The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Thursday, August 1, 2013

[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Fri 02 Aug, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/

Analysis Summary
----------------

BGP routing table entries examined: 455458
Prefixes after maximum aggregation: 184921
Deaggregation factor: 2.46
Unique aggregates announced to Internet: 228018
Total ASes present in the Internet Routing Table: 40654
Prefixes per ASN: 11.20
Origin-only ASes present in the Internet Routing Table: 34934
Origin ASes announcing only one prefix: 16220
Transit ASes present in the Internet Routing Table: 5713
Transit-only ASes present in the Internet Routing Table: 138
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: 299326
Unregistered ASNs in the Routing Table: 24765
Number of 32-bit ASNs allocated by the RIRs: 4918
Number of 32-bit ASNs visible in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 11398
Special use prefixes present in the Routing Table: 35
Prefixes being announced from unallocated address space: 275
Number of addresses announced to Internet: 2653210368
Equivalent to 158 /8s, 36 /16s and 199 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.8
Total number of prefixes smaller than registry allocations: 158489

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 105591
Total APNIC prefixes after maximum aggregation: 32516
APNIC Deaggregation factor: 3.25
Prefixes being announced from the APNIC address blocks: 107957
Unique aggregates announced from the APNIC address blocks: 45905
APNIC Region origin ASes present in the Internet Routing Table: 4826
APNIC Prefixes per ASN: 22.37
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 796
Average APNIC Region AS path length visible: 3.8
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1
Number of APNIC addresses announced to Internet: 724449792
Equivalent to 43 /8s, 46 /16s and 58 /24s
Percentage of available APNIC address space announced: 84.7

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: 158371
Total ARIN prefixes after maximum aggregation: 80163
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 159175
Unique aggregates announced from the ARIN address blocks: 74133
ARIN Region origin ASes present in the Internet Routing Table: 15728
ARIN Prefixes per ASN: 10.12
ARIN Region origin ASes announcing only one prefix: 5986
ARIN Region transit ASes present in the Internet Routing Table: 1589
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2
Number of ARIN addresses announced to Internet: 1067972352
Equivalent to 63 /8s, 167 /16s and 247 /24s
Percentage of available ARIN address space announced: 56.5

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: 118601
Total RIPE prefixes after maximum aggregation: 60290
RIPE Deaggregation factor: 1.97
Prefixes being announced from the RIPE address blocks: 122217
Unique aggregates announced from the RIPE address blocks: 78279
RIPE Region origin ASes present in the Internet Routing Table: 17294
RIPE Prefixes per ASN: 7.07
RIPE Region origin ASes announcing only one prefix: 8213
RIPE Region transit ASes present in the Internet Routing Table: 2783
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: 1
Number of RIPE addresses announced to Internet: 656837376
Equivalent to 39 /8s, 38 /16s and 139 /24s
Percentage of available RIPE address space announced: 95.5

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: 49059
Total LACNIC prefixes after maximum aggregation: 9377
LACNIC Deaggregation factor: 5.23
Prefixes being announced from the LACNIC address blocks: 53544
Unique aggregates announced from the LACNIC address blocks: 25499
LACNIC Region origin ASes present in the Internet Routing Table: 1982
LACNIC Prefixes per ASN: 27.02
LACNIC Region origin ASes announcing only one prefix: 582
LACNIC Region transit ASes present in the Internet Routing Table: 349
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2
Number of LACNIC addresses announced to Internet: 133787904
Equivalent to 7 /8s, 249 /16s and 113 /24s
Percentage of available LACNIC address space announced: 79.7

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: 11712
Total AfriNIC prefixes after maximum aggregation: 2535
AfriNIC Deaggregation factor: 4.62
Prefixes being announced from the AfriNIC address blocks: 12289
Unique aggregates announced from the AfriNIC address blocks: 3943
AfriNIC Region origin ASes present in the Internet Routing Table: 651
AfriNIC Prefixes per ASN: 18.88
AfriNIC Region origin ASes announcing only one prefix: 192
AfriNIC Region transit ASes present in the Internet Routing Table: 125
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: 47548416
Equivalent to 2 /8s, 213 /16s and 136 /24s
Percentage of available AfriNIC address space announced: 47.2

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
17974 2650 871 92 >>UNKNOWN<<
4766 2112 11553 618 Korea Telecom
7545 2033 320 112 TPG Telecom Limited
4755 1785 393 203 TATA Communications formerly
9829 1526 1221 45 >>UNKNOWN<<
9583 1222 92 508 >>UNKNOWN<<
9498 1174 309 72 BHARTI Airtel Ltd.
7552 1112 1080 13 >>UNKNOWN<<
24560 1087 394 164 >>UNKNOWN<<
4808 1075 2048 315 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 2982 3689 64 BellSouth.net Inc.
18566 2063 382 183 Covad Communications Co.
1785 2003 679 124 >>UNKNOWN<<
22773 2001 2927 123 >>UNKNOWN<<
20115 1671 1623 622 Charter Communications
4323 1618 1121 406 >>UNKNOWN<<
701 1522 11120 801 >>UNKNOWN<<
30036 1345 304 651 >>UNKNOWN<<
7018 1328 11069 840 >>UNKNOWN<<
11492 1221 218 363 >>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 1571 544 16 >>UNKNOWN<<
34984 1291 241 215 >>UNKNOWN<<
2118 1155 97 13 >>UNKNOWN<<
31148 977 43 19 >>UNKNOWN<<
20940 945 334 737 >>UNKNOWN<<
6830 850 2371 433 >>UNKNOWN<<
13188 840 98 78 >>UNKNOWN<<
8551 827 370 45 Bezeqint Internet Backbone
12479 677 794 55 >>UNKNOWN<<
9198 605 343 21 >>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 2979 1591 110 >>UNKNOWN<<
10620 2642 420 227 >>UNKNOWN<<
7303 1728 1155 219 >>UNKNOWN<<
18881 1269 844 20 >>UNKNOWN<<
8151 1260 2753 386 >>UNKNOWN<<
6503 817 434 65 Axtel, S.A.B. de C.V.
27947 810 95 92 Telconet S.A
11830 749 364 15 >>UNKNOWN<<
3816 729 307 87 >>UNKNOWN<<
7738 698 1370 35 >>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 1851 112 5 MOBITEL
24863 875 274 30 >>UNKNOWN<<
6713 542 617 25 Itissalat Al-MAGHRIB
8452 434 956 9 >>UNKNOWN<<
24835 290 80 8 >>UNKNOWN<<
3741 258 921 217 >>UNKNOWN<<
15706 221 32 6 >>UNKNOWN<<
29571 220 17 12 >>UNKNOWN<<
36992 209 527 22 >>UNKNOWN<<
12258 193 28 71 MWEB-12258

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 2982 3689 64 BellSouth.net Inc.
28573 2979 1591 110 >>UNKNOWN<<
17974 2650 871 92 >>UNKNOWN<<
10620 2642 420 227 >>UNKNOWN<<
4766 2112 11553 618 Korea Telecom
18566 2063 382 183 Covad Communications Co.
7545 2033 320 112 TPG Telecom Limited
1785 2003 679 124 >>UNKNOWN<<
22773 2001 2927 123 >>UNKNOWN<<
36998 1851 112 5 MOBITEL

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 2979 2869 >>UNKNOWN<<
17974 2650 2558 >>UNKNOWN<<
10620 2642 2415 >>UNKNOWN<<
7545 2033 1921 TPG Telecom Limited
18566 2063 1880 Covad Communications Co.
1785 2003 1879 >>UNKNOWN<<
22773 2001 1878 >>UNKNOWN<<
36998 1851 1846 MOBITEL
4755 1785 1582 TATA Communications formerly
8402 1571 1555 >>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
10037 UNALLOCATED 1.177.128.0/22 9845 CJ-CABLENET
10037 UNALLOCATED 1.177.132.0/22 9845 CJ-CABLENET
10037 UNALLOCATED 1.177.136.0/22 9845 CJ-CABLENET
10037 UNALLOCATED 1.177.140.0/22 9845 CJ-CABLENET
10037 UNALLOCATED 1.177.152.0/22 9845 CJ-CABLENET
10037 UNALLOCATED 1.177.156.0/22 9845 CJ-CABLENET
9697 UNALLOCATED 1.177.160.0/22 9845 CJ-CABLENET
9697 UNALLOCATED 1.177.164.0/22 9845 CJ-CABLENET
9697 UNALLOCATED 1.177.168.0/22 9845 CJ-CABLENET
9697 UNALLOCATED 1.177.172.0/22 9845 CJ-CABLENET

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 2541 >>UNKNOWN<<
128.0.16.0/21 43568 Romerike Bredband AS
128.0.24.0/21 41794 Sibirskie Seti Ltd.
128.0.40.0/24 60449 >>UNKNOWN<<
128.0.42.0/24 60619 >>UNKNOWN<<
128.0.43.0/24 60619 >>UNKNOWN<<
128.0.45.0/24 60657 >>UNKNOWN<<
128.0.46.0/23 39743 Voxility S.R.L.
128.0.53.0/24 60993 >>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<<
62.182.96.0/23 15830 >>UNKNOWN<<
64.185.224.0/24 27431 JTL Networks Inc.
64.185.225.0/24 27431 JTL Networks Inc.
64.185.226.0/24 27431 JTL Networks Inc.
64.185.227.0/24 27431 JTL Networks Inc.
64.185.228.0/24 27431 JTL Networks Inc.
64.185.229.0/24 27431 JTL Networks Inc.
64.185.230.0/24 27431 JTL Networks Inc.

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 /8:17 /9:11 /10:31 /11:92 /12:251
/13:477 /14:900 /15:1603 /16:12704 /17:6643 /18:11026
/19:22489 /20:32171 /21:34530 /22:48225 /23:42289 /24:241389
/25:8 /26:11 /27:11 /28:134 /29:193 /30:118
/31:0 /32:135

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2014 2063 Covad Communications Co.
36998 1818 1851 MOBITEL
6389 1715 2982 BellSouth.net Inc.
22773 1303 2001 >>UNKNOWN<<
8402 1281 1571 >>UNKNOWN<<
30036 1208 1345 >>UNKNOWN<<
11492 1182 1221 >>UNKNOWN<<
1785 1077 2003 >>UNKNOWN<<
6983 1020 1146 ITC^Deltacom
10620 985 2642 >>UNKNOWN<<

Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:817 2:694 3:3 4:16 5:901 6:16
8:572 12:1925 13:2 14:844 15:11 16:3
17:10 18:19 20:17 23:297 24:1766 27:1523
31:1317 32:40 33:2 34:5 36:71 37:1847
38:886 39:2 40:174 41:3381 42:230 44:8
46:1931 47:3 49:650 50:803 52:12 54:37
55:6 57:29 58:1083 59:608 60:329 61:1483
62:1178 63:2003 64:4345 65:2141 66:4184 67:2019
68:1092 69:3275 70:800 71:488 72:1912 74:2505
75:324 76:305 77:1094 78:1046 79:609 80:1295
81:1014 82:637 83:583 84:576 85:1236 86:466
87:1024 88:539 89:1803 90:154 91:5514 92:633
93:1684 94:1909 95:1627 96:590 97:344 98:1026
99:41 100:28 101:343 103:3050 105:523 106:139
107:208 108:502 109:1856 110:933 111:1069 112:562
113:811 114:684 115:1052 116:941 117:788 118:1120
119:1268 120:350 121:846 122:1766 123:1233 124:1335
125:1394 128:593 129:197 130:295 131:661 132:354
133:160 134:260 135:72 136:239 137:239 138:343
139:187 140:175 141:305 142:513 143:397 144:509
145:91 146:521 147:412 148:650 149:349 150:153
151:553 152:413 153:190 154:28 155:415 156:271
157:354 158:276 159:658 160:349 161:426 162:512
163:202 164:576 165:507 166:254 167:598 168:1018
169:125 170:1059 171:186 172:23 173:1578 174:556
175:487 176:1144 177:2129 178:1883 179:70 180:1495
181:592 182:1282 183:417 184:670 185:700 186:2335
187:1379 188:1878 189:1303 190:6772 192:6784 193:5613
194:4709 195:3587 196:1329 197:997 198:4505 199:5323
200:5967 201:2425 202:8670 203:8812 204:4440 205:2566
206:2733 207:2826 208:3985 209:3584 210:2819 211:1524
212:2266 213:2020 214:907 215:99 216:5214 217:1629
218:606 219:325 220:1270 221:552 222:317 223:459


End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats
Posted by Admin at 3:30 PM

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)