[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 7 20:16:40 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Mon 07 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: 276981
Prefixes after maximum aggregation (per Origin AS): 120691
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 143776
Number of IPv4 prefixes with a valid ROA: 130203
Number of IPv4 prefixes with an invalid ROA: 43
Number of IPv4 prefixes with no ROA: 146735
Total ASes present in the Internet Routing Table: 20913
Prefixes per ASN: 13.24
Origin-only ASes present in the Internet Routing Table: 18009
Origin ASes announcing only one prefix: 8063
Transit ASes present in the Internet Routing Table: 2904
Transit-only ASes present in the Internet Routing Table: 725
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: 344
Number of instances of unregistered ASNs: 376
Number of 32-bit ASNs allocated by the RIRs: 46782
Number of 32-bit ASNs visible in the Routing Table: 8352
Prefixes from 32-bit ASNs in the Routing Table: 33354
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: 77
Number of addresses announced to Internet: 1640261637
Equivalent to 97 /8s, 196 /16s and 104 /24s
Percentage of available address space announced: 44.3
Percentage of allocated address space announced: 44.3
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: 89448
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33704
Total APNIC prefixes after maximum aggregation: 7470
APNIC Deaggregation factor: 4.51
Prefixes being announced from the APNIC address blocks: 32490
Unique aggregates announced from the APNIC address blocks: 7806
APNIC Region origin ASes present in the Internet Routing Table: 1245
APNIC Prefixes per ASN: 26.10
APNIC Region origin ASes announcing only one prefix: 496
APNIC Region transit ASes present in the Internet Routing Table: 201
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 595
Number of APNIC addresses announced to Internet: 173137260
Equivalent to 10 /8s, 81 /16s and 221 /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: 126713
Total ARIN prefixes after maximum aggregation: 66528
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 125059
Unique aggregates announced from the ARIN address blocks: 67869
ARIN Region origin ASes present in the Internet Routing Table: 9327
ARIN Prefixes per ASN: 13.41
ARIN Region origin ASes announcing only one prefix: 3870
ARIN Region transit ASes present in the Internet Routing Table: 885
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: 2191
Number of ARIN addresses announced to Internet: 1029216521
Equivalent to 61 /8s, 88 /16s and 153 /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: 50939
Total RIPE prefixes after maximum aggregation: 27495
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 52453
Unique aggregates announced from the RIPE address blocks: 38326
RIPE Region origin ASes present in the Internet Routing Table: 4661
RIPE Prefixes per ASN: 11.25
RIPE Region origin ASes announcing only one prefix: 1962
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: 1904
Number of RIPE addresses announced to Internet: 287429200
Equivalent to 17 /8s, 33 /16s and 210 /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: 56775
Total LACNIC prefixes after maximum aggregation: 16590
LACNIC Deaggregation factor: 3.42
Prefixes being announced from the LACNIC address blocks: 55050
Unique aggregates announced from the LACNIC address blocks: 24933
LACNIC Region origin ASes present in the Internet Routing Table: 4535
LACNIC Prefixes per ASN: 12.14
LACNIC Region origin ASes announcing only one prefix: 1623
LACNIC Region transit ASes present in the Internet Routing Table: 904
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: 3507
Number of LACNIC addresses announced to Internet: 109360960
Equivalent to 6 /8s, 132 /16s and 183 /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: 8506
Total AfriNIC prefixes after maximum aggregation: 2356
AfriNIC Deaggregation factor: 3.61
Prefixes being announced from the AfriNIC address blocks: 11852
Unique aggregates announced from the AfriNIC address blocks: 4766
AfriNIC Region origin ASes present in the Internet Routing Table: 293
AfriNIC Prefixes per ASN: 40.45
AfriNIC Region origin ASes announcing only one prefix: 112
AfriNIC Region transit ASes present in the Internet Routing Table: 74
Average AfriNIC Region AS path length visible: 6.6
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 155
Number of AfriNIC addresses announced to Internet: 41011968
Equivalent to 2 /8s, 113 /16s and 203 /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 11374 8759 113 CHINAMOBILE-CN China Mobile Communication
56046 2366 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1482 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
2907 611 2169 463 SINET-AS Research Organization of Informa
17561 535 34 157 LCS-AS-AP LARUS Limited, HK
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 13566 40947 5223 AMAZON-02, US
22773 3337 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3226 54767 2477 DNIC-AS-00749, US
4155 2842 216 1732 USDA-1, US
36352 2559 210 1138 AS-COLOCROSSING, US
367 2460 3163 1165 DNIC-ASBLK-00306-00371, US
6167 1920 3994 517 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1775 22857 1323 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 1186 92 963 AKAMAI-ASN1, NL
3257 1035 2082 803 GTT-BACKBONE GTT, US
34984 925 116 600 TELLCOM-AS, TR
3215 887 4818 291 France Telecom - Orange, FR
8452 822 1841 16 TE-AS TE-AS, EG
25019 815 1301 129 SAUDINETSTC-AS, SA
212238 662 47 586 CDNEXT, GB
8376 573 53 20 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 7467 2015 907 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1711 248 1231 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 1021 2487 55 TIM SA, BR
18881 884 1127 31 TELEFONICA BRASIL S.A, BR
11172 722 124 69 Alestra, S. de R.L. de C.V., MX
28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 646 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
29571 1064 100 72 ORANGE-COTE-IVOIRE, CI
36914 576 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
24835 545 346 46 RAYA-AS, EG
24863 482 274 114 LINKdotNET-AS, EG
36903 482 218 340 MT-MPLS, MA
36935 419 521 40 Vodafone-, EG
2018 375 318 69 TENET-1, ZA
37069 368 817 15 MOBINIL, EG
37693 343 599 42 TUNISIANA, TN
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 13566 40947 5223 AMAZON-02, US
9808 11374 8759 113 CHINAMOBILE-CN China Mobile Communication
8151 7467 2015 907 UNINET, MX
22773 3337 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3226 54767 2477 DNIC-AS-00749, US
4155 2842 216 1732 USDA-1, US
36352 2559 210 1138 AS-COLOCROSSING, US
367 2460 3163 1165 DNIC-ASBLK-00306-00371, US
56046 2366 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 11374 11261 CHINAMOBILE-CN China Mobile Communications Grou
8151 7467 6560 UNINET, MX
22773 3337 3172 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2366 2178 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 1482 1432 CMNET-HUNAN-AP China Mobile communications corp
36352 2559 1421 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
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 /8:14 /9:11 /10:31 /11:51 /12:158
/13:214 /14:585 /15:1106 /16:7710 /17:3502 /18:4190
/19:7791 /20:12723 /21:15952 /22:27905 /23:29334 /24:165486
/25:56 /26:81 /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 4000 7467 UNINET, MX
22773 2491 3337 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2322 13566 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1025 2559 AS-COLOCROSSING, US
19901 1017 1322 BRSPD-PUBLIC, US
10620 993 1711 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)
----------------------------------------------
1:31 2:429 3:823 4:5 5:812 6:149
7:5 8:655 11:171 12:973 13:394 14:113
15:308 16:247 17:3 18:887 20:188 21:4
22:188 23:2651 24:680 27:26 29:19 31:527
32:18 33:1 34:10 35:180 36:2071 37:775
38:2586 39:552 40:78 41:853 42:21 43:232
44:29 45:4321 46:1000 47:98 49:21 50:363
51:384 52:1383 54:315 55:1098 56:11 57:24
58:16 59:38 60:37 61:79 62:537 63:786
64:1923 65:1143 66:1610 67:1099 68:372 69:1256
70:449 71:191 72:721 74:962 75:320 76:260
77:492 78:366 79:238 80:292 81:375 82:715
83:217 84:342 85:475 86:245 87:214 88:302
89:713 90:105 91:958 92:691 93:492 94:942
95:677 96:289 97:59 98:505 99:188 100:42
101:18 102:382 103:1308 104:1689 105:203 106:40
107:1548 108:545 109:449 110:40 111:1931 112:574
113:36 114:55 115:26 116:60 117:1081 118:60
119:82 120:1399 121:49 122:71 123:127 124:69
125:25 126:1 128:512 129:392 130:667 131:1048
132:564 133:212 134:474 135:127 136:631 137:531
138:1008 139:440 140:736 141:366 142:1022 143:788
144:426 145:123 146:685 147:517 148:992 149:765
150:182 151:805 152:615 153:145 154:1363 155:861
156:1160 157:399 158:552 159:746 160:831 161:660
162:1086 163:438 164:726 165:574 166:811 167:702
168:1580 169:162 170:1772 171:110 172:1350 173:816
174:363 175:85 176:816 177:1102 178:612 179:891
180:41 181:2264 182:28 183:1033 184:462 185:3447
186:2806 187:1692 188:837 189:1993 190:6070 191:523
192:5279 193:1885 194:1268 195:956 196:716 197:1080
198:2746 199:5013 200:4699 201:3809 202:969 203:743
204:2225 205:1826 206:1582 207:1633 208:1584 209:2031
210:351 211:448 212:1014 213:787 214:928 215:35
216:2584 217:443 218:541 219:19 220:27 221:415
222:24 223:976
End of report
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