[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun May 4 20:17:01 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sun 04 May, 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: 261682
Prefixes after maximum aggregation (per Origin AS): 114622
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135125
Number of IPv4 prefixes with a valid ROA: 117473
Number of IPv4 prefixes with an invalid ROA: 34
Number of IPv4 prefixes with no ROA: 144175
Total ASes present in the Internet Routing Table: 19670
Prefixes per ASN: 13.30
Origin-only ASes present in the Internet Routing Table: 17007
Origin ASes announcing only one prefix: 7723
Transit ASes present in the Internet Routing Table: 2663
Transit-only ASes present in the Internet Routing Table: 696
Paths with bogon ASNs present in the IPv4 Routing Table: 6
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 306
Number of instances of unregistered ASNs: 307
Number of 32-bit ASNs allocated by the RIRs: 46334
Number of 32-bit ASNs visible in the Routing Table: 7401
Prefixes from 32-bit ASNs in the Routing Table: 27833
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 140
Number of addresses announced to Internet: 1555945949
Equivalent to 92 /8s, 189 /16s and 217 /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: 82627
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32100
Total APNIC prefixes after maximum aggregation: 7530
APNIC Deaggregation factor: 4.26
Prefixes being announced from the APNIC address blocks: 30471
Unique aggregates announced from the APNIC address blocks: 7904
APNIC Region origin ASes present in the Internet Routing Table: 1201
APNIC Prefixes per ASN: 25.37
APNIC Region origin ASes announcing only one prefix: 470
APNIC Region transit ASes present in the Internet Routing Table: 204
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: 547
Number of APNIC addresses announced to Internet: 167488108
Equivalent to 9 /8s, 251 /16s and 170 /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: 125523
Total ARIN prefixes after maximum aggregation: 64782
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122367
Unique aggregates announced from the ARIN address blocks: 65662
ARIN Region origin ASes present in the Internet Routing Table: 9316
ARIN Prefixes per ASN: 13.14
ARIN Region origin ASes announcing only one prefix: 3881
ARIN Region transit ASes present in the Internet Routing Table: 858
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: 2169
Number of ARIN addresses announced to Internet: 968441825
Equivalent to 57 /8s, 185 /16s and 63 /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: 48738
Total RIPE prefixes after maximum aggregation: 26282
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 50501
Unique aggregates announced from the RIPE address blocks: 36695
RIPE Region origin ASes present in the Internet Routing Table: 4587
RIPE Prefixes per ASN: 11.01
RIPE Region origin ASes announcing only one prefix: 1935
RIPE Region transit ASes present in the Internet Routing Table: 693
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1873
Number of RIPE addresses announced to Internet: 281678160
Equivalent to 16 /8s, 202 /16s and 17 /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: 44775
Total LACNIC prefixes after maximum aggregation: 13513
LACNIC Deaggregation factor: 3.31
Prefixes being announced from the LACNIC address blocks: 43908
Unique aggregates announced from the LACNIC address blocks: 20212
LACNIC Region origin ASes present in the Internet Routing Table: 3486
LACNIC Prefixes per ASN: 12.60
LACNIC Region origin ASes announcing only one prefix: 1333
LACNIC Region transit ASes present in the Internet Routing Table: 705
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: 2670
Number of LACNIC addresses announced to Internet: 96692032
Equivalent to 5 /8s, 195 /16s and 103 /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: 10240
Total AfriNIC prefixes after maximum aggregation: 2311
AfriNIC Deaggregation factor: 4.43
Prefixes being announced from the AfriNIC address blocks: 14295
Unique aggregates announced from the AfriNIC address blocks: 4530
AfriNIC Region origin ASes present in the Internet Routing Table: 264
AfriNIC Prefixes per ASN: 54.15
AfriNIC Region origin ASes announcing only one prefix: 104
AfriNIC Region transit ASes present in the Internet Routing Table: 73
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 142
Number of AfriNIC addresses announced to Internet: 41586176
Equivalent to 2 /8s, 122 /16s and 142 /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 10268 8754 92 CHINAMOBILE-CN China Mobile Communication
56046 1622 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication
17561 979 62 426 LCS-AS-AP LARUS Limited, HK
24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 500 796 137 ALIBABA-CN-NET Alibaba US Technology Co.,
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 13290 40823 4403 AMAZON-02, US
22773 3365 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54863 2505 DNIC-AS-00749, US
4155 2688 205 1641 USDA-1, US
36352 2514 207 1117 AS-COLOCROSSING, US
367 2423 2902 1171 DNIC-ASBLK-00306-00371, US
7018 2103 22891 1551 ATT-INTERNET4, US
11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1856 3733 470 CELLCO-PART, US
209 1665 4890 275 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 92 966 AKAMAI-ASN1, NL
3257 996 2077 748 GTT-BACKBONE GTT, US
3215 889 4810 291 France Telecom - Orange, FR
25019 812 1301 129 SAUDINETSTC-AS, SA
34984 685 76 408 TELLCOM-AS, TR
8452 661 1842 17 TE-AS TE-AS, EG
203214 581 45 360 HULUMTELE, IQ
8376 574 53 22 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 7451 2024 1008 UNINET, MX
11830 1994 369 64 Instituto Costarricense de Electricidad y
10620 1930 286 1301 Telmex Colombia S.A., CO
3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1191 371 22 Telefonica del Peru S.A.A., PE
26615 1014 2503 52 TIM SA, BR
18881 882 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 644 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 550 2884 69 TELEFONICA BRASIL S.A, BR
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 1491 389 16 LINKdotNET-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
29571 971 100 75 ORANGE-COTE-IVOIRE, CI
24835 882 552 38 RAYA-AS, EG
36935 699 135 175 Vodafone-, EG
36992 603 1228 124 ETISALAT-MISR, EG
36914 547 82 3 KENET-AS, KE
37069 465 1046 15 MOBINIL, EG
36903 410 192 301 MT-MPLS, MA
2018 373 318 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 13290 40823 4403 AMAZON-02, US
9808 10268 8754 92 CHINAMOBILE-CN China Mobile Communication
8151 7451 2024 1008 UNINET, MX
22773 3365 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54863 2505 DNIC-AS-00749, US
4155 2688 205 1641 USDA-1, US
36352 2514 207 1117 AS-COLOCROSSING, US
367 2423 2902 1171 DNIC-ASBLK-00306-00371, US
7018 2103 22891 1551 ATT-INTERNET4, US
11830 1994 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 10268 10176 CHINAMOBILE-CN China Mobile Communications Grou
8151 7451 6443 UNINET, MX
22773 3365 3200 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1994 1930 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1895 1679 ATLANTICBB-JOHNSTOWN, US
56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1491 1475 LINKdotNET-AS, EG
56046 1622 1436 CMNET-JIANGSU-AP China Mobile communications co
56047 1486 1433 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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
23.166.120.0/24 Origin: 59993 UILLLC-20230328, US
23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, 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 /8:13 /9:10 /10:29 /11:41 /12:151
/13:214 /14:578 /15:1097 /16:7623 /17:3437 /18:4208
/19:7676 /20:12379 /21:15286 /22:27606 /23:27420 /24:153689
/25:61 /26:84 /27:36 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3955 7451 UNINET, MX
22773 2517 3365 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2335 13290 AMAZON-02, US
11830 1695 1994 Instituto Costarricense de Electricidad y Telecom., CR
10620 1089 1930 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1012 2514 AS-COLOCROSSING, US
209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US
19901 963 1241 BRSPD-PUBLIC, US
11776 883 1895 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:66 2:472 3:664 4:5 5:798 6:155
7:5 8:634 11:171 12:996 13:308 14:109
15:301 16:244 17:5 18:885 20:176 21:4
22:188 23:2550 24:644 27:21 29:19 31:466
32:9 33:1 34:10 35:133 36:1322 37:1041
38:1912 39:551 40:62 41:924 42:213 43:189
44:34 45:3638 46:952 47:85 49:19 50:346
51:383 52:1383 54:298 55:1085 56:11 57:15
58:18 59:31 60:16 61:72 62:546 63:765
64:1925 65:1086 66:1538 67:954 68:415 69:1117
70:442 71:202 72:771 74:959 75:426 76:249
77:471 78:329 79:271 80:294 81:351 82:749
83:245 84:344 85:460 86:233 87:241 88:277
89:841 90:103 91:940 92:598 93:463 94:942
95:689 96:289 97:66 98:467 99:164 100:35
101:24 102:376 103:1231 104:1438 105:133 106:16
107:1494 108:551 109:389 110:33 111:1914 112:448
113:39 114:42 115:13 116:62 117:1035 118:72
119:131 120:1174 121:46 122:68 123:73 124:56
125:25 128:469 129:306 130:693 131:890 132:561
133:212 134:488 135:111 136:573 137:494 138:875
139:443 140:706 141:448 142:1025 143:646 144:425
145:135 146:674 147:493 148:866 149:759 150:386
151:627 152:495 153:129 154:1866 155:810 156:1517
157:375 158:535 159:684 160:828 161:698 162:946
163:352 164:709 165:768 166:775 167:633 168:1112
169:143 170:1596 171:123 172:1360 173:832 174:249
175:55 176:762 177:840 178:506 179:667 180:45
181:1734 182:29 183:866 184:473 185:3367 186:2019
187:1366 188:782 189:1727 190:4208 191:421 192:5155
193:1817 194:1215 195:920 196:686 197:1547 198:2729
199:4881 200:3593 201:3305 202:1002 203:736 204:2155
205:1940 206:1543 207:1493 208:1419 209:1932 210:308
211:430 212:930 213:838 214:982 215:42 216:2531
217:416 218:516 219:19 220:26 221:304 222:32
223:761
End of report
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