[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon Jul 14 20:16:43 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Mon 14 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: 280635
Prefixes after maximum aggregation (per Origin AS): 122594
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 146067
Number of IPv4 prefixes with a valid ROA: 132599
Number of IPv4 prefixes with an invalid ROA: 51
Number of IPv4 prefixes with no ROA: 147985
Total ASes present in the Internet Routing Table: 21352
Prefixes per ASN: 13.14
Origin-only ASes present in the Internet Routing Table: 18387
Origin ASes announcing only one prefix: 8254
Transit ASes present in the Internet Routing Table: 2965
Transit-only ASes present in the Internet Routing Table: 734
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: 46830
Number of 32-bit ASNs visible in the Routing Table: 8612
Prefixes from 32-bit ASNs in the Routing Table: 34144
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: 104
Number of addresses announced to Internet: 1655847173
Equivalent to 98 /8s, 178 /16s and 57 /24s
Percentage of available address space announced: 44.7
Percentage of allocated address space announced: 44.7
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: 88769
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36183
Total APNIC prefixes after maximum aggregation: 8454
APNIC Deaggregation factor: 4.28
Prefixes being announced from the APNIC address blocks: 34826
Unique aggregates announced from the APNIC address blocks: 9135
APNIC Region origin ASes present in the Internet Routing Table: 1445
APNIC Prefixes per ASN: 24.10
APNIC Region origin ASes announcing only one prefix: 589
APNIC Region transit ASes present in the Internet Routing Table: 235
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: 708
Number of APNIC addresses announced to Internet: 179863916
Equivalent to 10 /8s, 184 /16s and 129 /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: 127456
Total ARIN prefixes after maximum aggregation: 66937
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 125996
Unique aggregates announced from the ARIN address blocks: 68401
ARIN Region origin ASes present in the Internet Routing Table: 9392
ARIN Prefixes per ASN: 13.42
ARIN Region origin ASes announcing only one prefix: 3885
ARIN Region transit ASes present in the Internet Routing Table: 882
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: 2205
Number of ARIN addresses announced to Internet: 1029000713
Equivalent to 61 /8s, 85 /16s and 78 /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: 50301
Total RIPE prefixes after maximum aggregation: 27788
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 51778
Unique aggregates announced from the RIPE address blocks: 38586
RIPE Region origin ASes present in the Internet Routing Table: 4739
RIPE Prefixes per ASN: 10.93
RIPE Region origin ASes announcing only one prefix: 2008
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: 1943
Number of RIPE addresses announced to Internet: 288448592
Equivalent to 17 /8s, 49 /16s and 96 /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: 56937
Total LACNIC prefixes after maximum aggregation: 16886
LACNIC Deaggregation factor: 3.37
Prefixes being announced from the LACNIC address blocks: 55272
Unique aggregates announced from the LACNIC address blocks: 25230
LACNIC Region origin ASes present in the Internet Routing Table: 4625
LACNIC Prefixes per ASN: 11.95
LACNIC Region origin ASes announcing only one prefix: 1667
LACNIC Region transit ASes present in the Internet Routing Table: 931
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: 3605
Number of LACNIC addresses announced to Internet: 109159744
Equivalent to 6 /8s, 129 /16s and 165 /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: 9406
Total AfriNIC prefixes after maximum aggregation: 2269
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 12659
Unique aggregates announced from the AfriNIC address blocks: 4613
AfriNIC Region origin ASes present in the Internet Routing Table: 285
AfriNIC Prefixes per ASN: 44.42
AfriNIC Region origin ASes announcing only one prefix: 105
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: 151
Number of AfriNIC addresses announced to Internet: 49260032
Equivalent to 2 /8s, 239 /16s and 166 /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 11592 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 541 888 141 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic
17561 485 31 197 LCS-AS-AP LARUS Limited, HK
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 13683 40961 5267 AMAZON-02, US
22773 3338 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3225 54767 2476 DNIC-AS-00749, US
4155 2862 217 1728 USDA-1, US
36352 2560 210 1145 AS-COLOCROSSING, US
367 2484 3084 1167 DNIC-ASBLK-00306-00371, US
6167 1927 4012 517 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1731 22854 1283 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 1197 93 974 AKAMAI-ASN1, NL
3257 1045 2082 808 GTT-BACKBONE GTT, US
34984 926 116 597 TELLCOM-AS, TR
3215 887 4818 291 France Telecom - Orange, FR
25019 806 1301 130 SAUDINETSTC-AS, SA
8452 721 1841 16 TE-AS TE-AS, EG
212238 685 48 603 CDNEXT, GB
58224 658 427 474 TCI, IR
8376 567 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 7601 2058 902 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1751 254 1251 Telmex Colombia S.A., CO
3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1197 371 22 Telefonica del Peru S.A.A., PE
26615 1015 2487 55 TIM SA, BR
18881 885 1127 31 TELEFONICA BRASIL S.A, BR
22884 668 42 409 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
27651 649 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 1067 100 72 ORANGE-COTE-IVOIRE, CI
24835 909 502 32 RAYA-AS, EG
37069 702 1112 11 MOBINIL, EG
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36914 568 82 3 KENET-AS, KE
24863 566 347 49 LINKdotNET-AS, EG
36992 473 1043 191 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 13683 40961 5267 AMAZON-02, US
9808 11592 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 7601 2058 902 UNINET, MX
22773 3338 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3225 54767 2476 DNIC-AS-00749, US
4155 2862 217 1728 USDA-1, US
56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati
36352 2560 210 1145 AS-COLOCROSSING, US
367 2484 3084 1167 DNIC-ASBLK-00306-00371, US
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 11592 11477 CHINAMOBILE-CN China Mobile Communications Grou
8151 7601 6699 UNINET, MX
22773 3338 3173 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2590 2402 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 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1501 1451 CMNET-HUNAN-AP China Mobile communications corp
36352 2560 1415 AS-COLOCROSSING, 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 /12:163
/13:223 /14:598 /15:1116 /16:7767 /17:3545 /18:4313
/19:7788 /20:13015 /21:16010 /22:27582 /23:29610 /24:168566
/25:64 /26:81 /27:37 /28:17 /29:17 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 4034 7601 UNINET, MX
22773 2492 3338 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2346 13683 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
19901 1025 1345 BRSPD-PUBLIC, US
36352 1023 2560 AS-COLOCROSSING, US
10620 1017 1751 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)
----------------------------------------------
1:47 2:449 3:850 4:5 5:713 6:157
7:5 8:668 11:171 12:971 13:403 14:129
15:308 16:248 17:3 18:891 20:188 21:4
22:188 23:2689 24:702 27:50 29:19 31:533
32:18 33:1 34:10 35:175 36:2318 37:720
38:2559 39:553 40:84 41:981 42:39 43:293
44:42 45:4377 46:998 47:108 49:30 50:414
51:390 52:1383 54:318 55:1107 56:11 57:24
58:19 59:49 60:33 61:124 62:542 63:792
64:1937 65:1131 66:1616 67:1092 68:392 69:1260
70:455 71:192 72:705 74:954 75:319 76:243
77:490 78:378 79:238 80:288 81:369 82:712
83:225 84:360 85:483 86:239 87:216 88:305
89:713 90:106 91:949 92:664 93:490 94:1004
95:747 96:281 97:53 98:512 99:197 100:42
101:60 102:384 103:1589 104:1712 105:183 106:40
107:1532 108:557 109:435 110:53 111:1955 112:628
113:42 114:66 115:32 116:81 117:1087 118:76
119:94 120:1434 121:60 122:70 123:135 124:71
125:30 126:1 128:533 129:357 130:676 131:1018
132:568 133:285 134:484 135:127 136:680 137:553
138:1053 139:461 140:732 141:377 142:1031 143:886
144:464 145:117 146:694 147:541 148:1013 149:751
150:215 151:820 152:636 153:146 154:1430 155:984
156:1025 157:404 158:580 159:774 160:860 161:676
162:1113 163:477 164:729 165:585 166:817 167:715
168:1578 169:167 170:1792 171:108 172:1344 173:846
174:362 175:104 176:789 177:1107 178:487 179:879
180:47 181:2286 182:31 183:1053 184:460 185:3532
186:2859 187:1816 188:818 189:2031 190:6020 191:541
192:5394 193:1853 194:1287 195:975 196:708 197:1085
198:2778 199:5067 200:4632 201:3814 202:1174 203:917
204:2259 205:1869 206:1611 207:1621 208:1512 209:1998
210:426 211:465 212:1002 213:790 214:985 215:41
216:2606 217:467 218:552 219:18 220:39 221:449
222:24 223:1037
End of report
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