Routing Table Report 08:00 +10GMT Wed 15 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 391275
Prefixes after maximum aggregation: 167682
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 192412
Total ASes present in the Internet Routing Table: 38010
Prefixes per ASN: 10.29
Origin-only ASes present in the Internet Routing Table: 32743
Origin ASes announcing only one prefix: 15547
Transit ASes present in the Internet Routing Table: 5267
Transit-only ASes present in the Internet Routing Table: 130
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: 1124
Unregistered ASNs in the Routing Table: 189
Number of 32-bit ASNs allocated by the RIRs: 2278
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4718
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 189
Number of addresses announced to Internet: 2532314368
Equivalent to 150 /8s, 240 /16s and 13 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 164773
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92593
Total APNIC prefixes after maximum aggregation: 30270
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 89889
Unique aggregates announced from the APNIC address blocks: 39242
APNIC Region origin ASes present in the Internet Routing Table: 4599
APNIC Prefixes per ASN: 19.55
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 704
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 635652096
Equivalent to 37 /8s, 227 /16s and 72 /24s
Percentage of available APNIC address space announced: 80.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 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: 147155
Total ARIN prefixes after maximum aggregation: 74894
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119344
Unique aggregates announced from the ARIN address blocks: 49433
ARIN Region origin ASes present in the Internet Routing Table: 14844
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5681
ARIN Region transit ASes present in the Internet Routing Table: 1501
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804631808
Equivalent to 47 /8s, 245 /16s and 181 /24s
Percentage of available ARIN address space announced: 63.9
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: 99303
Total RIPE prefixes after maximum aggregation: 52397
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91071
Unique aggregates announced from the RIPE address blocks: 56083
RIPE Region origin ASes present in the Internet Routing Table: 16315
RIPE Prefixes per ASN: 5.58
RIPE Region origin ASes announcing only one prefix: 8009
RIPE Region transit ASes present in the Internet Routing Table: 2598
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 500951040
Equivalent to 29 /8s, 219 /16s and 232 /24s
Percentage of available RIPE address space announced: 80.7
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: 37879
Total LACNIC prefixes after maximum aggregation: 7969
LACNIC Deaggregation factor: 4.75
Prefixes being announced from the LACNIC address blocks: 37667
Unique aggregates announced from the LACNIC address blocks: 19532
LACNIC Region origin ASes present in the Internet Routing Table: 1562
LACNIC Prefixes per ASN: 24.11
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 96524288
Equivalent to 5 /8s, 192 /16s and 216 /24s
Percentage of available LACNIC address space announced: 63.9
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: 8917
Total AfriNIC prefixes after maximum aggregation: 2072
AfriNIC Deaggregation factor: 4.30
Prefixes being announced from the AfriNIC address blocks: 6951
Unique aggregates announced from the AfriNIC address blocks: 2123
AfriNIC Region origin ASes present in the Internet Routing Table: 513
AfriNIC Prefixes per ASN: 13.55
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 112
Average AfriNIC Region AS path length visible: 3.3
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: 30934272
Equivalent to 1 /8s, 216 /16s and 5 /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, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1913 11098 670 Korea Telecom (KIX)
17974 1662 503 36 PT Telekomunikasi Indonesia
7545 1640 303 86 TPG Internet Pty Ltd
4755 1528 384 157 TATA Communications formerly
9829 1170 988 32 National Internet Backbone
9583 1125 84 482 Sify Limited
7552 1095 1062 11 Vietel Corporation
24560 1013 385 167 Bharti Airtel Ltd., Telemedia
18101 952 131 156 Reliance Infocom Ltd Internet
4808 941 1929 259 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 3441 3807 202 BellSouth.net Inc.
7029 3422 1040 172 Windstream Communications Inc
18566 2092 382 177 Covad Communications Co.
1785 1872 680 124 PaeTec Communications, Inc.
20115 1625 1550 631 Charter Communications
4323 1609 1078 386 tw telecom holdings, inc.
22773 1517 2910 110 Cox Communications Inc.
30036 1390 245 750 Mediacom Communications Corp
19262 1387 4703 397 Verizon Online LLC
7018 1314 7028 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 1606 480 15 Corbina telecom
2118 1382 97 13 EUnet/RELCOM Autonomous Syste
15557 1095 2161 63 NEUF CEGETEL (formerly LDCOM
34984 650 188 172 BILISIM TELEKOM
6830 644 1927 413 UPC Broadband
20940 602 195 472 Akamai Technologies European
12479 600 643 54 France Telecom Espana SA
8551 577 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 538 37 9 FreeNet ISP
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 1729 323 176 Types of queries are: POCs, o
28573 1650 1085 69 Types of queries are: POCs, o
8151 1333 2984 335 Uninet S.A. de C.V.
7303 1263 758 182 Telecom Argentina S.A.
26615 897 672 33 Tim Celular S.A.
27947 635 67 107 Telconet S.A
11172 630 107 73 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
3816 553 238 91 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia 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 1245 958 13 TEDATA
24863 827 155 41 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 276 939 229 The Internet Solution
33776 237 13 14 Starcomms Nigeria Limited
15706 222 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
29571 189 17 11 Ci Telecom Autonomous system
16637 160 664 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 3441 3807 202 BellSouth.net Inc.
7029 3422 1040 172 Windstream Communications Inc
18566 2092 382 177 Covad Communications Co.
4766 1913 11098 670 Korea Telecom (KIX)
1785 1872 680 124 PaeTec Communications, Inc.
10620 1729 323 176 Types of queries are: POCs, o
17974 1662 503 36 PT Telekomunikasi Indonesia
28573 1650 1085 69 Types of queries are: POCs, o
7545 1640 303 86 TPG Internet Pty Ltd
20115 1625 1550 631 Charter Communications
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 3422 3250 Windstream Communications Inc
18566 2092 1915 Covad Communications Co.
1785 1872 1748 PaeTec Communications, Inc.
17974 1662 1626 PT Telekomunikasi Indonesia
8402 1606 1591 Corbina telecom
28573 1650 1581 Types of queries are: POCs, o
7545 1640 1554 TPG Internet Pty Ltd
10620 1729 1553 Types of queries are: POCs, o
22773 1517 1407 Cox Communications Inc.
4755 1528 1371 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
23.27.0.0/16 18779 Guru.com
37.98.200.0/21 56687 Nimad Rah Khoozestan PLC
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 /11:80 /12:232
/13:458 /14:814 /15:1466 /16:12079 /17:6182 /18:10256
/19:20469 /20:28144 /21:28900 /22:39388 /23:36726 /24:205480
/25:11 /26:21 /27:19 /28:153 /29:136 /30:65
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3061 3422 Windstream Communications Inc
6389 2110 3441 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1626 1729 Types of queries are: POCs, o
8402 1585 1606 Corbina telecom
30036 1347 1390 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1065 1872 PaeTec Communications, Inc.
8452 1054 1245 TEDATA
15557 1045 1095 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:505 2:639 4:14 5:1 6:3 8:383
12:1960 13:1 14:593 15:11 16:3 17:7
20:9 23:134 24:1721 27:1188 31:943 32:60
33:2 34:2 36:9 37:181 38:774 40:115
41:3151 42:95 44:3 46:1282 47:3 49:330
50:512 52:13 54:2 55:9 56:3 57:37
58:919 59:483 60:341 61:1091 62:947 63:2005
64:4115 65:2282 66:4420 67:2033 68:1175 69:3163
70:929 71:412 72:1794 74:2651 75:463 76:322
77:975 78:933 79:500 80:1232 81:879 82:578
83:525 84:581 85:1158 86:749 87:918 88:334
89:1549 90:270 91:4483 92:543 93:1335 94:1357
95:1063 96:413 97:310 98:821 99:38 100:4
101:143 103:764 106:64 107:153 108:151 109:1490
110:695 111:848 112:426 113:527 114:604 115:747
116:851 117:704 118:896 119:1239 120:360 121:652
122:1585 123:1065 124:1298 125:1320 128:482 129:182
130:209 131:586 132:166 133:21 134:223 135:60
136:214 137:150 138:286 139:144 140:462 141:261
142:371 143:406 144:515 145:70 146:478 147:241
148:712 149:302 150:156 151:196 152:445 153:170
154:6 155:415 156:208 157:336 158:158 159:443
160:321 161:227 162:338 163:178 164:527 165:391
166:556 167:455 168:753 169:146 170:834 171:114
172:2 173:1732 174:601 175:418 176:512 177:487
178:1250 180:1176 181:65 182:708 183:278 184:424
185:1 186:2052 187:847 188:1034 189:1172 190:5426
192:5941 193:5516 194:4337 195:3401 196:1267 197:166
198:3569 199:4333 200:5611 201:1731 202:8222 203:8537
204:4280 205:2421 206:2661 207:2724 208:4055 209:3538
210:2688 211:1447 212:2056 213:1842 214:856 215:100
216:5004 217:1479 218:536 219:335 220:1215 221:542
222:298 223:300
End of report