* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Mon 17 Jun, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 449713
Prefixes after maximum aggregation: 183617
Deaggregation factor: 2.45
Unique aggregates announced to Internet: 226029
Total ASes present in the Internet Routing Table: 40415
Prefixes per ASN: 11.13
Origin-only ASes present in the Internet Routing Table: 34729
Origin ASes announcing only one prefix: 16172
Transit ASes present in the Internet Routing Table: 5678
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 62
Max AS path prepend of ASN ( 56484) 51
Prefixes from unregistered ASNs in the Routing Table: 418790
Unregistered ASNs in the Routing Table: 34926
Number of 32-bit ASNs allocated by the RIRs: 4793
Number of 32-bit ASNs visible in the Routing Table: 8
Prefixes from 32-bit ASNs in the Routing Table: 10715
Special use prefixes present in the Routing Table: 31
Prefixes being announced from unallocated address space: 235
Number of addresses announced to Internet: 2662710784
Equivalent to 158 /8s, 181 /16s and 190 /24s
Percentage of available address space announced: 71.9
Percentage of allocated address space announced: 71.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.6
Total number of prefixes smaller than registry allocations: 156153
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 104427
Total APNIC prefixes after maximum aggregation: 32122
APNIC Deaggregation factor: 3.25
Prefixes being announced from the APNIC address blocks: 106542
Unique aggregates announced from the APNIC address blocks: 45127
APNIC Region origin ASes present in the Internet Routing Table: 4803
APNIC Prefixes per ASN: 22.18
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 779
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1
Number of APNIC addresses announced to Internet: 724008192
Equivalent to 43 /8s, 39 /16s and 125 /24s
Percentage of available APNIC address space announced: 84.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 157518
Total ARIN prefixes after maximum aggregation: 79796
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 158164
Unique aggregates announced from the ARIN address blocks: 73912
ARIN Region origin ASes present in the Internet Routing Table: 15667
ARIN Prefixes per ASN: 10.10
ARIN Region origin ASes announcing only one prefix: 5980
ARIN Region transit ASes present in the Internet Routing Table: 1587
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2
Number of ARIN addresses announced to Internet: 1081492736
Equivalent to 64 /8s, 118 /16s and 69 /24s
Percentage of available ARIN address space announced: 57.2
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, 393216-394239
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,
53/8, 54/8, 55/8, 56/8, 57/8, 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: 117495
Total RIPE prefixes after maximum aggregation: 59917
RIPE Deaggregation factor: 1.96
Prefixes being announced from the RIPE address blocks: 121080
Unique aggregates announced from the RIPE address blocks: 78046
RIPE Region origin ASes present in the Internet Routing Table: 17196
RIPE Prefixes per ASN: 7.04
RIPE Region origin ASes announcing only one prefix: 8176
RIPE Region transit ASes present in the Internet Routing Table: 2770
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 62
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1
Number of RIPE addresses announced to Internet: 656441856
Equivalent to 39 /8s, 32 /16s and 130 /24s
Percentage of available RIPE address space announced: 95.4
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, 196608-199679
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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: 48011
Total LACNIC prefixes after maximum aggregation: 9233
LACNIC Deaggregation factor: 5.20
Prefixes being announced from the LACNIC address blocks: 52277
Unique aggregates announced from the LACNIC address blocks: 24808
LACNIC Region origin ASes present in the Internet Routing Table: 1943
LACNIC Prefixes per ASN: 26.91
LACNIC Region origin ASes announcing only one prefix: 585
LACNIC Region transit ASes present in the Internet Routing Table: 348
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3
Number of LACNIC addresses announced to Internet: 131820800
Equivalent to 7 /8s, 219 /16s and 109 /24s
Percentage of available LACNIC address space announced: 78.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus 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: 10820
Total AfriNIC prefixes after maximum aggregation: 2508
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 11414
Unique aggregates announced from the AfriNIC address blocks: 3916
AfriNIC Region origin ASes present in the Internet Routing Table: 638
AfriNIC Prefixes per ASN: 17.89
AfriNIC Region origin ASes announcing only one prefix: 192
AfriNIC Region transit ASes present in the Internet Routing Table: 126
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1
Number of AfriNIC addresses announced to Internet: 46366720
Equivalent to 2 /8s, 195 /16s and 128 /24s
Percentage of available AfriNIC address space announced: 46.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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
17974 2544 855 91 >>UNKNOWN<<
4766 2131 11553 623 >>UNKNOWN<<
7545 1994 320 108 TPG Telecom Limited
4755 1769 394 204 >>UNKNOWN<<
9829 1504 1205 40 >>UNKNOWN<<
9583 1208 91 506 >>UNKNOWN<<
7552 1142 1080 13 >>UNKNOWN<<
9498 1131 309 71 BHARTI Airtel Ltd.
24560 1077 394 164 >>UNKNOWN<<
4808 1058 2017 307 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3007 3691 75 BellSouth.net Inc.
18566 2062 381 182 Covad Communications Co.
1785 1991 677 124 >>UNKNOWN<<
22773 1984 2927 122 >>UNKNOWN<<
20115 1664 1618 614 >>UNKNOWN<<
4323 1626 1154 407 >>UNKNOWN<<
701 1532 11143 799 >>UNKNOWN<<
30036 1333 300 645 >>UNKNOWN<<
7018 1312 11076 846 >>UNKNOWN<<
11492 1218 216 359 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1629 544 16 >>UNKNOWN<<
34984 1269 241 217 >>UNKNOWN<<
2118 1069 97 13 >>UNKNOWN<<
20940 881 312 692 >>UNKNOWN<<
13188 824 98 82 >>UNKNOWN<<
8551 822 370 44 >>UNKNOWN<<
31148 802 40 25 >>UNKNOWN<<
6830 767 2376 441 >>UNKNOWN<<
12479 677 786 59 >>UNKNOWN<<
34744 676 173 59 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
28573 2823 1557 111 >>UNKNOWN<<
10620 2661 418 209 >>UNKNOWN<<
7303 1732 1155 221 >>UNKNOWN<<
8151 1260 2717 396 >>UNKNOWN<<
18881 995 844 20 >>UNKNOWN<<
6503 863 435 67 >>UNKNOWN<<
27947 816 89 108 >>UNKNOWN<<
3816 719 307 87 >>UNKNOWN<<
7738 698 1370 35 >>UNKNOWN<<
6147 665 374 25 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36998 1021 80 4 >>UNKNOWN<<
24863 883 290 32 >>UNKNOWN<<
6713 542 617 25 >>UNKNOWN<<
8452 457 956 9 >>UNKNOWN<<
24835 344 80 8 >>UNKNOWN<<
3741 261 922 219 >>UNKNOWN<<
15706 222 32 6 >>UNKNOWN<<
29571 205 17 9 >>UNKNOWN<<
12258 192 28 66 >>UNKNOWN<<
29975 191 667 21 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3007 3691 75 BellSouth.net Inc.
28573 2823 1557 111 >>UNKNOWN<<
10620 2661 418 209 >>UNKNOWN<<
17974 2544 855 91 >>UNKNOWN<<
4766 2131 11553 623 >>UNKNOWN<<
18566 2062 381 182 Covad Communications Co.
7545 1994 320 108 TPG Telecom Limited
1785 1991 677 124 >>UNKNOWN<<
22773 1984 2927 122 >>UNKNOWN<<
4755 1769 394 204 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
28573 2823 2712 >>UNKNOWN<<
17974 2544 2453 >>UNKNOWN<<
10620 2661 2452 >>UNKNOWN<<
7545 1994 1886 TPG Telecom Limited
18566 2062 1880 Covad Communications Co.
1785 1991 1867 >>UNKNOWN<<
22773 1984 1862 >>UNKNOWN<<
8402 1629 1613 >>UNKNOWN<<
4755 1769 1565 >>UNKNOWN<<
7303 1732 1511 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
38345 UNALLOCATED 1.8.1.0/24 7497 >>UNKNOWN<<
38345 UNALLOCATED 1.8.8.0/24 7497 >>UNKNOWN<<
38345 UNALLOCATED 1.8.101.0/24 7497 >>UNKNOWN<<
38345 UNALLOCATED 1.8.102.0/24 4641 The Chinese Universi
38345 UNALLOCATED 1.8.103.0/24 6453 >>UNKNOWN<<
38345 UNALLOCATED 1.8.104.0/24 6453 >>UNKNOWN<<
38345 UNALLOCATED 1.8.150.0/24 7497 >>UNKNOWN<<
38345 UNALLOCATED 1.8.151.0/24 7497 >>UNKNOWN<<
38345 UNALLOCATED 1.8.152.0/24 7497 >>UNKNOWN<<
38345 UNALLOCATED 1.8.153.0/24 7497 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/24 2876 >>UNKNOWN<<
128.0.16.0/21 43568 >>UNKNOWN<<
128.0.24.0/21 41794 Sibirskie Seti Ltd.
128.0.46.0/23 39743 >>UNKNOWN<<
128.0.53.0/24 60993 >>UNKNOWN<<
128.0.54.0/24 60972 >>UNKNOWN<<
128.0.55.0/24 48571 efectRO SRL
128.0.57.0/24 60993 >>UNKNOWN<<
128.0.58.0/23 9050 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
62.61.220.0/24 24974 >>UNKNOWN<<
62.61.221.0/24 24974 >>UNKNOWN<<
64.185.224.0/24 27431 >>UNKNOWN<<
64.185.225.0/24 27431 >>UNKNOWN<<
64.185.226.0/24 27431 >>UNKNOWN<<
64.185.227.0/24 27431 >>UNKNOWN<<
64.185.228.0/24 27431 >>UNKNOWN<<
64.185.229.0/24 27431 >>UNKNOWN<<
64.185.230.0/24 27431 >>UNKNOWN<<
64.185.231.0/24 27431 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/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 /8:18 /9:11 /10:31 /11:91 /12:251
/13:481 /14:898 /15:1602 /16:12667 /17:6662 /18:11088
/19:22112 /20:32039 /21:34250 /22:47172 /23:41884 /24:237854
/25:7 /26:11 /27:12 /28:133 /29:200 /30:107
/31:0 /32:132
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2013 2062 Covad Communications Co.
6389 1726 3007 BellSouth.net Inc.
8402 1328 1629 >>UNKNOWN<<
22773 1292 1984 >>UNKNOWN<<
30036 1201 1333 >>UNKNOWN<<
11492 1180 1218 >>UNKNOWN<<
1785 1062 1991 >>UNKNOWN<<
36998 1015 1021 >>UNKNOWN<<
6983 1010 1136 ITC^Deltacom
10620 991 2661 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:793 2:824 3:3 4:16 5:791 6:12
8:550 12:1925 13:3 14:811 15:11 16:3
17:10 20:17 23:368 24:1762 27:1465 31:1337
32:38 33:2 34:5 36:40 37:1859 38:869
39:2 40:170 41:2814 42:190 44:6 46:1921
47:2 49:659 50:725 52:12 54:35 55:7
57:31 58:1071 59:603 60:309 61:1464 62:1133
63:2020 64:4316 65:2155 66:4175 67:2051 68:1081
69:3243 70:785 71:486 72:1916 74:2473 75:322
76:303 77:1105 78:1050 79:616 80:1274 81:1014
82:661 83:569 84:541 85:1153 86:451 87:990
88:537 89:1757 90:147 91:5509 92:592 93:1669
94:1871 95:1656 96:514 97:346 98:1004 99:39
100:29 101:327 103:2770 105:445 106:146 107:208
108:496 109:1829 110:897 111:1038 112:545 113:811
114:703 115:1013 116:941 117:768 118:1088 119:1255
120:372 121:839 122:1760 123:1218 124:1335 125:1373
128:603 129:199 130:312 131:656 132:350 133:155
134:255 135:67 136:221 137:238 138:359 139:189
140:183 141:319 142:515 143:371 144:491 145:93
146:500 147:377 148:667 149:369 150:150 151:523
152:418 153:189 154:41 155:412 156:265 157:349
158:279 159:646 160:342 161:422 162:427 163:199
164:595 165:490 166:272 167:595 168:1016 169:129
170:1049 171:181 172:21 173:1572 174:540 175:453
176:959 177:2048 178:1874 179:37 180:1450 181:464
182:1221 183:380 184:693 185:536 186:2278 187:1245
188:2156 189:1257 190:6819 192:6673 193:5656 194:4589
195:3428 196:1361 197:901 198:4421 199:5298 200:5970
201:2232 202:8674 203:8818 204:4442 205:2555 206:2706
207:2783 208:4042 209:3606 210:2852 211:1502 212:2216
213:1976 214:921 215:98 216:5216 217:1618 218:606
219:341 220:1277 221:557 222:320 223:453
End of report
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