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, December 19, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Fri 20 Dec, 2013

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

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

BGP routing table entries examined: 471222
Prefixes after maximum aggregation: 188956
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 235957
Total ASes present in the Internet Routing Table: 45639
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35548
Origin ASes announcing only one prefix: 16287
Transit ASes present in the Internet Routing Table: 5779
Transit-only ASes present in the Internet Routing Table: 155
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 30
Max AS path prepend of ASN ( 59482) 25
Prefixes from unregistered ASNs in the Routing Table: 1193
Unregistered ASNs in the Routing Table: 334
Number of 32-bit ASNs allocated by the RIRs: 5547
Number of 32-bit ASNs visible in the Routing Table: 4312
Prefixes from 32-bit ASNs in the Routing Table: 13474
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1439
Number of addresses announced to Internet: 2659535868
Equivalent to 158 /8s, 133 /16s and 75 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163938

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

Prefixes being announced by APNIC Region ASes: 110541
Total APNIC prefixes after maximum aggregation: 33495
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 112844
Unique aggregates announced from the APNIC address blocks: 47938
APNIC Region origin ASes present in the Internet Routing Table: 4846
APNIC Prefixes per ASN: 23.29
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 824
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 791
Number of APNIC addresses announced to Internet: 729161212
Equivalent to 43 /8s, 118 /16s and 29 /24s
Percentage of available APNIC address space announced: 85.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 162275
Total ARIN prefixes after maximum aggregation: 81510
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163108
Unique aggregates announced from the ARIN address blocks: 75885
ARIN Region origin ASes present in the Internet Routing Table: 15888
ARIN Prefixes per ASN: 10.27
ARIN Region origin ASes announcing only one prefix: 5998
ARIN Region transit ASes present in the Internet Routing Table: 1629
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 46
Number of ARIN addresses announced to Internet: 1074575104
Equivalent to 64 /8s, 12 /16s and 183 /24s
Percentage of available ARIN address space announced: 56.8

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: 119307
Total RIPE prefixes after maximum aggregation: 61281
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 123105
Unique aggregates announced from the RIPE address blocks: 79282
RIPE Region origin ASes present in the Internet Routing Table: 17554
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8317
RIPE Region transit ASes present in the Internet Routing Table: 2748
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2534
Number of RIPE addresses announced to Internet: 655701760
Equivalent to 39 /8s, 21 /16s and 55 /24s
Percentage of available RIPE address space announced: 95.3

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, 61952-62463, 196608-200191
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: 52962
Total LACNIC prefixes after maximum aggregation: 9825
LACNIC Deaggregation factor: 5.39
Prefixes being announced from the LACNIC address blocks: 58299
Unique aggregates announced from the LACNIC address blocks: 27489
LACNIC Region origin ASes present in the Internet Routing Table: 2048
LACNIC Prefixes per ASN: 28.47
LACNIC Region origin ASes announcing only one prefix: 550
LACNIC Region transit ASes present in the Internet Routing Table: 386
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 933
Number of LACNIC addresses announced to Internet: 146777344
Equivalent to 8 /8s, 191 /16s and 165 /24s
Percentage of available LACNIC address space announced: 87.5

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: 11770
Total AfriNIC prefixes after maximum aggregation: 2600
AfriNIC Deaggregation factor: 4.53
Prefixes being announced from the AfriNIC address blocks: 12427
Unique aggregates announced from the AfriNIC address blocks: 4237
AfriNIC Region origin ASes present in the Internet Routing Table: 697
AfriNIC Prefixes per ASN: 17.83
AfriNIC Region origin ASes announcing only one prefix: 206
AfriNIC Region transit ASes present in the Internet Routing Table: 138
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48607488
Equivalent to 2 /8s, 229 /16s and 177 /24s
Percentage of available AfriNIC address space announced: 48.3

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 2731 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2156 11550 653 Korea Telecom (KIX)
7545 2122 319 112 TPG Internet Pty Ltd
4755 1803 392 191 TATA Communications formerly
9829 1559 1251 42 BSNL National Internet Backbo
9583 1322 104 548 Sify Limited
9498 1229 309 72 BHARTI Airtel Ltd.
7552 1174 1080 13 Vietel Corporation
24560 1098 382 167 Bharti Airtel Ltd., Telemedia
4808 1042 1946 303 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3028 3688 53 BellSouth.net Inc.
22773 2305 2939 139 Cox Communications, Inc.
1785 2146 686 131 PaeTec Communications, Inc.
18566 2049 379 178 MegaPath Corporation
20115 1681 1662 593 Charter Communications
4323 1640 1097 414 Time Warner Telecom
701 1503 11144 776 MCI Communications Services,
30036 1375 309 574 Mediacom Communications Corp
7018 1306 17746 851 AT&T WorldNet Services
6983 1295 756 580 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1932 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1208 458 908 Akamai Technologies European
31148 1011 45 19 FreeNet ISP
13188 898 99 42 TOV "Bank-Inform"
6849 860 363 39 JSC UKRTELECOM,
8551 845 370 38 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 683 798 53 Uni2 Autonomous System
35228 549 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3426 1839 90 NET Servicos de Comunicao S.A
10620 2689 435 209 Telmex Colombia S.A.
18881 1778 908 20 Global Village Telecom
7303 1740 1163 227 Telecom Argentina Stet-France
8151 1355 2852 424 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 831 94 91 Telconet S.A
6147 788 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 772 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1819 112 5 Sudanese Mobile Telephone (ZA
24863 891 338 26 LINKdotNET AS number
6713 598 653 27 Itissalat Al-MAGHRIB
8452 419 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
3741 247 921 209 The Internet Solution
36992 247 526 30 Etisalat MISR
29571 238 21 14 Ci Telecom Autonomous system
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3426 1839 90 NET Servicos de Comunicao S.A
6389 3028 3688 53 BellSouth.net Inc.
17974 2731 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2689 435 209 Telmex Colombia S.A.
22773 2305 2939 139 Cox Communications, Inc.
4766 2156 11550 653 Korea Telecom (KIX)
1785 2146 686 131 PaeTec Communications, Inc.
7545 2122 319 112 TPG Internet Pty Ltd
18566 2049 379 178 MegaPath Corporation
8402 1932 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3028 2975 BellSouth.net Inc.
17974 2731 2643 PT TELEKOMUNIKASI INDONESIA
10620 2689 2480 Telmex Colombia S.A.
22773 2305 2166 Cox Communications, Inc.
1785 2146 2015 PaeTec Communications, Inc.
7545 2122 2010 TPG Internet Pty Ltd
8402 1932 1916 OJSC "Vimpelcom"
18566 2049 1871 MegaPath Corporation
36998 1819 1814 Sudanese Mobile Telephone (ZA
18881 1778 1758 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
65456 PRIVATE 5.109.32.0/19 23456 32-bit ASN transitio

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:473 /14:940 /15:1643 /16:12870 /17:6749 /18:11202
/19:23122 /20:32890 /21:35737 /22:50366 /23:43871 /24:250732
/25:46 /26:32 /27:49 /28:37 /29:29 /30:31
/31:0 /32:0

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

ASN No of nets Total ann. Description
18566 2004 2049 MegaPath Corporation
36998 1786 1819 Sudanese Mobile Telephone (ZA
6389 1699 3028 BellSouth.net Inc.
8402 1637 1932 OJSC "Vimpelcom"
22773 1555 2305 Cox Communications, Inc.
30036 1216 1375 Mediacom Communications Corp
1785 1163 2146 PaeTec Communications, Inc.
11492 1148 1185 Cable One
6983 1037 1295 ITC^Deltacom
22561 977 1252 Digital Teleport, Inc

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

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

1:921 2:865 3:3 4:16 5:790 6:21
8:616 12:1883 13:3 14:879 15:9 16:3
17:19 18:19 20:34 23:613 24:1755 27:1707
31:1497 32:46 33:2 34:5 36:105 37:1909
38:919 39:3 40:182 41:3216 42:236 44:14
46:2088 47:10 49:702 50:859 52:12 54:44
55:5 56:4 57:26 58:1095 59:587 60:370
61:1473 62:1225 63:1977 64:4398 65:2330 66:4135
67:2114 68:1085 69:3291 70:909 71:510 72:2024
74:2583 75:322 76:305 77:1209 78:1029 79:677
80:1284 81:1085 82:646 83:754 84:623 85:1265
86:383 87:1009 88:521 89:1565 90:150 91:5731
92:624 93:1600 94:2095 95:1499 96:520 97:351
98:1081 99:41 100:32 101:444 103:3851 105:532
106:144 107:249 108:546 109:2047 110:963 111:1134
112:586 113:812 114:748 115:1028 116:1008 117:811
118:1240 119:1272 120:369 121:751 122:1849 123:1254
124:1350 125:1481 128:602 129:222 130:341 131:661
132:349 133:159 134:298 135:73 136:276 137:247
138:353 139:168 140:172 141:348 142:538 143:403
144:494 145:90 146:532 147:430 148:725 149:359
150:153 151:476 152:412 153:208 154:51 155:524
156:309 157:368 158:284 159:698 160:359 161:457
162:949 163:207 164:624 165:581 166:280 167:641
168:1035 169:122 170:1151 171:185 172:12 173:1712
174:675 175:539 176:1321 177:2601 178:1884 179:343
180:1628 181:913 182:1420 183:476 184:623 185:1135
186:2765 187:1465 188:1946 189:1250 190:7293 192:6993
193:5452 194:4027 195:3380 196:1343 197:1072 198:4746
199:5493 200:6040 201:2531 202:8905 203:8973 204:4466
205:2616 206:2816 207:2757 208:3952 209:3692 210:2973
211:1610 212:2185 213:1968 214:871 215:84 216:5421
217:1722 218:622 219:316 220:1269 221:587 222:329
223:590

End of report
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