[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Apr 11 20:17:04 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Fri 11 Apr, 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: 263640
Prefixes after maximum aggregation (per Origin AS): 115396
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 137231
Number of IPv4 prefixes with a valid ROA: 118027
Number of IPv4 prefixes with an invalid ROA: 16
Number of IPv4 prefixes with no ROA: 145597
Total ASes present in the Internet Routing Table: 20311
Prefixes per ASN: 12.98
Origin-only ASes present in the Internet Routing Table: 17517
Origin ASes announcing only one prefix: 7848
Transit ASes present in the Internet Routing Table: 2794
Transit-only ASes present in the Internet Routing Table: 720
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: 40
Max AS path prepend of ASN (139526) 35
Prefixes from unregistered ASNs in the Routing Table: 322
Number of instances of unregistered ASNs: 323
Number of 32-bit ASNs allocated by the RIRs: 46168
Number of 32-bit ASNs visible in the Routing Table: 7892
Prefixes from 32-bit ASNs in the Routing Table: 29635
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: 121
Number of addresses announced to Internet: 1556498397
Equivalent to 92 /8s, 198 /16s and 71 /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: 83887
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31742
Total APNIC prefixes after maximum aggregation: 7443
APNIC Deaggregation factor: 4.26
Prefixes being announced from the APNIC address blocks: 30495
Unique aggregates announced from the APNIC address blocks: 7910
APNIC Region origin ASes present in the Internet Routing Table: 1181
APNIC Prefixes per ASN: 25.82
APNIC Region origin ASes announcing only one prefix: 471
APNIC Region transit ASes present in the Internet Routing Table: 200
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 40
Number of APNIC region 32-bit ASNs visible in the Routing Table: 544
Number of APNIC addresses announced to Internet: 168711532
Equivalent to 10 /8s, 14 /16s and 85 /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: 124862
Total ARIN prefixes after maximum aggregation: 64171
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122172
Unique aggregates announced from the ARIN address blocks: 65635
ARIN Region origin ASes present in the Internet Routing Table: 9365
ARIN Prefixes per ASN: 13.05
ARIN Region origin ASes announcing only one prefix: 3892
ARIN Region transit ASes present in the Internet Routing Table: 871
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: 965136353
Equivalent to 57 /8s, 134 /16s and 207 /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: 49459
Total RIPE prefixes after maximum aggregation: 26914
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 51137
Unique aggregates announced from the RIPE address blocks: 37593
RIPE Region origin ASes present in the Internet Routing Table: 4626
RIPE Prefixes per ASN: 11.05
RIPE Region origin ASes announcing only one prefix: 1936
RIPE Region transit ASes present in the Internet Routing Table: 691
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1887
Number of RIPE addresses announced to Internet: 280974160
Equivalent to 16 /8s, 191 /16s and 83 /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: 46993
Total LACNIC prefixes after maximum aggregation: 14425
LACNIC Deaggregation factor: 3.26
Prefixes being announced from the LACNIC address blocks: 45908
Unique aggregates announced from the LACNIC address blocks: 21692
LACNIC Region origin ASes present in the Internet Routing Table: 4008
LACNIC Prefixes per ASN: 11.45
LACNIC Region origin ASes announcing only one prefix: 1439
LACNIC Region transit ASes present in the Internet Routing Table: 817
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3141
Number of LACNIC addresses announced to Internet: 98077504
Equivalent to 5 /8s, 216 /16s and 139 /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: 10262
Total AfriNIC prefixes after maximum aggregation: 2220
AfriNIC Deaggregation factor: 4.62
Prefixes being announced from the AfriNIC address blocks: 13807
Unique aggregates announced from the AfriNIC address blocks: 4285
AfriNIC Region origin ASes present in the Internet Routing Table: 280
AfriNIC Prefixes per ASN: 49.31
AfriNIC Region origin ASes announcing only one prefix: 110
AfriNIC Region transit ASes present in the Internet Routing Table: 74
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: 151
Number of AfriNIC addresses announced to Internet: 43547392
Equivalent to 2 /8s, 152 /16s and 123 /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 10121 8753 88 CHINAMOBILE-CN China Mobile Communication
56046 1585 811 187 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1484 192 53 CMNET-HUNAN-AP China Mobile communication
24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 774 500 71 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
17561 492 32 205 LCS-AS-AP LARUS Limited, HK
45102 476 762 135 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 13159 39691 4081 AMAZON-02, US
22773 3394 3017 179 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2628 197 1595 USDA-1, US
367 2466 2890 1194 DNIC-ASBLK-00306-00371, US
36352 2388 198 1070 AS-COLOCROSSING, US
7018 2213 22907 1579 ATT-INTERNET4, US
11776 1892 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1830 3621 458 CELLCO-PART, US
209 1666 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 1148 90 948 AKAMAI-ASN1, NL
34984 927 91 517 TELLCOM-AS, TR
3257 926 2075 747 GTT-BACKBONE GTT, US
3215 894 4810 293 France Telecom - Orange, FR
25019 843 1299 129 SAUDINETSTC-AS, SA
8452 643 1842 17 TE-AS TE-AS, EG
8376 573 53 22 Jordan Data Communications, JO
51167 567 113 250 CONTABO, DE
212238 562 40 495 CDNEXT, GB
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 6793 1880 1018 UNINET, MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
10620 1943 288 1302 Telmex Colombia S.A., CO
3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1191 371 21 Telefonica del Peru S.A.A., PE
26615 987 2503 52 TIM SA, BR
18881 884 1127 31 TELEFONICA BRASIL S.A, BR
27651 656 95 43 ENTEL CHILE S.A., CL
28006 643 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 548 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 1484 389 16 LINKdotNET-AS, EG
29571 1037 100 74 ORANGE-COTE-IVOIRE, CI
20011 981 185 285 INTERNET-SOLUTIONS, ZA
24835 814 504 37 RAYA-AS, EG
36935 711 522 55 Vodafone-, EG
36992 602 1229 124 ETISALAT-MISR, EG
36914 548 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 13159 39691 4081 AMAZON-02, US
9808 10121 8753 88 CHINAMOBILE-CN China Mobile Communication
8151 6793 1880 1018 UNINET, MX
22773 3394 3017 179 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2628 197 1595 USDA-1, US
367 2466 2890 1194 DNIC-ASBLK-00306-00371, US
36352 2388 198 1070 AS-COLOCROSSING, US
7018 2213 22907 1579 ATT-INTERNET4, US
11830 1993 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 10121 10033 CHINAMOBILE-CN China Mobile Communications Grou
8151 6793 5775 UNINET, MX
22773 3394 3215 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1892 1676 ATLANTICBB-JOHNSTOWN, US
24863 1484 1468 LINKdotNET-AS, EG
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1484 1431 CMNET-HUNAN-AP China Mobile communications corp
56046 1585 1398 CMNET-JIANGSU-AP China Mobile communications co
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
53966 UNALLOCATED 8.39.98.0/24 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
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 /11:42 /12:151
/13:216 /14:577 /15:1101 /16:7578 /17:3445 /18:4201
/19:7611 /20:12326 /21:15425 /22:27897 /23:27542 /24:155261
/25:60 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3512 6793 UNINET, MX
22773 2534 3394 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2331 13159 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
10620 1098 1943 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 971 2388 AS-COLOCROSSING, US
209 965 1666 CENTURYLINK-US-LEGACY-QWEST, US
19901 945 1199 BRSPD-PUBLIC, US
11776 881 1892 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:67 2:449 3:610 4:5 5:832 6:150
7:5 8:640 11:171 12:996 13:296 14:137
15:301 16:241 17:5 18:891 20:168 21:4
22:188 23:2509 24:700 27:26 29:19 31:475
32:18 34:12 35:133 36:1229 37:1040 38:2056
39:541 40:56 41:915 42:221 43:197 44:33
45:4013 46:951 47:83 49:18 50:359 51:383
52:1385 54:274 55:873 56:11 57:17 58:46
59:32 60:16 61:73 62:557 63:773 64:1884
65:1085 66:1587 67:991 68:418 69:1168 70:427
71:210 72:762 74:975 75:428 76:246 77:480
78:335 79:275 80:299 81:352 82:762 83:239
84:368 85:483 86:234 87:250 88:276 89:826
90:104 91:1000 92:678 93:451 94:950 95:673
96:289 97:64 98:465 99:159 100:35 101:23
102:380 103:1190 104:1430 105:142 106:35 107:1509
108:532 109:412 110:64 111:1905 112:451 113:44
114:58 115:15 116:57 117:1034 118:163 119:131
120:1163 121:43 122:127 123:152 124:57 125:25
128:475 129:284 130:669 131:937 132:571 133:213
134:488 135:117 136:578 137:500 138:918 139:436
140:714 141:435 142:970 143:668 144:423 145:111
146:688 147:505 148:863 149:763 150:373 151:636
152:510 153:128 154:1555 155:813 156:1234 157:370
158:516 159:688 160:848 161:707 162:985 163:356
164:712 165:820 166:762 167:638 168:1187 169:149
170:1637 171:121 172:1377 173:818 174:253 175:43
176:850 177:1038 178:504 179:740 180:46 181:1789
182:21 183:861 184:493 185:3397 186:2171 187:1410
188:779 189:1679 190:4409 191:449 192:5169 193:1842
194:1227 195:946 196:798 197:1540 198:2708 199:4909
200:3681 201:3274 202:983 203:726 204:2172 205:1950
206:1558 207:1496 208:1364 209:1972 210:294 211:430
212:977 213:886 214:987 215:42 216:2496 217:432
218:522 219:19 220:26 221:303 222:32 223:732
End of report
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