Routing Table Report 08:00 +10GMT Mon 16 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 385208
Prefixes after maximum aggregation: 166707
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 190948
Total ASes present in the Internet Routing Table: 37843
Prefixes per ASN: 10.18
Origin-only ASes present in the Internet Routing Table: 32612
Origin ASes announcing only one prefix: 15538
Transit ASes present in the Internet Routing Table: 5231
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2864
Unregistered ASNs in the Routing Table: 1132
Number of 32-bit ASNs allocated by the RIRs: 2187
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4457
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2526045440
Equivalent to 150 /8s, 144 /16s and 101 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 161647
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91717
Total APNIC prefixes after maximum aggregation: 30063
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89068
Unique aggregates announced from the APNIC address blocks: 38957
APNIC Region origin ASes present in the Internet Routing Table: 4588
APNIC Prefixes per ASN: 19.41
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 633276672
Equivalent to 37 /8s, 191 /16s and 9 /24s
Percentage of available APNIC address space announced: 80.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 146219
Total ARIN prefixes after maximum aggregation: 74648
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118480
Unique aggregates announced from the ARIN address blocks: 49108
ARIN Region origin ASes present in the Internet Routing Table: 14783
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5666
ARIN Region transit ASes present in the Internet Routing Table: 1499
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804812800
Equivalent to 47 /8s, 248 /16s and 120 /24s
Percentage of available ARIN address space announced: 64.0
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, 173/8,
174/8, 184/8, 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: 97006
Total RIPE prefixes after maximum aggregation: 51918
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 88840
Unique aggregates announced from the RIPE address blocks: 55606
RIPE Region origin ASes present in the Internet Routing Table: 16245
RIPE Prefixes per ASN: 5.47
RIPE Region origin ASes announcing only one prefix: 7996
RIPE Region transit ASes present in the Internet Routing Table: 2566
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 497394176
Equivalent to 29 /8s, 165 /16s and 162 /24s
Percentage of available RIPE address space announced: 80.1
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 36650
Total LACNIC prefixes after maximum aggregation: 7944
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 36428
Unique aggregates announced from the LACNIC address blocks: 19292
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.49
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 278
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95374592
Equivalent to 5 /8s, 175 /16s and 77 /24s
Percentage of available LACNIC address space announced: 63.2
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,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8455
Total AfriNIC prefixes after maximum aggregation: 2062
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6514
Unique aggregates announced from the AfriNIC address blocks: 2075
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 12.85
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 30832128
Equivalent to 1 /8s, 214 /16s and 118 /24s
Percentage of available AfriNIC address space announced: 45.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1905 11097 659 Korea Telecom (KIX)
17974 1636 503 36 PT Telekomunikasi Indonesia
7545 1622 303 85 TPG Internet Pty Ltd
4755 1499 385 156 TATA Communications formerly
9829 1163 989 28 National Internet Backbone
7552 1118 1062 11 Vietel Corporation
9583 1118 81 492 Sify Limited
24560 1011 384 167 Bharti Airtel Ltd., Telemedia
4808 982 1947 277 CNCGROUP IP network China169
18101 947 131 156 Reliance Infocom Ltd Internet
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 3456 3807 208 BellSouth.net Inc.
7029 3255 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 680 122 PaeTec Communications, Inc.
20115 1617 1552 619 Charter Communications
4323 1604 1078 383 tw telecom holdings, inc.
22773 1516 2909 108 Cox Communications Inc.
30036 1488 263 695 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1308 7042 858 AT&T Services, 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 1583 480 15 Corbina telecom
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
2118 927 99 14 EUnet/RELCOM Autonomous Syste
31148 656 35 9 FreeNet ISP
6830 644 1928 413 UPC Broadband
34984 638 188 173 BILISIM TELEKOM
8551 573 360 81 Bezeq International
20940 559 181 448 Akamai Technologies European
12479 547 636 53 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
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 1738 321 159 Types of queries are: POCs, o
28573 1571 1066 77 Types of queries are: POCs, o
8151 1318 2979 336 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina S.A.
27947 612 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
3816 553 238 92 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
11172 535 102 101 Alestra, S. de R.L. de C.V.
6503 530 434 69 Axtel, S.A.B. de C.V.
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 1028 958 13 TEDATA
24863 792 146 33 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
33776 240 13 8 Starcomms Nigeria Limited
15706 239 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 MTN Network Solutions
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 3456 3807 208 BellSouth.net Inc.
7029 3255 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1905 11097 659 Korea Telecom (KIX)
1785 1867 680 122 PaeTec Communications, Inc.
10620 1738 321 159 Types of queries are: POCs, o
17974 1636 503 36 PT Telekomunikasi Indonesia
7545 1622 303 85 TPG Internet Pty Ltd
20115 1617 1552 619 Charter Communications
4323 1604 1078 383 tw telecom holdings, 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 3255 3042 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1745 PaeTec Communications, Inc.
17974 1636 1600 PT Telekomunikasi Indonesia
10620 1738 1579 Types of queries are: POCs, o
8402 1583 1568 Corbina telecom
7545 1622 1537 TPG Internet Pty Ltd
28573 1571 1494 Types of queries are: POCs, o
22773 1516 1408 Cox Communications Inc.
4755 1499 1343 TATA Communications formerly
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.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
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.
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
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
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>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 /8:20 /9:12 /10:27 /11:81 /12:235
/13:463 /14:815 /15:1455 /16:12065 /17:6130 /18:10150
/19:20308 /20:27984 /21:28452 /22:38616 /23:36108 /24:201742
/25:11 /26:21 /27:20 /28:152 /29:135 /30:65
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2860 3255 Windstream Communications Inc
6389 2116 3456 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1633 1738 Types of queries are: POCs, o
8402 1562 1583 Corbina telecom
30036 1447 1488 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1066 1867 PaeTec Communications, Inc.
15557 1046 1096 NEUF CEGETEL (formerly LDCOM
7011 1042 1159 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:501 2:445 4:15 5:1 6:3 8:369
12:1949 13:1 14:576 15:11 16:3 17:6
20:9 23:102 24:1707 27:1170 31:859 32:62
33:2 34:2 36:8 37:88 38:789 40:114
41:2906 42:86 44:3 46:1217 47:3 49:317
50:512 52:13 55:7 56:2 57:37 58:903
59:482 60:342 61:1080 62:944 63:1959 64:4088
65:2290 66:4369 67:1997 68:1154 69:3146 70:917
71:428 72:1798 74:2647 75:446 76:315 77:948
78:884 79:498 80:1188 81:863 82:555 83:529
84:585 85:1152 86:748 87:910 88:336 89:1595
90:266 91:4410 92:534 93:1532 94:1350 95:1057
96:390 97:296 98:795 99:38 100:18 101:128
103:631 106:9 107:133 108:125 109:1421 110:681
111:836 112:404 113:512 114:607 115:738 116:858
117:707 118:905 119:1223 120:356 121:648 122:1587
123:1049 124:1302 125:1306 128:487 129:184 130:196
131:584 132:154 133:21 134:222 135:59 136:211
137:148 138:288 139:144 140:463 141:259 142:361
143:380 144:501 145:68 146:479 147:224 148:614
149:278 150:159 151:192 152:445 153:170 154:6
155:409 156:207 157:336 158:155 159:438 160:319
161:204 162:334 163:177 164:525 165:393 166:562
167:456 168:847 169:145 170:830 171:105 172:4
173:1778 174:590 175:422 176:342 177:453 178:1186
180:1222 181:43 182:679 183:267 184:431 185:1
186:1496 187:829 188:1039 189:1160 190:5325 192:5949
193:5462 194:3948 195:3306 196:1263 197:168 198:3575
199:4266 200:5541 201:1700 202:8192 203:8502 204:4272
205:2405 206:2653 207:2736 208:4007 209:3524 210:2673
211:1451 212:1988 213:1821 214:830 215:93 216:4907
217:1473 218:552 219:333 220:1213 221:541 222:297
223:252
End of report
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