only ASes present in the Internet Routing Table: 18135
Origin ASes announcing only one prefix: 8123
Transit ASes present in the Internet Routing Table: 2935
Transit-only ASes present in the Internet Routing Table: 727
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: 352
Number of instances of unregistered ASNs: 384
Number of 32-bit ASNs allocated by the RIRs: 46832
Number of 32-bit ASNs visible in the Routing Table: 8513
Prefixes from 32-bit ASNs in the Routing Table: 33692
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: 103
Number of addresses announced to Internet: 1646517253
Equivalent to 98 /8s, 35 /16s and 220 /24s
Percentage of available address space announced: 44.5
Percentage of allocated address space announced: 44.5
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: 88579
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34656
Total APNIC prefixes after maximum aggregation: 7708
APNIC Deaggregation factor: 4.50
Prefixes being announced from the APNIC address blocks: 33469
Unique aggregates announced from the APNIC address blocks: 8057
APNIC Region origin ASes present in the Internet Routing Table: 1272
APNIC Prefixes per ASN: 26.31
APNIC Region origin ASes announcing only one prefix: 508
APNIC Region transit ASes present in the Internet Routing Table: 209
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: 613
Number of APNIC addresses announced to Internet: 173210220
Equivalent to 10 /8s, 82 /16s and 250 /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: 126189
Total ARIN prefixes after maximum aggregation: 66435
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 124860
Unique aggregates announced from the ARIN address blocks: 67948
ARIN Region origin ASes present in the Internet Routing Table: 9335
ARIN Prefixes per ASN: 13.38
ARIN Region origin ASes announcing only one prefix: 3869
ARIN Region transit ASes present in the Internet Routing Table: 883
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: 2199
Number of ARIN addresses announced to Internet: 1028007177
Equivalent to 61 /8s, 70 /16s and 37 /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: 49887
Total RIPE prefixes after maximum aggregation: 27475
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 51370
Unique aggregates announced from the RIPE address blocks: 38305
RIPE Region origin ASes present in the Internet Routing Table: 4652
RIPE Prefixes per ASN: 11.04
RIPE Region origin ASes announcing only one prefix: 1959
RIPE Region transit ASes present in the Internet Routing Table: 697
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: 1913
Number of RIPE addresses announced to Internet: 286624336
Equivalent to 17 /8s, 21 /16s and 138 /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: 57014
Total LACNIC prefixes after maximum aggregation: 16849
LACNIC Deaggregation factor: 3.38
Prefixes being announced from the LACNIC address blocks: 55314
Unique aggregates announced from the LACNIC address blocks: 25141
LACNIC Region origin ASes present in the Internet Routing Table: 4669
LACNIC Prefixes per ASN: 11.85
LACNIC Region origin ASes announcing only one prefix: 1683
LACNIC Region transit ASes present in the Internet Routing Table: 934
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: 3639
Number of LACNIC addresses announced to Internet: 109064256
Equivalent to 6 /8s, 128 /16s and 48 /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: 9531
Total AfriNIC prefixes after maximum aggregation: 2256
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 12513
Unique aggregates announced from the AfriNIC address blocks: 4378
AfriNIC Region origin ASes present in the Internet Routing Table: 283
AfriNIC Prefixes per ASN: 44.22
AfriNIC Region origin ASes announcing only one prefix: 104
AfriNIC Region transit ASes present in the Internet Routing Table: 69
Average AfriNIC Region AS path length visible: 6.6
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 149
Number of AfriNIC addresses announced to Internet: 49498368
Equivalent to 2 /8s, 243 /16s and 73 /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 11628 8761 115 CHINAMOBILE-CN China Mobile Communication
56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1501 192 50 CMNET-HUNAN-AP China Mobile communication
24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 611 2169 463 SINET-AS Research Organization of Informa
45102 536 884 140 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 523 496 66 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 13665 40960 5267 AMAZON-02, US
22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3225 54767 2476 DNIC-AS-00749, US
4155 2860 217 1726 USDA-1, US
36352 2555 210 1148 AS-COLOCROSSING, US
367 2504 3072 1179 DNIC-ASBLK-00306-00371, US
6167 1927 4012 517 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1717 22849 1269 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 1179 92 959 AKAMAI-ASN1, NL
3257 1046 2083 809 GTT-BACKBONE GTT, US
34984 926 116 597 TELLCOM-AS, TR
3215 887 4818 291 France Telecom - Orange, FR
25019 809 1301 130 SAUDINETSTC-AS, SA
8452 715 1841 16 TE-AS TE-AS, EG
58224 658 427 474 TCI, IR
212238 656 46 580 CDNEXT, GB
8376 570 52 23 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 7479 2012 898 UNINET, MX
11830 1984 369 64 Instituto Costarricense de Electricidad y
10620 1712 248 1232 Telmex Colombia S.A., CO
3816 1344 786 204 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1195 371 22 Telefonica del Peru S.A.A., PE
26615 1018 2487 55 TIM SA, BR
18881 885 1127 31 TELEFONICA BRASIL S.A, BR
11172 725 124 69 Alestra, S. de R.L. de C.V., MX
27651 650 92 46 ENTEL CHILE S.A., CL
28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE
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
29571 1154 101 66 ORANGE-COTE-IVOIRE, CI
24835 917 513 27 RAYA-AS, EG
37069 702 1112 11 MOBINIL, EG
36914 570 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
24863 549 389 22 LINKdotNET-AS, EG
36992 504 1064 220 ETISALAT-MISR, EG
36903 456 204 330 MT-MPLS, MA
2018 375 318 69 TENET-1, ZA
36935 357 515 9 Vodafone-, EG
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 13665 40960 5267 AMAZON-02, US
9808 11628 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 7479 2012 898 UNINET, MX
22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3225 54767 2476 DNIC-AS-00749, US
4155 2860 217 1726 USDA-1, US
56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati
36352 2555 210 1148 AS-COLOCROSSING, US
367 2504 3072 1179 DNIC-ASBLK-00306-00371, US
11830 1984 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 11628 11513 CHINAMOBILE-CN China Mobile Communications Grou
8151 7479 6581 UNINET, MX
22773 3338 3174 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2590 2402 CMNET-JIANGSU-AP China Mobile communications co
11830 1984 1920 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1902 1687 ATLANTICBB-JOHNSTOWN, US
56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1501 1451 CMNET-HUNAN-AP China Mobile communications corp
6167 1927 1410 CELLCO-PART, US
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
23.147.224.0/24 Origin: 27392 639-DATACENTERS, US
23.147.224.0/24 Transit: 3356 LEVEL3, US
23.147.225.0/24 Origin: 27392 639-DATACENTERS, US
23.147.225.0/24 Transit: 3356 LEVEL3, US
23.147.226.0/24 Origin: 27392 639-DATACENTERS, US
23.147.226.0/24 Transit: 3356 LEVEL3, US
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 /8:14 /9:11 /10:31 /11:51 /12:162
/13:219 /14:590 /15:1107 /16:7714 /17:3478 /18:4233
/19:7703 /20:12961 /21:15905 /22:27436 /23:29384 /24:166399
/25:64 /26:81 /27:37 /28:17 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 4022 7479 UNINET, MX
22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2340 13665 AMAZON-02, US
11830 1688 1984 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
19901 1026 1348 BRSPD-PUBLIC, US
36352 1022 2555 AS-COLOCROSSING, US
10620 994 1712 Telmex Colombia S.A., CO
209 962 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)
----------------------------------------------
1:36 2:443 3:848 4:5 5:713 6:150
7:5 8:649 11:171 12:969 13:398 14:134
15:308 16:247 17:3 18:887 20:188 21:4
22:188 23:2670 24:691 27:43 29:19 31:520
32:18 33:1 34:10 35:175 36:2317 37:718
38:2591 39:554 40:84 41:1028 42:21 43:232
44:28 45:4445 46:988 47:110 49:26 50:412
51:390 52:1383 54:318 55:1108 56:11 57:24
58:16 59:37 60:31 61:63 62:541 63:782
64:1932 65:1130 66:1608 67:1096 68:385 69:1256
70:460 71:191 72:711 74:971 75:320 76:241
77:488 78:374 79:238 80:287 81:357 82:722
83:225 84:361 85:478 86:242 87:216 88:303
89:719 90:108 91:936 92:661 93:485 94:997
95:745 96:276 97:53 98:508 99:197 100:42
101:64 102:382 103:1368 104:1712 105:183 106:40
107:1530 108:517 109:434 110:43 111:1955 112:623
113:35 114:63 115:27 116:59 117:1096 118:69
119:83 120:1422 121:49 122:70 123:131 124:65
125:25 126:1 128:536 129:350 130:673 131:983
132:559 133:212 134:474 135:127 136:677 137:534
138:1031 139:443 140:778 141:371 142:1026 143:817
144:439 145:117 146:686 147:519 148:986 149:746
150:180 151:815 152:627 153:134 154:1248 155:908
156:1008 157:396 158:564 159:754 160:856 161:659
162:1066 163:439 164:725 165:583 166:814 167:708
168:1577 169:159 170:1786 171:107 172:1330 173:841
174:360 175:92 176:786 177:1106 178:486 179:885
180:43 181:2259 182:47 183:1048 184:461 185:3508
186:2864 187:1717 188:815 189:2013 190:6024 191:562
192:5289 193:1841 194:1267 195:961 196:715 197:1081
198:2757 199:5035 200:4709 201:3818 202:1007 203:709
204:2228 205:1855 206:1609 207:1621 208:1573 209:2002
210:361 211:462 212:1000 213:792 214:936 215:35
216:2575 217:462 218:550 219:18 220:37 221:449
222:24 223:1061
End of report
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