* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Tue 03 Jul, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 407912
Prefixes after maximum aggregation: 173295
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 202443
Total ASes present in the Internet Routing Table: 38702
Prefixes per ASN: 10.54
Origin-only ASes present in the Internet Routing Table: 33345
Origin ASes announcing only one prefix: 15718
Transit ASes present in the Internet Routing Table: 5357
Transit-only ASes present in the Internet Routing Table: 115
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN ( 51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1028
Unregistered ASNs in the Routing Table: 165
Number of 32-bit ASNs allocated by the RIRs: 2924
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 6540
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 164
Number of addresses announced to Internet: 2591027456
Equivalent to 154 /8s, 111 /16s and 241 /24s
Percentage of available address space announced: 69.9
Percentage of allocated address space announced: 70.0
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.1
Total number of prefixes smaller than registry allocations: 140626
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95188
Total APNIC prefixes after maximum aggregation: 31197
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 96228
Unique aggregates announced from the APNIC address blocks: 42033
APNIC Region origin ASes present in the Internet Routing Table: 4670
APNIC Prefixes per ASN: 20.61
APNIC Region origin ASes announcing only one prefix: 1274
APNIC Region transit ASes present in the Internet Routing Table: 726
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 701228032
Equivalent to 41 /8s, 203 /16s and 228 /24s
Percentage of available APNIC address space announced: 82.0
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: 150941
Total ARIN prefixes after maximum aggregation: 76821
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 151825
Unique aggregates announced from the ARIN address blocks: 68295
ARIN Region origin ASes present in the Internet Routing Table: 15116
ARIN Prefixes per ASN: 10.04
ARIN Region origin ASes announcing only one prefix: 5754
ARIN Region transit ASes present in the Internet Routing Table: 1514
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: 0
Number of ARIN addresses announced to Internet: 1080430592
Equivalent to 64 /8s, 102 /16s and 16 /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, 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: 104042
Total RIPE prefixes after maximum aggregation: 54881
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 106192
Unique aggregates announced from the RIPE address blocks: 67022
RIPE Region origin ASes present in the Internet Routing Table: 16622
RIPE Prefixes per ASN: 6.39
RIPE Region origin ASes announcing only one prefix: 8077
RIPE Region transit ASes present in the Internet Routing Table: 2632
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 634697216
Equivalent to 37 /8s, 212 /16s and 182 /24s
Percentage of available RIPE address space announced: 92.3
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: 41126
Total LACNIC prefixes after maximum aggregation: 8184
LACNIC Deaggregation factor: 5.03
Prefixes being announced from the LACNIC address blocks: 43705
Unique aggregates announced from the LACNIC address blocks: 21660
LACNIC Region origin ASes present in the Internet Routing Table: 1597
LACNIC Prefixes per ASN: 27.37
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 301
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 111606016
Equivalent to 6 /8s, 166 /16s and 249 /24s
Percentage of available LACNIC address space announced: 66.5
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 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: 9348
Total AfriNIC prefixes after maximum aggregation: 2158
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 9797
Unique aggregates announced from the AfriNIC address blocks: 3289
AfriNIC Region origin ASes present in the Internet Routing Table: 549
AfriNIC Prefixes per ASN: 17.85
AfriNIC Region origin ASes announcing only one prefix: 174
AfriNIC Region transit ASes present in the Internet Routing Table: 124
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: 0
Number of AfriNIC addresses announced to Internet: 40486912
Equivalent to 2 /8s, 105 /16s and 200 /24s
Percentage of available AfriNIC address space announced: 40.2
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
4766 1996 11107 763 Korea Telecom (KIX)
17974 1887 541 78 PT Telekomunikasi Indonesia
7545 1685 301 87 TPG Internet Pty Ltd
4755 1573 384 152 TATA Communications formerly
9829 1304 1085 28 National Internet Backbone
9583 1170 88 510 Sify Limited
7552 1075 1062 11 Vietel Corporation
24560 1034 385 165 Bharti Airtel Ltd., Telemedia
9498 973 291 65 BHARTI Airtel Ltd.
4808 956 1942 283 CNCGROUP IP network China169
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 3391 3789 191 BellSouth.net Inc.
7029 3268 1006 177 Windstream Communications Inc
18566 2091 382 180 Covad Communications Co.
1785 1930 681 132 PaeTec Communications, Inc.
22773 1655 2911 121 Cox Communications Inc.
20115 1651 1573 616 Charter Communications
4323 1571 1059 383 tw telecom holdings, inc.
30036 1440 271 750 Mediacom Communications Corp
7018 1258 10061 826 AT&T Services, Inc.
11492 1191 216 354 CABLE ONE, INC.
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 1618 544 16 Corbina telecom
2118 1288 97 14 EUnet/RELCOM Autonomous Syste
12479 776 731 92 France Telecom Espana SA
34984 718 189 175 BILISIM TELEKOM
31148 690 37 9 FreeNet ISP
6830 688 2234 436 UPC Broadband
20940 651 211 513 Akamai Technologies European
8551 603 364 61 Bezeq International
9116 512 326 31 Goldenlines main autonomous s
13188 504 100 10 Ukraine
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
10620 1982 345 204 Types of queries are: POCs, o
28573 1929 1213 54 Types of queries are: POCs, o
6503 1517 418 67 Axtel, S.A.B. de C.V.
7303 1455 933 193 Telecom Argentina S.A.
8151 1352 3047 338 Uninet S.A. de C.V.
27947 684 74 88 Telconet S.A
11172 641 107 75 Alestra, S. de R.L. de C.V.
3816 593 246 90 Types of queries are: POCs, o
22047 583 326 15 Types of queries are: POCs, o
14117 573 67 65 Telefonica del Sur S.A.
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
8452 1268 958 13 TEDATA
24863 864 274 32 LINKdotNET AS number
6713 500 649 18 Itissalat Al-MAGHRIB
24835 321 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 210 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
29975 167 571 19 Vodacom
15706 164 32 6 Sudatel Internet Exchange Aut
29571 160 15 15 Ci Telecom Autonomous system
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 3391 3789 191 BellSouth.net Inc.
7029 3268 1006 177 Windstream Communications Inc
18566 2091 382 180 Covad Communications Co.
4766 1996 11107 763 Korea Telecom (KIX)
10620 1982 345 204 Types of queries are: POCs, o
1785 1930 681 132 PaeTec Communications, Inc.
28573 1929 1213 54 Types of queries are: POCs, o
17974 1887 541 78 PT Telekomunikasi Indonesia
7545 1685 301 87 TPG Internet Pty Ltd
22773 1655 2911 121 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3268 3091 Windstream Communications Inc
18566 2091 1911 Covad Communications Co.
28573 1929 1875 Types of queries are: POCs, o
17974 1887 1809 PT Telekomunikasi Indonesia
1785 1930 1798 PaeTec Communications, Inc.
10620 1982 1778 Types of queries are: POCs, o
8402 1618 1602 Corbina telecom
7545 1685 1598 TPG Internet Pty Ltd
22773 1655 1534 Cox Communications Inc.
6503 1517 1450 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
19577 UNALLOCATED 12.41.188.0/24 7832 WW/Precision Communi
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T Services, Inc.
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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.104.240.0/21 20645 PurePeak Limited
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /8:20 /9:13 /10:29 /11:83 /12:236
/13:462 /14:836 /15:1511 /16:12237 /17:6344 /18:10650
/19:20726 /20:29500 /21:31002 /22:40368 /23:38591 /24:214733
/25:11 /26:20 /27:18 /28:148 /29:149 /30:84
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2622 3268 Windstream Communications Inc
18566 2041 2091 Covad Communications Co.
6389 1871 3391 BellSouth.net Inc.
30036 1377 1440 Mediacom Communications Corp
8402 1321 1618 Corbina telecom
11492 1154 1191 CABLE ONE, INC.
22773 1086 1655 Cox Communications Inc.
6503 1053 1517 Axtel, S.A.B. de C.V.
1785 1041 1930 PaeTec Communications, Inc.
8452 1028 1268 TEDATA
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:521 2:709 3:1 4:13 5:96 6:3
8:429 12:1973 13:1 14:622 15:12 16:3
17:5 20:24 23:183 24:1786 27:1314 31:1015
32:51 33:2 34:2 36:9 37:591 38:811
39:1 40:126 41:3142 42:142 44:3 46:1451
47:2 49:417 50:562 52:13 54:12 55:8
56:1 57:31 58:918 59:497 60:250 61:1116
62:1002 63:2028 64:4251 65:2245 66:4464 67:2014
68:1152 69:3197 70:980 71:508 72:1835 74:2604
75:473 76:332 77:939 78:892 79:486 80:1218
81:944 82:678 83:527 84:493 85:1180 86:440
87:934 88:344 89:1739 90:298 91:4980 92:577
93:1370 94:1562 95:1231 96:390 97:318 98:914
99:36 100:18 101:248 103:1189 106:100 107:189
108:338 109:1409 110:769 111:935 112:413 113:614
114:642 115:820 116:900 117:713 118:920 119:1171
120:342 121:680 122:1635 123:1094 124:1328 125:1255
128:515 129:182 130:251 131:631 132:285 133:22
134:234 135:61 136:215 137:236 138:336 139:172
140:468 141:258 142:413 143:367 144:533 145:76
146:507 147:287 148:747 149:317 150:150 151:182
152:472 153:176 154:16 155:451 156:216 157:336
158:191 159:544 160:341 161:245 162:370 163:181
164:646 165:410 166:583 167:476 168:908 169:125
170:888 171:145 172:5 173:1744 174:627 175:428
176:549 177:874 178:1534 180:1258 181:98 182:1001
183:243 184:537 185:1 186:1908 187:1082 188:1347
189:1596 190:5731 192:5971 193:5535 194:4546 195:3429
196:1211 197:171 198:3622 199:4772 200:5822 201:1977
202:8417 203:8521 204:4256 205:2510 206:2682 207:2727
208:4032 209:3600 210:2706 211:1532 212:2033 213:1939
214:849 215:79 216:5080 217:1568 218:538 219:301
220:1234 221:552 222:285 223:343
End of report
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